Reliability evaluation of small stand-alone wind energy conversion systems using a time series simulation model

A time series simulation model for the reliability evaluation of small stand-alone wind energy conversion systems (SSWECS) containing battery storages is presented. The performance of such a system is quite different from one containing conventional generating units due to the dispersed nature of the wind at the specific site location. The reliability of a SSWECS depends on various factors such as the reserve margin, the battery size and charging (discharging) characteristics, the wind speed, the wind turbine generator´s failure/repair characteristics and power ratings, the system load profile and the system operating philosophy. The results and discussions presented should prove useful in planning, designing, and operating small stand-alone wind energy conversion systems for electricity supply in remote areas.