Analysis on operation reliability of hydropower units in China

Abstract

With the rapid development of hydropower in China, in just a few years installed capacity has leapt to the world's first, in addition to thermal power outside the development of the second largest electricity supply. However, the equivalent availability level of hydropower units in China is lower than that of conventional fossil energy thermal power units, and the cost of unit engineering is higher, especially the unplanned shutdown coefficient of pumped storage units in China is much higher than the world level. Therefore, it is urgent to carry out the research on the operation reliability of generator sets. Based on the analysis and summary of the basic situation, operation situation, planned outage and unplanned shutdown of hydropower units in China, this paper puts forward the main problems of reliability of hydropower units and hydroelectric power plants, which are used for reference and exchange by professional and technical personnel engaged in hydropower industry.