以金沙江中游梯级水电站群为例,结合电网需求,建立了基于负荷曲线运行的梯级水电站群短期联合发电优化调度模型,并采用逐次逼近法与逐步优化法的耦合算法对模型进行求解,比较分析了基于该模型的短期运行发电量效益。结果表明,梯级联合运行更符合电网调度需求,且在周调节基础上进一步日调节,综合效益增幅显著。 Taking the cascade hydropower stations in the middle reaches of the Jinsha River as an example, the optimal short-term combined generation scheduling model for cascaded hydropower stations operating based on load curves is established based on the demand of the power grid. The coupled algorithm of successive approximation and stepwise optimization is used to solve the model. Based on the model of short-term operating power generation benefits. The results show that the cascade operation is more in line with the dispatching demand of power grid, and further adjustment is made on the basis of weekly adjustment, with a significant increase in comprehensive benefits.