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Application of Distributed Optimal Power Flow to Power System Security Assessment

机译:分布式最优潮流在电力系统安全评估中的应用

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摘要

This paper presents an algorithm for the parallel solution of the security constrained optimal power flow (SCOPF) problem in a decentralized framework, consisting of regions, using a price-based mechanism that models each region as an economic unit. We first solve the distributed optimal power flow (OPF) problem to determine the maximum secure simultaneous transfer capability of each tie-line between adjacent regions by taking into account only the security constraints imposed on the tie-lines. In this article, the line outage distribution factors (LODF) calculated at the current state are used to formulate the appended constraints. Once the secure transfer capability of each tie-line is determined, the intraregional SCOPF is performed using the conventional linear programming (LP) approach. A description of the inclusion of security constraints with the distributed optimal power flow algorithm will be given, followed by the case studies for Korea Electric Power System.
机译:本文提出了一种使用基于价格的机制将每个区域建模为经济单位的,由区域组成的分散框架中的安全约束最优潮流(SCOPF)问题的并行解决方案的算法。我们首先解决分布式最优潮流(OPF)问题,通过仅考虑施加在联络线上的安全约束来确定相邻区域之间每条联络线的最大安全同时传输能力。在本文中,使用当前状态下计算的线路中断分布因子(LODF)来表示附加的约束。一旦确定了每个联络线的安全传输能力,就可以使用常规的线性规划(LP)方法执行区域内SCOPF。将给出对安全约束与分布式最优潮流算法的结合的描述,然后针对韩国电力系统进行案例研究。

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