电工技术学报  2018, Vol. 33 Issue (4): 739-749    DOI: 10.19595/j.cnki.1000-6753.tces.161718
电力系统及其自动化 |
基于相关增益的电压稳定关键注入区域识别
李雪1, 姜涛1, 李国庆1, 贾宏杰2, 侯恺2
1. 东北电力大学电气工程学院 吉林 132012;
2. 天津大学智能电网教育部重点实验室 天津 300072;
Voltage Stability Critical Injection Area Determination via Cross-Relative Gain
Li Xue1, Jiang Tao1, Li Guoqing1, Jia Hongjie2, Hou Kai2
1. Department of Electrical Engineering Northeast Electric Power University Jilin 132012 China;
2. Key Laboratory of Smart Grid of Ministry of Education Tianjin University Tianjin 300072 China;
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摘要 提出一种识别影响电力系统电压稳定关键节点的关键注入区域新算法。计算系统各节点的电压稳定指标,确定系统电压稳定关键节点。以电压稳定关键节点为关键注入区域的主导节点,借助相关增益矩阵的相关性质,识别与系统中各电压稳定主导节点存在强电压耦合关系的负荷节点和发电机节点,构建含电压稳定主导节点的电压稳定关键注入区域;针对所得注入区域,给出系统稳态和紧急情况下改善系统电压稳定性的相关控制策略。将所提方法应用于New England 39节点系统中,分析、对比结果验证了所提方法的正确性和有效性。最后将该方法应用于波兰电网中,验证了该方法的实用性。
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李雪
姜涛
李国庆
贾宏杰
侯恺
关键词 电压稳定电压稳定指标相关增益电压耦合    
Abstract:This paper proposes a novel method for identifying the voltage stability critical injection areas (VSCIA) that impact the voltage stability of critical nodes in power systems. The voltage stability critical nodes are identified through the voltage stability index (VSI). Considering the voltage critical nodes as the pilot buses of VSCIAs, the load and generator nodes that have strong voltage coupling with the pilot buses are identified according to the cross-relative gain (CRG) and then the VSCIAs containing the voltage stability pilot buses are constructed. Moreover, based on the practical VSCIAs, a voltage control strategy under steady state and emergency conditions is proposed to improve the voltage stability of the system. Finally, the effectiveness of the proposed method is demonstrated in the New England 39-bus system. Besides, the method is further applied in the Polish power grid to verify its feasibility and practicality in bulk power systems.
Key wordsVoltage stability    voltage stability index    relative gain    voltage coupling   
收稿日期: 2016-10-30      出版日期: 2018-03-05
PACS: TM712  
基金资助:国家自然科学基金资助项目(51677022、51607033、51607034)
作者简介: 李雪 女,1986生,博士,副教授,研究方向为电力系统高性能计算、电力系统安全性与稳定性。E-mail: xli@neepu.edu.cn; 姜涛 男,1983生,博士,副教授,研究方向为电力系统安全性与稳定性、新能源集成。E-mail: t.jiang@aliyun.com(通信作者);
引用本文:   
李雪, 姜涛, 李国庆, 贾宏杰, 侯恺. 基于相关增益的电压稳定关键注入区域识别[J]. 电工技术学报, 2018, 33(4): 739-749. Li Xue, Jiang Tao, Li Guoqing, Jia Hongjie, Hou Kai. Voltage Stability Critical Injection Area Determination via Cross-Relative Gain. Transactions of China Electrotechnical Society, 2018, 33(4): 739-749.
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