LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE CONGESTION USING … · 2019-03-23 ·...
Transcript of LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE CONGESTION USING … · 2019-03-23 ·...
Journal of Analysis and Computation (JAC) (An International Peer Reviewed Journal), www.ijaconline.com, ISSN 0973-2861
International Conference on Knowledge Discovery in Science and Technology 2019,
ICKDST '19, Pune
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 1
LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE
CONGESTION USING DIFFERENT TECHNIQUE
Pawan C. Tapre
Department of
Electrical Engineering
CVRU, Ph.D. Scholar
Bilaspur (C.G.), India
pawan.tapre25@rediffmai
l.com
Dr. Dharmendra kumar Singh
Department of Electronics
Engineering
Associate Professor,
CVRU, Bilaspur
(C.G.),India
dmsingh2001@rediffmai.
com
Dr. Sudhir Paraskar
Department of
Electrical Engineering, Professor,
SSGMCE, Shegaon(M.S.),
India
Abstract—In competitive electricity market, congestion is a
serious economic and reliability concern. Congestion is a
common problem that an independent system operator
faces in open access electricity market. This paper presents
a literature survey of different technique (algorithm) used
to solve the congestion of transmission line in deregulated
power system like FFA, ALO, PSO, HNM-FAPSO, PSO-
ITVAC, CS, GA, SA, DE, CCP, LA and , FACTs devices
like STATCOM, TCSC, SSSC, UPF.
Keywords—FFA, ALO, PSO, PSO-ITVAC, HNM-PSOTCSC,
LA, STATCOM, TCSC,SSSC, Congestion Management
I. INTRODUCTION
An overview literature and also the review of
literature of the different algorithm technique
to reduce congestion management in
deregulated power system. This paper
described also categorization, description of
works, problem statement, features and
challenges of diverse methodologies for
congestion management, research gaps and
challenges of different technique used in
literature.
II. LITERATURE SURVEY
Verma Sumit and Mukherjee V. (2016),
“Firefly algorithm for congestion management
in deregulated environment”, In this paper
demonstrates a novel optimization technique
for solution of the CM problem in open access
electricity market. FFA is, successfully,
implemented to minimize the rescheduling cost
for alleviating congestion completely.
Contingencies like line outage and sudden load
variation are considered in this work. The
proposed method is implemented on modified
IEEE 30- and IEEE 57-bus systems and the
results are compared with random search
method, simulated annealing and PSO. It is
observed that the proposed FFA effectively
relieves congestion, and rescheduling cost
obtained is much lower than the costs reported
by the other approaches. Moreover, total
amount of rescheduling and losses are also
found to be lower. From all the considered
simulated cases, it may be observed that FFA is
a potential tool to solve a non-linear,
multimodal problem. Compared to other
optimization algorithms like PSO, SA and
RSM, FFA has added advantage of random
reduction, lesser time to produce optimum
value and automatic subdivision among the
fireflies. Apart from the self improving process
within the current space, the FFA also includes
the improvement among its own space from the
previous stages. Thus, it may be concluded that
FFA is a powerful and strong approach to solve
optimization problems, providing most
economical, reliable and secure operating
conditions. Use of sensitivity analysis for
selection of participating generators along with
rescheduling may be the direction of future
research work. FFA may be recommended as
an effective optimization tool for some other
power engineering optimization applications.
LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE CONGESTION USING
DIFFERENT TECHNIQUE
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 2
Verma Sumit and Mukherjee V. (2016),
“Optimal real power rescheduling of generators
for congestion management using a novel ant
lion optimizer”, In this paper a generation
rescheduling-based approach for CM of power
system in power market is presented in this
paper. A novel ALO algorithm is utilised for
this purpose. Contingencies like line outage
and abrupt load variation are considered here.
Congestion in the overloaded lines is managed
by rescheduling the generations while
minimizing CM cost. The proposed ALO
method is, successfully, implemented on
modified IEEE 30-bus, modified IEEE 57-bus
and IEEE 118-bus test power systems for CM
of power system. The proposed ALO
algorithm-based outcomes are compared to
several well-known and recent algorithms (like
PSO, RSM, SA, EP, RCGA, HPSO, DE, BA,
CBA, FPA and FFA) reported in the recent
state-of-the-art literature. The comparative
analysis shows that the proposed ALO-based
cost of generation rescheduling is less as
compared to the other algorithms for all the
considered test cases. Moreover, the total
system loss has been also reduced after the
application of CM. The presented values of the
CR of various adopted algorithms for the
considered test cases show that the
convergence mobility of the proposed ALO
algorithm is the fastest one. Thus, the proposed
ALO algorithm provides a new and effective
approach to solve the CM problem of power
system in deregulated regime. The proposed
ALO algorithm may be recommended for
future researchers as an effective optimisation
tool to deal with multi-objective large-scale
power systems problems with the future
researchers.
Nesamalar J. Jeslin Drusila et al.
