Evaluation of probability distributions of distribution system reliability indices considering WTG as alternative supply

Using wind turbine generators (WTG) as an alternative supply in a rural distribution system will affect both the mean values and the probability distributions of system reliability indices due to the fluctuating characteristics of wind speed. This paper investigates the impacts on the reliability indices and their probability distributions of using WTG as an alternative supply. A time sequential simulation technique is used to simulate the time-varying nature of wind speed and the random failure of system elements. The probability distributions of basic load point and system reliability indices for a modified rural distribution system are presented. The effects of WTG parameters on the index probability distributions are discussed.