| 用潮流追踪研究电力市场中的市场力 |
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| 引用本文： | 汪穗峰,任震,黄福全,高志华. 用潮流追踪研究电力市场中的市场力[J]. 广东电力, 2003, 16(5): 1-5 |
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| 作者姓名： | 汪穗峰 任震 黄福全 高志华 |
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| 作者单位： | 华南理工大学,电力学院,广东,广州,510640 |
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| 基金项目： | 广东省自然科学基金资助项目(000397) |
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| 摘 要： | 在研究电力市场中的市场力的时候，经常使用经济学中的市场集中度指标(HHI)为市场力甄别的一个基准或市场力检测的粗略扫描工具。直接应用传统的HHI分析电力市场中的市场力具有很多不足之处。例如不能计及网络运行状态、输电阻塞的影响等。针对这种情况，结合电力系统特殊性，提出了基于潮流追踪方法计算HHI的概念和设想，并提出了NHHI和SHHI两个指标。应用一个19节点26条支路的电力系统，进行计算分析，验证了所提出的方法的有效性和实用性。
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| 关 键 词： | 电力工业 电力市场 经济学 市场力 潮流 市场价格 电价 |
| 文章编号： | 1007-290X(2003)05-0001-05 |
| 修稿时间： | 2003-05-14 |
Use Power Flow Tracing to Study Market Power in Electricity Market |
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| WANG Sui-feng,REN Zhen,HUANG Fu-quan,GAO Zhi-hua. Use Power Flow Tracing to Study Market Power in Electricity Market[J]. Guangdong Electric Power, 2003, 16(5): 1-5 |
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| Authors: | WANG Sui-feng REN Zhen HUANG Fu-quan GAO Zhi-hua |
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| Abstract: | HHI (Herfindahl-Hirschman Index) is often used as an identification threshold or scanning tool when studying market power in electricity market. Nevertheless the direct application of HHI into electricity market has several disadvantages such as the inability of considering network operation state,and the effects of transmission congestion,etc. An index based on power flow tracing for measuring market power in electricity market is presented. This index derives from HHI idea of economic theory,and is properly modified to reflect the operation state of power network,especially the effects of transmission congestion. The simulation results show that the index presented is both reasonable and effective. |
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| Keywords: | electricity market market power HHI power flow tracing |
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