电网水电站群短期优化调度模型体系及应用分析

Short-Term Optimal Scheduling Model System and Its Application of Electric Grid Hydro-Power Station Group

立足电网水电站群短期优化调度的业务特点及应用需求,提出电网水电系统短期优化调度的多模型转化机制及其运用准则,为水电站群的日计划方案编制提供决策支撑;以水电能源的高效利用和电力系统的电力电量平衡为基础,建立了相互关联的短期优化模型体系,重点阐述了电网水电站群可用水量与水电负荷需求的协调关系。国网直调水电系统的计算结果表明,多模型转化机制能准确体现电网的不同调度意图,并获得对应的水电站群负荷控制策略。

According to the business characteristics and application requirements of the short-term optimal scheduling of the hydro-power station group in the power grid, this paper puts forward a multiple model conversion mechanism and its application in the short-term optimal scheduling of the electric grid hydro-power system. This model can provide decision supports for the daily plan scheming of the hydro-power system.Based on the efficient utilization of hydro-power energy and the balance of electric power and energy in power system, this paper builds the short-term optimization model system. It elaborates the coordination relationship of the available water and load demand of the hydro-power station group in the power grid,and the connotation of the multiple objective scheduling of the hydro-power system. The calculation results of the hydro-power system in SGCC show that, the multiple model conversion mechanism can accurately reflect different scheduling intent, and obtain the corresponding control strategy of the hydro-power station group.