多馈入直流系统广义短路比定义与理论分析.pdf

第36 卷 第3 期 中 国 电 机 工 程 学 报 Vol.36 No.3 Feb. 5, 2016 2016 年2 月5 日 Proceedings of the CSEE ©2016 Chin.Soc.for Elec.Eng. 633 DOI ：10.13334/j.0258-8013.pcsee.2016.03.006 文章编号：0258-8013 (2016) 03-0633-15 中图分类号：TM 723 多馈入直流系统广义短路比：定义与理论分析 1 1 2 1 3 辛焕海 ，章枫 ，于洋 ，甘德强 ，徐谦 (1．浙江大学电气工程学院，浙江省 杭州市 310027 ；2．国网北京经济技术研究院，北京市 昌平区 102209 ； 3．国网浙江省电力公司经济技术研究院，浙江省 杭州市 310006) Generalized Short Circuit Ratio for Multi-infeed DC Systems: Definition and Theoretical Analysis 1 1 2 1 3 XIN Huanhai , ZHANG Feng , YU Yang , GAN Deqiang , XU Qian (1. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang Province, China; 2. State Power Economic Research Institute, Changping District, Beijing 102209, China; 3. Zhejiang Research Institute of Electric Economic Technology, Hangzhou 310006, Zhejiang Province, China) ABSTRACT: The relationship between the short circuit ratio 定义下的 GSCR 能更准确地描述多馈入系统受端交流电网 (SCR) and static voltage stability is analyzed in this paper for 的强度。 multi-infeed DC systems (MIDC). A new concept named 关键词：多馈入直流系统；多馈入短路比；广义短路比；交 generalized short circuit ratio (GSCR) has been proposed to 流电网强度 exactly depict the strength and voltage stability of AC-DC systems according to the eigenvalue decomposition method, 0 引言 which can overcome the unclear physical mechanism of the traditional multi-infeed