【摘要】 在水电站优化调度中,确定性优化所得到的最优决策受前后时段径流影响,入库径流的不稳定会使部分时段的调度规则极为复杂,提取存在较大的难度。针对这一问题,提出了一种机理明确的水电站分期调度规则提取思路,即根据各个时段调度规律的稳定性将调度期划分为稳定期与衔接期,并对调度规律稳定期与衔接期分别采用不同的调度规则提取方法。同时,通过分析衔接期径流特性,引入了逐时段流量分级策略,对衔接期最优决策呈现出的上下调度线进行了有效划分。以天生桥一级水电站为对象进行了实例研究,结果证明了该方法的有效性与优越性。更多还原

【Abstract】 In the optimal operation of hydropower stations, an optimal decision obtained by deterministic optimization for a certain period is influenced by the inflow in the adjacent periods. Due to the instability of inflow, the operation rules for some periods often become extremely complicated, resulting in a difficulty in rule derivation. To solve this problem, this paper presents a new idea of extracting staged operation rules using explicit mechanism and a practical method that divides the scheduling period into two parts, a stable period and a transition period, according to the rule patterns throughout the scheduling period, and then adopts different method of rule derivation for each period. For the transition period, we introduced a strategy of period-by-period inflow classification for an effective division of the upper and lower scheduling lines obtained by optimal decision, based on the inflow characteristics. To verify the robustness of this method, a case study was made for the Tianshengqiao-I hydropower station, and results show that the method is effective and advantageous in derivation of operation rules.更多还原