Reliability Assessment of Wind, Solar and Hydropower Combined System

摘要

The power industry located in southwestern China is constructing a wind, solar and hydropower combined system. To this end, reliability assessment on this practical power system is needed. Based on a unique algorithm for quickly solving the loss of the load probability (LOLP) curve, this paper considers timing correlation of different types of energy sources and develops a reliability analysis procedure for multi-energy combined systems. The results show that the reliability indices obtained by ignoring the timing correlation is higher than that considering the timing correlation, which means the reliability of the system will be overestimated, and this may lead to operational safety risks.