计及输电约束的区域双边电力市场LSFE分析

LSFE Analysis for Regional Bilateral Electricity Markets Considering Transmission Constraints

建立了一个能考虑输电网络约束的区域双边电力市场线性供应函数均衡(LSFE)模型，并分析了在传输线路发生不同阻塞情形时，有套利和无套利不同的假设对发电商市场力、市场平均电价和网络所有者的不同影响。采用基于非线性互补方法的改进的 Levenberg-Marquardt 算法来求解均衡解。30节点的 IEEE 测试系统计算结果表明，套利者的出现可以起到降低市场电价、限制发电商市场力的作用，同时有利于整个市场社会福利和消费者利益的提升。

Linear supply function equilibrium (LSFE) model considering transmission constraints for regional bilateral electricity power market is developed in this paper. Based on this model, it has been analyzed that under different transmission constraints the arbitrager can exert different influence on many facts of the power market such as the market power of suppliers, the average price of the regional bilateral electricity markets and the network holder. An inexact Levenberg-Marquardt algorithm based on the nonlinear complementary approach is used to solve the equilibrium solution. IEEE 30-bus test system is employed as an example, and the computational results show that the existence of arbitragers in the regional bilateral electricity markets can reduce the market price, restrict the market power of suppliers, meanwhile. It can also promote the total social welfare of markets and the consumer surplus.