(2016),“Managing multi-line power congestion
by using Hybrid Nelder–Mead – Fuzzy
Adaptive Particle Swarm Optimization (HNM-
FAPSO)", have suggested the new method
called hybrid Nelder-Mead – Fuzzy Adaptive
Particle Swarm Optimization (HNM-FAPSO)
in order to manage the congestion in the multi-
line environment of electrical market. The
concerned operation was performed based on
selecting the generators which are responsive
to the congested line, through the
determination of Apparent Power Sensitivity
Factor (APSF). Moreover, the fuzzy
interference system was utilized to overcome
the limitation of PSO algorithm like the issue
of premature convergence. The test was carried
on IEEE 30 and IEEE 118 benchmark test bus
systems and has compared the results of the
proposed method with the conventional
algorithms like FAPSO, NM, Genetic
Algorithm (GA) and adaptive bacterial
foraging algorithm with Nelder–Mead
(ABFNM) and PSO algorithm. Thus the
proposed algorithm have reached its maximum
performance by attaining less cost , loss of
power and time for computation.
Gope Sadhan et al. (2016),
"Rescheduling of real power for congestion
management with integration of pumped
storage hydro unit using firefly algorithm", have developed the firefly algorithm to
accomplish the congestion management in the
transmission network. This experiment has
performed by taking an account of dual factors
like generator sensitivity factor (GSF) and bus
sensitivity factor (BSF). In addition, this
method has also concern the total count of
generators utilized in the network.
Subsequently, this experiment was carried on
IEEE 39 test bus system and has proved the
supremacy of the proposed method by proving
maximum security to the network with reduced
congestion cost.
Chellam S. et al (2016) "Power flow
tracing based transmission congestion pricing
in deregulated power markets", have propose a
simple transmission congestion pricing scheme
based on tracing principle by considering
generator fixed cost, cost for incurring loss and
transmission congestion cost. Restructuring has
brought about considerable changes by the
virtue of which electricity is now a commodity
and has converted into deregulated type. Such a
competitive market has paved way for
innumerable participants. This concept of
restructuring has led to overloading of
Journal of Analysis and Computation (JAC) (An International Peer Reviewed Journal), www.ijaconline.com, ISSN 0973-2861
International Conference on Knowledge Discovery in Science and Technology 2019,
ICKDST '19, Pune
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 3
transmission lines. In this power flow tracing
has been employed by using suitable
optimization algorithm, where the real power
generation has been maximized. Congestion in
the transmission line has been produced in a
new fashion by maximizing the real power
demand. The power flow under normal
operating condition and congestion is
determined and hence the difference in power
flow is estimated. Based on the estimated
power flow difference, the transmission line
congestion cost is computed. Pool model and
bilateral model has been considered in
simulation study to introduce the concept of
deregulation. The proposed method is tested
and validated on Modified IEEE 30 bus test
system and Indian utility 69 bus test system.
Mishra Akanksha and Nagesh Kumar
G.V. (2017), "Congestion Management of
Deregulated Power Systems by Optimal
Setting of Interline Power Flow Controller
using Gravitational Search Algorithm", have
propose a Disparity Line Utilization Factor for
the optimal placement and Gravitational Search
Algorithm based optimal tuning of IPFC to
control the congestion in transmission lines.
DLUF ranks the transmission lines in terms of
relative line congestion. The IPFC is
accordingly placed in the most congested and
the least congested line connected to the same
bus. Optimal Sizing of IPFC is carried using
Gravitational Search Algorithm. A
multiobjective function has been chosen for
tuning the parameters of the IPFC. This method
is implemented on an IEEE-30 bus test system.
Graphical representations have been included showing reduction in LUF of the transmission
lines after the placement of an IPFC. A
reduction in active power and reactive power
loss of the system by about 6% is observed
after an optimally tuned IPFC has been
included in the power system. The
effectiveness of the proposed tuning method
has also been shown through the reduction in
the values of the objective functions.
Sarwar Md. and Siddiqui Anwar
Shahzad (2016), "An approach to locational
marginal price based zonal congestion
management in deregulated electricity market”,
In this paper, a novel approach to zonal
congestion management in pool market is
proposed. The identification of different
congestion zones is based on the LMP
difference between buses connecting a line.
The most sensitive congestion zone is one
which groups the buses connecting lines of
high and non-uniform LMP difference across
them. The congestion is managed by optimally
allocating the DG in the most sensitive
congestion zone. The optimal allocation of DG
is also based on LMP difference. To analyze
the effectiveness of zonal based congestion
management, the DG is also allocated to other
zones which are considered as less sensitive to
congestion. The robustness of the proposed
methodology is tested on IEEE 14-bus system
and IEEE 57-bus system and it is found to be
efficient for both small and large power
systems.
