石泉水电站增容发电量分析

Analysis on Power Generation after Extension,Shiquan Hydropower Plant

石泉水电站经过40多年运行,入库径流、有效库容、径流资料序列、水库的调节能力、防洪要求及环境因素都发生了变化,电站原设计电量已不能作为评判水库效能的指标依据;加之机组老化严重,亟需增容改造,所以对其能量指标复核十分必要。对石泉水电站机组增容改造后,提高了水量利用率,增加了发电量,获取了经济效率。

Through over 40- year operation,inflow runoff,effective storage capacity,runoff data series,reservoir regulating capacity,flood control requirement and environmental factors of the hydropower plant all are changed. The original design power generation cannot be applied as an indicator to evaluate the reservoir efficiency. Furthermore,the hydropower plant needs to be updated and extended with the serious aging of the plant equipment. Therefore,it is necessary to recheck the energy indicator. After the plant extension,water utilization is improved,the power generation is increased and the economic benefit is obtained.