采用最优潮流计算华东电力市场稳定限额因子的方案研究  

Calculation of stability limit factors for East China Electricity market by using optimal power flow

作　　者：黄涛[1] 严正[1] 刘福斌 杨立兵 

机构地区：[1]上海交通大学电气工程系,上海200240 [2]华东电力交易中心,上海200002

出　　处：《华东电力》2007年第12期29-34,共6页East China Electric Power

摘　　要：稳定限额因子是华东电力市场中用于评价关键输电通道的安全裕度的重要指标。以最优潮流(OPF)为工具,将线路的稳定限额看作是基准传输容量限值与稳定限额因子的乘积,通过增广拉格朗日函数对线路稳定限额因子的导数描述了系统购电成本的变化与线路稳定限额因子和线路基准稳定限额乘积的关系。指出该值代表了稳定限额因子的经济价值,不同的稳定限额因子同时表明了系统所处的安全水平。基于此,给出了华东区域电力市场计算稳定限额因子的实施建议,并通过IEEE-9节点系统验证了结论的正确性与实施方案的可行性。The stability limit factor is an important index to evaluate the safety of key transmission lines in East China Electricity Market. By using the optimal power flow （ OPF）, the relation between the electricity purchasing cost change and the line stability limit which is the product of the stability limit factor and the basic stability limit of the line, is described by the derivative of the augmented lagrangian function with respect to the line stability limit factor. It is pointed out that the value reveals the economic worthy of the stability limit factor, and various stability limit factors display the safety level of the system. Based on that, the implement suggestions on stability limit factor calculation in East China Electricity Market are proposed, and the IEEE-9-bus system was used to prove the methodology correct and practical.

关 键 词：最优潮流 稳定限额因子 购电成本 华东电力市场 

分 类 号：TM732[电气工程—电力系统及自动化]