摘要
白山混合式抽水蓄能电站为具有常规发电机组和抽水蓄能机组混合的大型水库水电站。本文在充分考虑东北电网需求的前提下,利用抽水蓄能机组的抽水功能,优化白山水库年内的水位变化过程,提高白山水库的运行水位,获得最大化的"水头"增发电量,实现白山混合式抽水蓄能电站年发电量的最大化或年调峰效益的最大化。结果表明发电量最大模型的抽水发电转换效率明显比调峰效益最大模型相应系列的抽水发电转换效率高,发电量最大模型的抽水发电转换效率为90.65～95.50%,调峰效益最大模型的抽水发电转换效率为87.94～92.58%,都比纯抽水蓄能电站的发电转换效率高,表明了混合式抽水蓄能电站的优势。
Baishan power station is a hybrid pumped storage type installed with conventional units and pumped storage units on a large-size reservoir. This paper studies two optional schemes under the requirement of satisfying the power grids demands. The first one maximizes the annual power yield minus the pumping- consumed power,second one maximizes the peak load dispatching benefits. In these schemes,optimizing the reservoir’s dispatch,improving the storage level and maximizing the additional yield by the head are three crucial factors. Results show a higher energy conversion efficiency 90. 65 - 95. 5% of the yield-optional scheme than that of dispatch-benefit - optional scheme,87. 94% - 92. 58% . Both schemes of the hybrid mode are more efficient than a single pumped storage mode.
出处
《水力发电学报》
EI
CSCD
北大核心
2010年第2期145-148,162,共5页
Journal of Hydroelectric Engineering
关键词
抽水蓄能电站
混合
水库调度
效益
效率
pumped-storage power station
hybrid
reservoir operation
benefit
efficiency