Esfahani Mohammad Mahmoudian and
Yousefi Gholam Reza (2016) , "Real Time
Congestion Management in Power Systems
Considering Quasi-Dynamic Thermal Rating
and Congestion Clearing Time", In this paper,
we proposed an optimal real time transmission
congestion management algorithm by taking
quasi-dynamic thermal rates of transmission
lines into account. It led to defining the
congestion clearing time with respect to the
short term and emergency thermal ratings of
the transmission lines. Considering generators ramp rates along with using the sensitivity of
the congested lines current with respect to the
power system generators and loads made it
possible to find a very fast and feasible solution
for congestion management problem.
Furthermore, subdividing the clearing time into
subsequent subintervals allowed system
operators to adapt the congestion management
procedure with regard to loads, generations or
system configuration variations during
rescheduling process. This allows system
LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE CONGESTION USING
DIFFERENT TECHNIQUE
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 4
operators to fully exploit the capability of
conductors to withstand different current flows
according to temperature, initial amperage and
weather conditions when the system is faced
with an emergency situation. Numerical results
showed that the congestion mitigation and
reduction of the congestion costs and load
shedding is possible through the fast solution
of the proposed method.
Nesamalar J. Jeslin Drusila et al.
(2016), "Energy management by generator
rescheduling in congestive deregulated power
system", This article presents the energy
management methodology by employing
Cuckoo Search Algorithm. In order to get a
wider picture of energy management, the real
time congestion scenarios such as during peak
load, addition of bilateral and multilateral
power transactions, generation failure and
outage of transmission line are analyzed for a
duration of 24 h. Case study is performed on
IEEE 30-bus system and real time Tamilnadu
106-bus system. Results show that by optimal
rescheduling of generators for each scenario,
energy loss can be reduced by 17.71% and the
energy rescheduling cost can be reduced by
4.23% for 24 h. On an average, about 17,443 $
can be saved annually, which can be utilized
for strengthening the existing power system,
addition of new transmission lines, extract
more renewable energy, for involving in more
research analysis on energy generation and
transmission and so on. For all congested
cases, the amount of power rescheduled,
selection of generators, power loss, energy
generation cost, energy rescheduling cost and
slack bus contribution are observed. By
mimicking the breeding behavior of cuckoo,
CSA has been applied successfully for energy
management to get optimized energy savings
and cost savings and it serves as a guide for
ISO to get maximum savings and achieving
system stability in a shorter span of time.
However, the seasonal changes will have
impact on the congestion cost.
Hosseini Seyyed Ahmad et al. (2016) ,
"A new multi-objective solution approach to
solve transmission congestion management
problem of energy markets”, Congestion
management is an important operation function
of power markets as the operating conditions
obtained from the market clearing may not be
feasible in terms of security limits and stability
margins of the power system. The congestion
management problem involves different
competing objective functions consisting
congestion management cost and stability
margins. While a straight forward way for
tackling with this problem is formulating it as a
single objective optimization model including
the stability margins enforced through the
constraints, this approach may not be able to
implement an efficient compromise among
different objectives and lead to a vulnerable
power system or unreasonable congestion
management cost. Thus, in this paper,
following some recent research works in the
area, congestion management is modeled as a
MMP problem. The main contribution of this
paper is to propose a new MMP solution
method for solving multi-objective congestion
management problem. The main advantages of
the proposed NNC-based MMP solution
method are its systematic approach for
reducing the feasible design space and effective
covering of the objective space through a
uniform distribution of the Pareto solutions.
These capabilities enable the proposed
approach to find more preferred multi-
objective solutions compared to the other MMP
methods, such as weighting MMP, ordinary e-
constraint, augmented e-constraint and
modified augmented e-constraint, which have
been recently presented in the other research
works for solving multi-objective congestion
management problem. Additionally, an
optimality-based decision maker has also been
proposed to select the most preferred solution,
among the generated Pareto set for the MMP
problem, considering the relative importance of
the objective functions.
Rastgou Abdollah and Moshtagh Jamal
(2016), "Application of firefly algorithm for
multi-stage transmission expansion planning
with adequacy-security considerations in
deregulated environments", In this paper, by
expanding firefly algorithm, as one of the latest
Journal of Analysis and Computation (JAC) (An International Peer Reviewed Journal), www.ijaconline.com, ISSN 0973-2861
International Conference on Knowledge Discovery in Science and Technology 2019,
ICKDST '19, Pune
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 5
meta-heuristic algorithms, a new methodology
was presented for solving transmission
expansion planning problem. In the applied
model in addition to construction’s costs,
which is a fundamental part of TEP, congestion
cost and security cost are also considered. The
proposed methodology and GA, PSO, SA and
DE are applied on the IEEE 24-Bus and IEEE
118-Bus and Iran 400-KV transmission grid
test systems. The transmission expansion plans
resulted from each algorithm are also presented
and compared. According to obtained results
the proposed algorithm has a less investment
cost rather than the GA, PSO, SA and DE. It is
worth mentioning that the proposed method is
a better algorithm regarding its convergence
rate. Simulation results show that the proposed
approach his accurate and efficient, and has the
potential to be applied to large scale power
system planning problems.
