成本分解的输电定价新方法

应用边际成本法的理论，提出一种新的输电定价方法。该方法构造了以发电运行费用量小为目标函数的线性规划模型，通过求解各约束条件的影子值，获得各线路的输电运行费率。根据各用户的变电装见容量来分配电网的线路容量费；采用潮流跟踪法分析用户对电网的使用情况用来分配电网的线路运行费。本方法半线路的容量费和运动费分别分摊，明确了电网容量和运动成本与用户接入和使用的对应关系，避免了在用户间的不合理分摊。以一个实例验证了本方法的可行性，并揭示了输电定价的一些规律。

New Method of the Transmission Pricing Based on Cost Decomposition

A new method of the transmission pricing based on marginal cost theory is presented. A linear programming model is proposed to minimize the generation cost and the operation cost of every transmission line is got by calculating the lambda prices corresponding to the constrains. The fixed cost of transmission lines is shared by the consumers based on their installed transformer capacities and the operation cost of transmission lines is distributed among consumers based on capacity use of electricity tracing method. The method is provided to decompose the transmission costs into capacity costs and operation costs that correspond to the loads connection and usage to avoid the irrational allocation of the transmission costs among the consumers. An example is given to demonstrate the validity of the proposed method and some conclusions are finally given.