关键词: 水电站, 增容改造, 扩机, 特征, 对策建议

Abstract: Among large and medium-sized hydropower stations in China, some of the older hydropower units that have been in operation for a long time have experienced a decline in performance and an increase in failure rates. It is of significance to take necessary technical measures to increase the capacity of the old units. Therefore, investigations and studies on the issue of hydropower unit capacity upgrading and renovation are carried out. Based on the survey, the existing problems and difficulties in the current implementation of hydropower unit capacity upgrading and renovation are analyzed and summarized, and suggestions are given for reference.

Key words: hydropower station, capacity upgrading and renovation, increase unit, characteristic, measure and suggestion