Siddiqui Anwar Shahzad Siddiqui and
Md. Sarwar (2015), "An efficient particle
swarm optimizer for congestion management
in deregulated electricity market”, This paper
focuses on use of PSO-ITVAC based algorithm
in minimizing the active power rescheduling
cost of generators. A congestion management
methodology by optimal selection of
generators based on their magnitude of
generator sensitivities has been discussed.
PSO-ITVAC is proposed to minimize the cost
of active power rescheduling of the selected
generators. The proposed algorithm has been
tested on IEEE 30-bus system, IEEE 118 bus
system and33-bus Indian network and it has
been found that active power rescheduling cost using PSO-ITVAC is more efficiently
minimized as compared to PSO-TVAC for
small as well as large networks. Also, PSO-
ITVAC converges to optimal solution more
rapidly than PSO-TVAC.
Hojjat Mehrdad and Javidi Mohammad
Hossein (2015), "Chance-constrained
programming approach to stochastic
congestion management considering system
uncertainties", This paper proposed a new
approach for probabilistic CM based on the
CCP. Moreover, an analytical approach was
developed to solve the stochastic optimisation
problems including single and joint chance
constraint models. The main contribution of
this paper is modelling the CM problem in a
probabilistic framework using CCP. Recently,
the CCP has been widely used to deal with
system uncertainties in power system studies .
The main difference between our work and the
mentioned references arises from proposing an
analytical approach to solve the CCP-based
problem, while the other studies employed
numerical methods, such as Monte–Carlo
based GA, as presented in. Furthermore, the
proposed CCP-based CM includes the joint
model for line flow constraints which
guarantees the accuracy of the solution since it
considers the whole constraints simultaneously.
In our work, besides proposing an analytical
approach for the joint model, an innovative
method is adopted based on the Monte–Carlo
technique to evaluate the accuracy of the
solution. Comparison of the results showed that
the introduced framework for stochastic CM
has more flexibility and generates more reliable
solutions compared with the scenario based
method. In fact we have shown in this paper
that the proposed framework for the stochastic
CM outperforms the scenario-based methods.
In addition, the analytical solving approach
implemented in this work benefits from both
single and joint models while other CCP-based
studies apply numerical methods with high
complexity in modelling and performance.
Ghorani Rohim et al. (2015), "Identifying critical components for reliability
centred maintenance management of
deregulated power systems", In this paper, a
new methodology was introduced to derive the
importance of composite power system
components based on the expected outage costs
imposed to different system participants when
an outage occurs. A future market was run first
followed by a balancing market for the main
sake of modelling real market interactions and
participants’ bids and offers. The state
LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE CONGESTION USING
DIFFERENT TECHNIQUE
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 6
enumeration method was pursued through
which it could be possible for the system status
to be analysed in each probable outage state.
Having calculated the probability and
frequency of each system state, the expected
additional cost associated with each state was
then determined. The proposed mapping
method could eventually allocate the outage
costs to the involved components and
accordingly prioritise the composite power
system components to be dealt with in RCM
and asset management applications. The results
presented are observed to be more trustworthy
since a comprehensive market model has been
employed, AC analysis has been pursued and
higher order contingencies have been taken
care of, as well. One of the major advantages
of the proposed method is the monetary
language that can be of great use in several
decision making processes and cost/worth
analysis of the maintenance plans. On the other
hand, its ability to use parallel processing to
speed up the calculation process together with
its limited dependency on the conventional
time consuming steps provides the users and
operators with an awesome possibility to
analyse the reliability of large-scale composite
power systems much easier.
Khan Mohd Tauseef and Siddiqui
Anwar Shahzad (2014), "Congestion
management in deregulated power system
using FACTS device", In this paper problem
of congestion is solved by finding the optimal
location of TCSC using sensitivity analysis
technique and OPF is solved using Newton–
Raphson Technique. This technique is
employed on Delhi 33-bus system and
congestion is successfully relieved from the
line which was heavily loaded. Delhi 33-bus
system is a practical network in which some
buses having less importance in the network
are eliminated to reduce the effort and time to
solve the problem of Congestion Management.
Here Transmission is open-access and
distribution is deregulated, so this method can
be employed to any other practical network
also.
Kumar Ashwani and Mittapalli Ram
Kumar (2014) "Congestion management with
generic load model in hybrid electricity
markets with FACTS devices”, In this work,
the generators’ rescheduling based congestion
management with three bid block structure
offered by the Gencos has been implemented
for hybrid market model. The impact of ZIP
load model and load variations have been
incorporated taking load scaling factor. The
congestion cost for each hour of day has been
calculated without and with FACTS controllers
and comparison has been provided with out
and with FACTS devices considering constant
P, Q and ZIP load model. The economic load
dispatch results are obtained for base case data
with three bid block structure for each Gencos.
