Reliability Study of Power Generation System Utilizing Wind Power Derek H. Geiger DSES-6070 HV5 Term...
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Transcript of Reliability Study of Power Generation System Utilizing Wind Power Derek H. Geiger DSES-6070 HV5 Term...
Reliability Study of Power Generation System Utilizing Wind Power
Derek H. Geiger
DSES-6070 HV5 Term Project
31-March-2008
Power Generation Systems
Majority of power generated today provided by conventional energy sources
– Coal– Nuclear– Hydro– Fossil Fuels
Benefits: Provide reliable source of energy Drawbacks: Except for Hydro, limited supply of
resources and create pollution
Alternative Power Generation Systems
More and more implementation of alternative power generations systems (10% to 20%)
– Solar Power– Wind Power– Fuel Cell
Benefits: Clean, unlimited resources Drawbacks: Produce unpredictable time varying power
Reliability Project Objective
The goal of the project is to develop a simple reliability model for a power generation system to evaluation the benefits of alternative power sources
Model the following:– Reliability of power generation system or
‘network’ provided by a conventional power sources
– Reliability of wind farm– Reliability of hybrid power generation system
Reliability Model of Conventional Power Generation System
Conventional power plant modeled as:– Constant power source (providing max power)– Failure distribution is exponential– Repair rate is lognormal
Num Rated Power (MW)Failure Rate
(Failures/Year)Repair Time
(Hours)Repair Time STD (hours)
FORMTTF
(hours)
1 40 6 45 9 0.0299 14602 40 6 45 9 0.0299 14603 10 4 45 9 0.02013 21904 20 5 45 9 0.02504 17525 5 2 45 9 0.01017 43806 5 2 45 9 0.01017 43807 40 3 60 12 0.02013 29208 20 2.4 55 11 0.01484 36509 20 2.4 55 11 0.01484 3650
10 20 2.4 55 11 0.01484 365011 20 2.4 55 11 0.01484 3650
Power Required:175 MW
Allow PP:240 MW
Raptor Model of Power System
20 MW
10 MW
40 MW
Reliability Results of Power Generation System For 1 Year Period
Reliability Model of Wind Farm
Very simple model:– Each turbine produces 1 MW of constant power– Failure distribution is exponential
MTTF = 4380 hrs
– Repair rate is lognormal MDT = 45 hrs with a STD of 9 hrs
– Does not include Weibull wind distribution or non-linear power curve
– 22 turbines required to generate 20 MW of power
Raptor Model of Wind Farm
Reliability Results of Wind Farm for 1 Year Period
Reliability Model & Results of Hybrid Power Gen. System for 1 Year Period
Replace most unreliable 20 MW PP with Wind Farm
Conclusions
Simple models of conventional and wind farm power generation systems
Not considered in scope of project were time varying power generation considerations of wind power
Results showed that by adding in a wind farm to conventional power system increases system reliability considerably due to high system redundancy
20 MW System Only
20 MW with Wind Farm