Impact of Wind Energy on Reliability of Generation System

Abstract

In power systems planning studies, reliability evaluation plays an important role. Due to increasing penetrations of renewables in power systems, it became essential to analyze system behavior under different conditions. This paper studies two cases: adding wind energy into the modern power system and replacing conventional generators with wind energy generation. These two cases are considered by changing wind energy penetration. In the suggested method, states of conventional generator units and wind farms are combined utilizing sequential monte carlo simulation. Weibull distribution is employed to make the estimates for the hourly wind speeds. The Copula approach simulates correlated random variables that represent the correlation between wind farms. Loss of Load Expectation (LOLE) and Loss of Energy Expectation (LOEE) are considered to evaluate the effect of wind energy generation on system reliability. The proposed approach of reliability evaluation of the generation system is examined on IEEE-RTS 24 bus system. © 2023 IEEE.