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中文摘要：
为了分析超高压输电线路对我国实施西电东送工程、构建全国性电力市场的影响。本文基于地理位置和电网运输成本约束条件，提出一个基于多主体的发电商动态演化博弈仿真模型。在仿真模型中，假定在一个二维平面中均匀分布多个相互分割的垄断市场，在矿产资源地分布着对应的发电商，发电商可以在不同的市场中分别进行产量和价格决策，以使其总体利润最大化。通过仿真发现，每个发电商都存在一个明显的垄断区域，随着输电成本的降低，各个发电商的垄断区域边界开始交叉；并且交叉区域随着输电成本逐渐降低而进一步扩大；当输电成本为零时，则发电商的不存在垄断区域。仿真结果可以解释为什么当前我国农村电价远高于城市电价，而许多发电商仍不愿意向农村供电。并得到以下结论：增大发电商市场规模，会促进发电商在垄断边界处的竞争，在一定程度上缓解电力紧张的局面，但不能从根本上解决发电商在电力市场中的垄断市场力。电力市场中电网运输成本是发电商实施垄断市场力的重要因素。超高压输电线路对我国构建全国和区域性电力市场具有重要影响。
英文摘要：
To analyze on the influence of EHV transmission line on West-to-east power transmission and theconstruction of power markets in China, according to the geographical location and the constraints of the power network transportation cost, we propose a simulation model of dynamic evolution game based on multi-agent, in which, it is supposed that various inter-divided monopolistic markets are evenly distributed in a two-dimensional plane. In correspondence with the markets, generation companies are distributed beside the mineral resources. To maximize the overall profit, generation companies can make the output and price decision respectively. Simulation explains the following phenomena ： why do the generation companies not want to supply the electricity power to rural network, while the price of rural network is much higher than that in a city network. Generation companies have much monopoly ability in their region. The newly-built units can not alleviate the tense of power supply. When the market scale of generation companies is quite large, generation companies will occupy the market with low price and sale with high price. We can draw some conclusion： network transportation cost is an inevitable natural factor to monopolistic market. To reduce the transportation cost by new technology can effectively restrain the market power. Increase the number of the power plants can alleviate the situation of power supply to a certain degree, but it can not fundamentally eliminate the market power.
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