Security constrained optimal power flow for the evaluation of transmission capability on Korea electric power system

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Pub Date : 2001-07-15 DOI:10.1109/PESS.2001.970224

D. Hur, Jong-keun Park, B.H. Kim, K. Son

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引用次数: 28

Abstract

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 only the security constraints imposed on the tie-lines into account. In this study, 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 maximum secure transfer capability of tie-lines joining two regions is solved in such a way that the transmission system can also stay within limits in the event of turning generation units off when they are not needed. A description on the inclusion of security constraints with distributed optimal power flow algorithm is given, followed by case studies for Korea power system.

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韩国电力系统输电能力评估的安全约束最优潮流

本文提出了一种在分散框架下并行求解安全约束最优潮流(SCOPF)问题的算法，该算法使用基于价格的机制将每个区域建模为一个经济单元。首先求解分布式最优潮流(OPF)问题，仅考虑各联络线的安全约束，确定相邻区域间各联络线的最大安全同步传输能力。在本研究中，使用在当前状态下计算的线路中断分配因子(LODF)来制定附加约束。确定各联络线的安全输电能力后，求解连接两个区域的联络线的最大安全输电能力，使在不需要发电机组关机的情况下，输电系统也能保持在限制范围内。介绍了分布式最优潮流算法中包含安全约束的问题，并对韩国电力系统进行了实例分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262)

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