It is observed from the results that the
congestion cost obtained with ZIP load model
is lower compared to the congestion cost
obtained for constant P, Q load model. The
congestion cost reduces with all FACTS
controllers compared to the case without
FACTS controllers. With UPFC and SSSC the
cost is lower compared to the case with
STATCOM. The congestion cost reduces with
FACTS devices as the generators are subjected
to lower up and down regulation. The ZIP load
model has considerable impact on the
congestion cost and the ISO should analyze the
system for congestion management with
realistic load model.
Rajakumar B.R. (2014), "Lion
algorithm for standard and large scale bilinear
system identification: A global optimization
based on Lion's social behavior", We have
introduced LA for solving nonlinear system
identification problem for which Bilinear series
model was used. Experiments were carried out
to estimate the behavior model of a nonlinear
rationale benchmark digital system. In the first
case, standard bilinear model was used in
which LA dominated over the standard GA and
DE. In the second case, large scale bilinear
model was used to test the algorithms in which
LA outperformed GA and proved as equivalent
to DE. The obtained results are encouraging, if
the depth of experimentation is not considered.
Hence, the future work has to be conducted
Journal of Analysis and Computation (JAC) (An International Peer Reviewed Journal), www.ijaconline.com, ISSN 0973-2861
International Conference on Knowledge Discovery in Science and Technology 2019,
ICKDST '19, Pune
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 7
with wide experimental study in terms of large
scale problems along with systematic
comparisons. Further, we have planned to
extend the work for other nonlinear models
such as volterra series, cognitive systems, etc.
Kumar Ashwani et al [2013],
"Congestion management with FACTS devices
in deregulated electricity markets ensuring
loadability limit", In this work, the congestion
management based on generators’ rescheduling
with three bid block structure has been carried
out ensuring static security and voltage stability
limits. The 24 h variation of load has been
incorporated taking load scaling factor into
account. The congestion cost for each hour of
day has been calculated without and with
FACTS controllers and comparison has been
made. The economic load dispatch results are
obtained as base data during congestion
management. The results shows the congestion
cost reduces with FACTS controllers compared
to the case without FACTS controllers. The
congestion cost reduction is found lowest with
UPFC compared to other FACTS devices. The
comparison has been made on total congestion
cost of day, real power loss, and reactive power
loss and loadability factor. With UPFC, the
loadability margin of the system is higher
compared to other devices. The three bid
blocks offered by Gencos for congestion
management will be helpful to the ISO with
renewable energy sources integration in the
system. The authors are working in this
direction with more renewable energy sources
in the system and offering themselves for
congestion control during congestions hours.
Karthikeyan S. Prabhakar et al. (2013),
"A review on market power in deregulated
electricity market", This paper gives an
overview of the various work carried out in the
area of market power. The evolution of
different indices which are used to measure the
market power in the last 30 years and their
importance are discussed with a bibliographical
survey of necessary background. Some
researchers have given emphasize to the market
power measurement in terms of reactive power
and the impact of visualizing the degree of
market power. Review has also been made on
the application of Game theory and various
algorithms used in analyzing market power
issues. Many countries like Argentina,
Australia, Canada, Chile, Columbia, England,
Italy, Peru, New Zealand and United States
have already taken their electricity market
towards the deregulated environment, it is
necessary for the power system engineers to
focus on various issues pertaining to market
power. It is also very important that the
developing countries have to learn from the
experience had by the developed countries like
US. The authors also believe that the
discussion had under various sections in this
paper will help the research community who
has already oriented their research toward
market power.
Amjady Nima and Hakimi Mahmood
(2012), "Dynamic voltage stability constrained
congestion management framework for
deregulated electricity markets”, Congestion in
a power market happens because of network
limits. In a congested power system,
transactions are not feasible unless the system
operator uses a method to relieve the
congestion. In a deregulated power market, the
system operator has to pay to market
participants for altering their powers to
mitigate the congestion and finally make
feasible all power transactions. After applying
congestion management, the system security
level may be low because of hitting some
network limits. Such a network is highly vulnerable against even any little disturbance.
Thus, it is really important for the system
operator to use a method to mitigate congestion
ensuring system security after congestion
management. Using the previously introduced
congestion management methods to ensure
security, the system operator has to pay a
considerable fee to relieve congestion. Besides,
the previous methods do not consider dynamic
behavior of the power system for evaluating its
security level.
LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE CONGESTION USING
DIFFERENT TECHNIQUE
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 8
This paper proposes a novel congestion
management method considering dynamic
voltage stability of the power system. At first,
dynamic voltage stability of power system is
formulated based on bifurcation theory. Then,
the dynamic voltage stability formulation is
incorporated into the congestion management
framework. Extensive testing of the proposed
method confirms its validity. The proposed
method is compared with several other
congestion management methods presented in
the previous research works in the area. It is
shown that the proposed method can result in a
more robust power system, especially in
response to contingencies, with a lower
congestion management cost. Besides, the
proposed congestion management method can
be applied to power systems including static,
dynamic and composite load models.
Vijayakumar K. and Jegatheesan R.
