以华东电网为背景,提出了大电网平台下抽水蓄能电站群短期多电网启发式调峰方法。该方法以重构的总负荷曲线最高、最低点作为启发信息确定电站发电、抽水位置及大小,同时以各电网剩余负荷方差最小为目标,采用出力切分和组合优化进行出力网间分配,通过交替进行电站出力求解和网间分配,直至得到满足控制需求的电站负荷分配结果。实例结果表明,所提出的方法能切实解决抽水蓄能电站群多电网负荷分配难题。
A short-term heuristic method of pumped(hydroenergy)storage plants(PSP)operation for regulating peak loads of multiple power grids has been developed based on the actual project of East China Grid(ECG).The power generation or pump power of PSP is decided by the maximum or minimum value of the total load at each iteration.And power generation or pump power is further allocated between power grids using two strategies,known as power cutup and combination optimization.This process is repeated till the desired target obj ectives of PSP are satisfied.The case results over ECG show that the proposed method is able to solve the load distribution problem of PSP between multiple power grids.