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现货交易中梯级水电站竞价上网的研究 总被引:15,自引:5,他引:15
该文讨论了影响水电电价的水价及水电机组启停费用因素,提出了将水火电混合动力系统划分为两个独立的竟价子集,在各子集内部依据购电费用最低的原则竟价上网。求解过程首先按照水电配合火电竞价上网的方式,采用网络流法初步优化梯级水电站的出力;然后在梯级水电站竟价子集内部按照购电费用最低的原则竞价上网,采用同时段调整法优化水电的出力。该文提出的模型简单,算法易于实现。算例结果表明该方法具有良好的实用性。 相似文献
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An improved network flow algorithm, which includes the minimum cost network flow and the same period network flow, is proposed to solve the optimization of cascaded hydroelectric power plants in a competitive electricity market. The typical network flow is used to find the feasible flow and add the discharge water to different cascaded hydroelectric power plants at the same step. The same period network flow is used to find the optimal flow and add the power output at a different step. This new algorithm retains the advantages of the typical network flow, such as simplicity and ease of realization. The result of the case analysis indicates that the new algorithm can achieve high calculation precision and can be used to calculate the optimal operation of eascaded hydroelectric power plants. 相似文献
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