机组发电成本曲线的相关研究

Relevant Research on the Generating Cost Curve of Units

在当前已提出的电力市场定价方法中 ,一般都以机组在某一时段内的平均发电成本作为竞价参数 ,它只是对边际成本定价的一种近似。为了较好地接近实际情况采用了 U型边际成本曲线进行分析。同时考虑到电力市场的特殊性 ,将电网约束条件引入价格模型 ,综合各机组的可供负荷情况 ,得出求解市场价格的计算表达式。

There existed several pricing methods for power market.The usual methods are used the average generating cost during a period as the bidding parameters,which are approximate.In order to reflect the essence,this paper's analysis is based on a U shaped marginal cost curve.Considering the difference of power markets,it's necessary to introduce the restrictions of power system into pricing method.Every unit's available loads are got under the grid constraints.The expression of price is finally obtained.