(2012), "Optimal Location and Sizing of DG
for Congestion Management in Deregulated
Power Systems”, In this paper two efficient
methods are proposed for solving congestion
management problem in a day ahead electricity
market. This paper presents a simple method
for optimal sizing and optimal placement of
distributed generators. The first method gives
only one compromised solution considering
both the objectives, which does not provide any
choice to the operators. When this method is
used to find multiple solution, it has to be run
many times for finding a different solution in
each simulation run. It is time consuming and
cannot be used for real time problems. Though
the second multi-objective optimization does
not guarantee global optimal solution, it
provides a very close suboptimal solution. This
method also provides a set of pareto optimal
solutions for the congestion problem, giving
the system operator options for judicious
decision in solving the congestion.
Sood Yog Raj and Singh Randhir
(2010), "Optimal model of congestion
management in deregulated environment of
power sector with promotion of renewable
energy sources", In this paper a new optimal
model of congestion management has been
analyzed with IEEE-30 bus test system which
include conventional (thermal) as well
renewable (i.e. wind, solar and biomass based
generation). Test results reveal that proposed
model can be effectively used for combined
dispatch of transactions and pool. There is a
sufficient profit surplus of 1167.04 $/h for real
power demand and 275.68 $/h for real
generation using LMP approach as compared
with actual bid price approach. So LMP pricing
method provides social benefit to almost all
GENCOs and load centers depending upon
their allocation in the transmission network.
The SRMC of wheeling for non-firm
transaction 2 is negative. It means they are
favoring the transmission network i.e. reducing
congestion and losses. The transactions
involving RES are not curtailed at all (i.e. firm
transactions) moreover these are charged on the
basis of locational marginal pricing (LMP).
Similarly there is no curtailment of generation
from RES in the proposed model as depicted in
Table 6. So this optimal model of congestion
management is considering the promotion of
RES in the deregulated environment of power
sector and hence environmental friendly.
However, the net social benefit with LMP is
444.99 $/h whereas with actual bid price
approach is 1981.54 $/h. So it has been
observed that actual bid price approach
provides more social benefit. This benefit can
be utilized as subsidies for installing new
renewable energy plants, or subsidies to the
farmers, or defense or education sector as per
the policy of a particular country.
Esmailli Masoud et al. (2009),
"Congestion management considering voltage
security of power systems", Congestion in a
power market happens because of network
limits. In a congested power system,
transactions are not feasible unless the system
operator uses a method to relieve the
congestion. In a deregulated power market, the
system operator has to pay to market
participants to alter their powers to mitigate the
congestion and finally to make feasible all
power transactions. After applying congestion
management, the system security level may be
low because of hitting some network limits.
Journal of Analysis and Computation (JAC) (An International Peer Reviewed Journal), www.ijaconline.com, ISSN 0973-2861
International Conference on Knowledge Discovery in Science and Technology 2019,
ICKDST '19, Pune
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 9
Such a network is highly vulnerable against
disturbances. Thus, it is really beneficial for the
system operator to use a method to mitigate the
congestion so that the system security is more
retained after congestion management. Using
the previously introduced methods to retain
security, the system operator has to pay a
considerable fee to relieve congestion.
However, the proposed method, employing the
sensitivities of voltage stability margin,
provides both a higher level of security and
much lower security cost to mitigate
congestion.
From results of testing the proposed
and the previous methods on the New-England
test system, the proposed method has
discernible advantages on all other methods. It
provides more security with a much lower
price; that is, it reduces the cost of providing
security. It not only provides the system with a
greater voltage stability margin but also results
in a better voltage profile. Furthermore, the
proposed method makes the network more
robust against severe contingencies.
Dutta Sudipta and Singh S. P. (2008),
"Optimal Rescheduling of Generators for
Congestion Management Based on Particle
Swarm Optimization”, The present paper
focuses on demonstrating a technique for
optimum selection of generators for congestion
management and additionally the application of
PSO in the solution of the congestion
management problem. Generators from the
system are selected for congestion management
based on their sensitivities to the power flow of
the congested line followed by corrective rescheduling. The problem of congestion is
modeled as an optimization problem and
solved by particle swarm optimization
technique. The method has been tested on 39-
bus New England system, IEEE 30-bus and
118-bus systems successfully. Results obtained
on the 39-bus New England system has been
compared with the results reported using three
other techniques. The appropriateness of the
generator selection methodology has also been
compared with reported techniques on IEEE
30-bus and 118-bus systems. PSO algorithm
has many advantages such as simple concept
and easy understanding; the entire complex
decision making is modeled by two simple (1)
and (2). The robustness of the algorithm is
demonstrated by solving three different
networks of different sizes and complexities
with equal performance. Since the convergence
of the PSO algorithm depends on the
appropriate selection of particle size, inertia
weight and maximum velocity of particles,
improper choice of these parameters may lead
to inferior results or nonconvergence.
However, test results reveal that the proposed
implementation is effective in managing
congestion and outperforms.
