电力市场中的市场力分层评价指标体系

Layered Index System for Evaluating the Market Power in Electricity Market

对现有的市场力度量指标进行了补充和改进,提出了一种基于物理潮流分析的同时面向市场和面向发电公司的市场力分层评价指标体系,并将网损和区域间功率交换考虑其中,通过跟踪系统、区域、节点三个层次上的实时的市场力指标变化曲线,可以反映地理位置、网络约束、运行方式等因素对发电商行使市场力的影响,可用于辅助监管部门评价和分析电力市场中潜在的市场力水平,并对电网公司改善网络结构,缓解由于网络约束造成的市场力具有一定指导意义。

The exiting market power evaluation indexes are improved, based on physical power flow analyzing, a layered index system for evaluating the market power level of the whole electricity market and specified generation company is put forward which has considered the influence of transmission loss and power exchange among different load or congestion areas. Through establishing and tracking the index curves on three levels of system, area and node in real time, it can reflect the influence factors of electrical position, network restriction, operation mode etc., which may affect generation companies to exert the market power. The Index system can be used to assist the supervision department to evaluate and analyze the potential market power degree in electricity market, and help power grid companies improve network structure to alleviate the market power caused by network restrains.