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GURU NANAK INSTITUTIONS TECHNICAL CAMPUS, Ibrahimpatnam
SCHOOL OF ENGINEERING AND TECHNOLGY
Department of Electrical and Electronics Engineering
DC Smart Grid Connected with Fuel Charging StationAnd
AC Load by Hybrid MLI
By
P. Srikant 10B91A0284
Internal Project Guide
Mr. K.Rajasekhar
Asst.Professor
Project Co-ordinator
Mr. K.Rajasekhar
Asst.Professor
ABSTRACT
This report presents the following :
•Hybrid energy system connected with DC Smart
grid
•Which is inturn connected with DC fuel charging
station and AC loads through Multilevel inverter
• The aim is to provide efficient Renewable energy
through DC Smart grids and also AC power though
Multilevel inverters (MLI) and bidirectional flow of
power
The paper also provides :
•An Energy Management System to improve the
efficiency of the system and for better monitoring
HYBRID ENERGY•A hybrid energy system usually consists of two or
more renewable energy sources used together.
•It provides increased system efficiency as well as
greater balance in energy supply for longer life than
the non renewable fuels.
WIND ENERGY• Wind energy has great potential for combating
climatic change, ensuring clean and efficientenergy.
The wind energy system
consists of :
• Wind Turbine
• Synchronous
generator
• Power electronic
converters
SOLAR ENERGY• A solar cell (photovoltaic cell) is an electrical
device that converts the energy of light directlyinto electricity by the photovoltaic effect.
Operations of PV cell:
•The absorption of light,
generating electron-
hole pairs
•The separation of charge
carriers of opposite types.
•The separate extraction
of those carriers to an
external circuit.
ELECTRIC VEHICLES• An electric vehicle (EV), also referred to as
an electric drive vehicle, uses one or more electric
motors or traction motors for propulsion.
Three types of electric vehicles:
• Directly powered from an external power station
•Powered by stored electricity originally from an
external power source
•Powered by an on-board electrical generator, such
as an internal combustion engine (hybrid electric
vehicles) or a hydrogen fuel cell.
SMART GRID
• A smart grid is a modernized electrical grid that
uses analogue or digital information and
communications technology to gather and act on
information, such as information about the
behaviors of suppliers and consumers, in an
automated fashion to improve the efficiency,
reliability, economics, and sustainability of the
production and distribution of electricity.
CASCADED H-BRIDGE
MULTILEVEL INVERTER
• The term multilevel began with the three-levelconverter.
• It is used to obtain pure sinusoidal in staircasewave form.
• In a multilevel waveform, the ac output of each ofthe different level H-bridge cells is connected inseries.
• The synthesized voltage waveformis, therefore, the sum of the inverter outputs.
• The number of output phase voltage levels in acascaded inverter is defined by
m = 2s +1
where s is the number of dc sources.
PROPOSED MODEL
ENERGY MANAGEMENT
SYSTEM
MULTILEVEL INVERTER
13 LEVEL
CASCADED H
BRIDGE
MULTILEVEL
INVERTER
SOLAR MODEL
GATE PULSE AND
SWITCH VOLTAGE
OUTPUT VOLTAGE AND
OUTPUT POWER
CONCLUSIONThis report presents the following :•Hybrid energy system connected with DC Smartgrid•Which is inturn connected with DC fuel chargingstation and AC loads through Multilevel inverter• The aim is to provide efficient Renewable energythrough DC Smart grids and also AC power thoughMultilevel inverters (MLI) and bidirectional flow ofpower
The paper also provides :•An Energy Management System to improve theefficiency of the system and for better monitoring
FUTURE SCOPE
• It can implement in grid system, real time
application.
• Various other MLI’s can be used for better AC
output.
• Future technologies can be adapted for better
monitoring (like GSM, GPRS based).
THANK YOU !!