Besharat Hadi and Taher Seywd
Abbas (2008), "Congestion management by
determining optimal location of TCSC in
deregulated power systems", Congestion
management is an important issue in
deregulated power systems. FACTS devices
such as TCSC by controlling the power flows
in the network can help to reduce the flows in
heavily loaded lines. Because of the
considerable costs of FACTS devices, it is
important to obtain optimal location for
placement of these devices. In this paper, two
sensitivity-based methods have been developed
for determining the optimal location of TCSC
in an electricity market. In a system, first two
optimal locations of TCSC can be decided
based on the sensitivity factors aij and bij and
then optimal location is selected based on
minimizing production cost plus device cost. Test results obtained on two 5-bus power
systems show that sensitivity factors along with
TCSC cost could be effectively used for
determining optimal location of TCSC. The
effect of TCSC on line outage in order to relive
congestion has also been studied. It can be
observed from the results of line outage that we
can relieve congestion by setting the installed
TCSC.
LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE CONGESTION USING
DIFFERENT TECHNIQUE
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 10
Acharya Naresh and Mithulananthan N.
(2007), “Locating series FACTS devices for
congestion management in deregulated
electricity markets", LMP difference and
congestion rent contribution methodologies are
proposed for locating series FACTS devices to
manage congestion in deregulated electricity
markets. The proposed methodologies are
based on LMPs that are by-products of OPF
problem formulation. The proposed methods
are tested on three test systems with different
sizes and complexities, namely IEEE 14, IEEE
30 and IEEE 57, and validated through look-up
tables formed by exhaustive search for each
test case. Result shows that proposed methods,
unlike sensitivity methods where non-linearity
in not captured, correctly capture the best
locations for series FACTS devices for
congestion management in deregulated
electricity market.
Mendez Roberto and Rudnick Hugh
(2004), "Congestion management and
transmission rights in centralized electric
markets”,A static simulation model is proposed
and developed for nodal and zonal dispatching
implementing marginal theory to incorporate
CMS under FTR and FGR. The transmission
rights systems are defined under a centralized
electric market, with the main contribution of
this work being the FGR valuation, which is
directly obtained from the centralized ZLMP
differences contained in the respective FG
defined from the nodal dispatch. Then,
compatibility in implementation between FTR
and FGR are defined, so that both financial
instruments against price congestions are
evaluated for a possible implementation under
the same market structure. Although the FGR
model outlined in this work presents certain
advantages in relation to the FTR, the
instability of zonal definition and the poor
performance of a hybrid CMS, made
unattractive the zonal price modeling
complemented with FGR, as compared to a
nodal model with FTR, where there is
experience in actual implementation. The
proposal is of interest in centralized dispatch
pool markets.
Kumar Ashwani ey al. (2004), "A zonal
congestion management approach using real
and reactive power rescheduling”, In this
paper, a new zonal-based congestion
management approach has been presented. The
zones have been formed based on the
combined effect of real and reactive line power
flow sensitivity indexes. An optimal power
flow model minimizing the congestion cost for
redispatch of generators and capacitors
considering a general market structure with
pool, bilateral, and multilateral contracts has
been studied. The test results on a 39-bus New
England system and 75-bus Indian system
reveal the following.
The congestion costs in all of the cases
based on the proposed method are found
to be quite less compared with those
obtained from a dc model .
The congestion costs for cases employing
reactive power support from generators and
capacitors are considerably less than the
cases without any reactive support.
The reactive power support utilized from an
optimally located capacitor in the system is
more effective in reducing congestion cost
as compared to additional reactive power
support taken from the generators.
The amount of rescheduling of real power
transactions is reduced in the presence of
reactive support considered in the system
for congestion management.
The proposed approach is computationally
efficient and simple as it utilizes the
sensitivity factors, which can be easily
updated.
Yamina H.Y. and Shahidehpour S.M.
(2003), "Congestion management coordination
in the deregulated power market", This paper
presents new model to generate Benders cuts
by the ISO in case of any congestion
management infeasibility is detected. Also, it
explains how to include transmission security
Benders cuts in the GENCOs’ price-based unit
commitment problem in a deregulated power
market structure. The proposed model can be
used in deregulated power markets such as
New England, California, Australia and New
Zealand power markets where GENCOs are
Journal of Analysis and Computation (JAC) (An International Peer Reviewed Journal), www.ijaconline.com, ISSN 0973-2861
International Conference on Knowledge Discovery in Science and Technology 2019,
ICKDST '19, Pune
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 11
taking the risk of committing their units and the
ISO is responsible for the system security. The
test on the 36 unit GENCOs shows the
effectiveness of the proposed model in solving
the problem of infeasibility in congestion
management through a cooperative process
between the ISO and the GENCOs.
Singh S.N. and A. K. David A.K.
