龙滩水电站汛前消落水位优化及规律研究

Optimization and Rule Analysis of Drawdown Level before Flood Season of Longtan Hydropower Station

龙滩水电站是红水河开发的控制性水库,开展龙滩水电站汛前消落水位优化研究,对流域防洪安全、供水安全、电网用电安全意义重大。在分析龙滩水电站汛前消落运行现状及调度需求的基础上,建立了龙滩水电站汛前消落优化调度模型,并通过进化算法对模型高效求解,然后在多年优化调度方案集的基础上对龙滩水电站优化消落水位规律进行深入分析,提炼龙滩水电站汛前消落水位优化调度规则。结果表明通过优化龙滩水电站汛前消落水位过程,能够显著提高梯级水库群的多年平均发电效益,所提炼的龙滩水电站汛前消落水位优化调度规则能在实际调度运行中提供技术支撑。

Longtan Hydropower Station is the controlled reservoir of the Hongshui River.It is of significance for flood control,water supply,and power safety to study the optimal drawdown level before flood seasons in this station.Based on analyzing the drawdown level and operation requirements of Longtan Hydropower Station,this paper develops an operation model for the optimal drawdown of the station and solves the model efficiently by the evolutionary algorithm.Then,the optimization rule of the drawdown level in Longtan Hydropower Station is analyzed in depth and derived based on the multi-year optimal operation scheme set.The results show that the multi-year average power generation efficiency of cascade reservoirs can be significantly improved by optimizing the drawdown level process before flood seasons in Longtan Hydropower Station.Additionally,the derived operation rule can provide technical support for actual operations.