赣江中游梯级水库群联合发电调度补偿效益分析研究

Compensation benefits of combined power generation operation of cascaded reservoir groups in the middle reaches of Ganjiang river

为解决赣江中游水库群没有统一有效的联合调度方式而发电量较低的问题,本文探索了赣江中游梯级水库群的联合发电及其补偿效益,通过研究赣江中游水库群在单库优化调度和联合优化调度下,以发电量最大为目标函数,采用DPSA-POA算法与DE智能算法相结合对模型进行求解,研究在不同典型年下水库发电调度补偿效益。结果表明:在丰水年(1995)、枯水年(1991)、平水年(1985)不同典型年下,水库联合调度比单库调度增发电量0.01%、0.55%、0.91%,相应减少弃水2.26%、5.01%、10.72%,在来水越少的年份,补偿效益更为明显,研究结果可为赣江中游梯级水库群联合调度补偿效益分析及其梯级水库群开展合作调度提供理论依据。

In order to solve the problem that the reservoir groups in the middle reaches of the Ganjiang river have low power generation capacity due to the lack of a unified and effective joint dispatch mode,this paper explores the joint power generation and compensation benefits of the cascade reservoir groups in the middle reaches of the Ganjiang river,and studies the compensation benefits of reservoir power generation dispatch in different typical years by studying the maximum power generation as the objective function under the optimization dispatch and joint optimization scheduling of a single reservoir and the joint optimization dispatch of the Ganjiang river reservoir group.The results show that under the typical years of abundant water(1995),dry year(1991)and normal water year(1985),the joint operation of reservoirs increases the power generation by 0.01%,0.55%and 0.91%compared with the single reservoir dispatch,and the corresponding reduction of surplus water is 2.26%,5.1%and 10.72%,and the compensation benefit is more obvious in the year with less water.The results can provide a theoretical basis for the analysis of the compensation benefit of joint operation of cascade reservoir groups in the middle reaches of the Ganjiang river and the cooperative scheduling of cascade reservoir groups.