电力市场改革过程中,市场力和市场效率问题是影响改革效果的两个重要方面。输电阻塞的存在阻碍了区域间电能的有效传输,使得电力资源无法得到最优化配置,进一步影响发电商的市场力和电力市场效率。本文运用节点价格偏移指数和利润偏移指数指标,研究了输电阻塞对发电商市场力的影响,以及发电商基于输电阻塞的策略性竞价;运用福利损失率等经济学指标对输电阻塞下的电力市场效率进行了分析。采用MATPOWER软件包在MATLAB平台上对IEEE30节点系统进行了模拟,定量分析了输电阻塞和发电商策略性竞价对市场效率和市场力造成的影响。
In the process of China' s power market reform, market power and market efficiency affect the reform result significantly. For the transmission congestion, the system resources can't be distributed efficiently, and then affect the market efficiency. The power market efficiency is analyzed through using benefit -loss index and deviation index, and the effect of transmission congestion and bidding strategy on market efficiency are studied. In the end, this paper makes quantitative analysis of the power market efficiency and market power by simulating the IEEE30 system using MATPOWER software package based on the MATLAB software.