(2000), "Towards dynamic security-
constrained congestion management in open
power market", An optimal transmission
dispatch methodology that takes into account
consumer willingness to pay to avoid
curtailment and uses sensitivity information of
TEM with respect to the change in generation
from critical generators to noncritical
generators has been proposed in this letter. The
case studies illustrate that the critical and
noncritical generator pair that has the highest
sensitivity is the first choice suitable for
scheduling. However, depending on contractual
and price obligations, other pairs with high
sensitivity may be preferentially selected.
It was also observed that with some priority
arrangement coordination among generators
would reduce the power curtailment in both
pool and bilateral transactions. The most
significant result of these findings is that
different philosophies of curtailment
management, rescheduling in response to static
and dynamic security concerns, and mixes of
these strategies can be explored using these
methodologies.
III. PROBLEM STATEMENT
After observing the features and challenges of
the literature review, it reveals significance of
adopted stochastic search methodologies for
congestion management in a deregulated
electrical market. Those meta-heuristic
methods include Firefly algorithm , PSO and
ALO . Although these aforementioned
algorithms are applied for congestion
management, it needs to adopt significant
improvements to meet the challenges yet.
Firefly algorithm is reliable, secure and
inexpensive algorithm, however, in some cases
it gets struck into local minima. Moreover, the
parameters of the algorithm are independent of
time and memory power is very low.
Subsequently, PSO algorithm is highly utilized
for reducing cost of rescheduling of generators
and it have the ability to handle the congestion
management under small and large networks
with less computational time, but the premature
convergence is a leading issue under this
algorithm. On the other hand, ALO requires
only less number of fitness evaluations which
provides effective convergence; however, it
may cause complexity in solving discrete
problems. Therefore, it is essential to maintain
the congestion management in a deregulated
electrical environment through the
implementation of an effective optimization
algorithm.
IV. RESEARCH GAPS AND
CHALLENGES
The examination of features and challenges of
the models that specified in literature is
analyzed. It exposes the importance of
espoused stochastic search modalities for
managing the congestion in a deregulated
electrical market. The meta-heuristic models
comprise Firefly algorithm Md Sarwar and
Anwar Shahzad Siddiqui (2015), Sadhan Gope,
Arup Kumar Goswami, Prashant Kumar
Tiwari and Subhasish Deb (2016), PSO Sumit
Verma and V. Mukherjee (2016), J. Jeslin
Drusila Nesamalar, P. Venkatesh and S.
Charles Raja (2016) and ALO S. Verma and V.
Mukherjee (2016). Even though the aforesaid
algorithms are successfully smeared in
managing the congestion, still, it needs some
significant improvement in rectifying certain
challenges. It is observed that Firefly algorithm
is more reliable, protective as well as
inexpensive. However, for some situation; it
becomes struck into some local minima.
Further, it has some parameters like time
independence, low memory power.
LITERATURE SURVEY IN DEREGULATED POWER SYSTEM TO REDUCE CONGESTION USING
DIFFERENT TECHNIQUE
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 12
Consequently, PSO algorithm is effectively
exploited for cost minimization in generator
rescheduling. It also has the capacity of
handling the congestion management in minor
and high networks even in less computational
time. However, premature convergence is a
principal issue in this algorithm. In contrast to
this, ALO needs only minimum fitness
evaluations that grant efficient convergence.
However, it often suffers from intricacy in
resolving the discrete problems. Hence to solve
all the mentioned issues, it is vital to maintain
the congestion in a deregulated power
environment via the application of a
resourceful optimization algorithm.
TABLE-1 FEATURES AND CHALLENGES
Author
[Citation]
Adopted
Methodology
Features Challenges
Sarwar
and Anwar
Firefly
algorithm
Provide economical, reliable
and secure operating
conditions
Reduced rescheduling cost
Get trapped into several local
optima
Parameters of algorithm do
not change with time
Sumit and
Mukherjee
Particle
Swarm
Optimization
Reduced rescheduling cost
Able to handle small as well
as large networks
Slow convergence in refined
search stage
Trapped in local area
Verma and
Mukherjee
Ant lion
optimisation
Need to find less number of
fitness function
Not trapped in local minima
Effective convergence
Complexity in solving
discrete problems
Jeslin et
al.
Particle
Swarm
Optimization
Less cost
Less computational time
Less power loss
problem of premature
convergence
Tendency to a fast and
premature convergence in
mid optimum points
Sadhan et
al.
Firefly
algorithm
Provide maximum security to
the network
Reduce the congestion cost
Get trapped into several local
optima
Lack of exploration
Journal of Analysis and Computation (JAC) (An International Peer Reviewed Journal), www.ijaconline.com, ISSN 0973-2861
International Conference on Knowledge Discovery in Science and Technology 2019,
ICKDST '19, Pune
Pawan C. Tapre , Dr. Dharmendra kumar Singh, Dr. Sudhir Paraskar 13
V. CONCLUSION
In this paper after reviewing of literature
related to congestion management in
deregulated power system features and
challenges of diverse methodologies for
congestion management, research gaps and
challenges were studied and need to implement
new LA and LPGW method to remove
congestion and reduce rescheduling cost.
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DIFFERENT TECHNIQUE
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