摘要
将导致潮流无解的故障的联动切负荷方案分解成恢复潮流解和切负荷量优化2个子问题。为恢复故障后的潮流可解性,提出了一种快速恢复潮流解的切负荷算法,进而利用基于灵敏度的线性优化消除恢复潮流解后的系统越限现象;若恢复潮流解后系统不存在越限现象则通过扩展潮流方程减少切负荷量。IEEE24节点和我国某实际682节点系统的算例表明本文所提方法简单、有效。
The new approach proposed in this paper divides load shedding schedule for unsolvable cases into two sub-problems, i.e. restoring solvability and alleviating operating limit violations. In the first step a load shedding method for restoring power flow solvability is proposed. In the second step the additional load shedding is calculated based on linear optimization to alleviating operating limit violations. For case without operational limit violations after restoring solvability, the load shedding is optimized by augmented power flow. The simulation results of IEEE 24-bus system and a practical 682-bus, 973-branch system indicated that this method is simple and effective.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第9期82-86,共5页
Proceedings of the CSEE
基金
国家重点基础研究专项经费项目(2004CB217905)~~
关键词
电力系统
静态安全分析
潮流的可解性
切负荷
power systems
static state security analysis
power solvability
load shedding
