南方电网技术2017，Vol.11Issue(10)：74-86,13.DOI:10.13648/j.cnki.issn1674-0629.2017.10.007
基于耦合单端口网络理论的广域负荷裕度灵敏度及其在电压稳定控制中的应用
Coupled Single-Port Circuit Concept Based Wide-Area Load Margin Sensitivity and Its Application on Voltage Stability Control
袁昊宇 1李方兴 2姜涛 1贾宏杰3
作者信息
- 1. 田纳西大学电气工程与计算机科学系,美国,田纳西州诺克斯维尔市37996
- 2. Peak Reliability,美国,科罗拉多州拉夫兰市80538
- 3. 东北电力大学电气工程学院,吉林吉林132012
- 折叠
摘要
Abstract
Loading margin sensitivity analyses are often performed for voltage stability assessment (VSA) and control due to the complexity of such applications.Traditional power system algebraic model based loading margin sensitivity analyses require full detailed system models and non-trivial amount of computation,therefore they are not good candidate for online applications.Based on the coupled single-port circuit concept,this paper proposes a new method of measurement-based wide-area loading margin sensitivity (WALMS) for VSA and control that is suitable for online applications.Enabled by wide-area measurement systems and their measurements,the proposed model derives the analytical expression of the sensitivity of loading margin (LM) versus active power injection,reactive power injection and generator terminal voltage.Consequently,the WALMS is computational more efficiently than its modelbased counterparts.Based on the WALMS,a multi-step control strategy is developed to improve voltage stability.Simulation results on the IEEE 39-bus system verify the WALMS and validate the multi-step control strategy benchmarked with traditional continuation power flow when system is close to voltage collapsing point.Further tests on the IEEE 14,57 and 300-bus systems are performed to demonstrate the applicability of the WALMS.Evidently,the multiple simulations results show that the measurement-based WALMS has great potential to be integrated to online VSA and control applications.关键词
电压稳定评估/电压稳定控制/负荷裕度灵敏度/耦合单端口网络/广域量测系统Key words
voltage stability assessment/voltage stability control/loading margin sensitivity/coupled single-port circuit/wide-area measurement systems分类
信息技术与安全科学引用本文复制引用
袁昊宇,李方兴,姜涛,贾宏杰..基于耦合单端口网络理论的广域负荷裕度灵敏度及其在电压稳定控制中的应用[J].南方电网技术,2017,11(10):74-86,13.
