Integrated Short Circuit Ratio Strength Index Based on the Static Voltage Stability of the LCC-HVDC Systems

被引：0
|
作者：
Xiao H. [1 ]
Li Y. [1 ]
Duan X. [1 ]
Gole A.M. [2 ]
机构：
[1] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei Province
[2] Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg
来源：
Li, Yinhong (liyinhong@hust.edu.cn) | 1600年 / Chinese Society for Electrical Engineering卷 / 37期
关键词：
AC system strength; Critical integrated short circuit ratio (CISCR); Integrated short circuit ratio (ISCR); Line commutated converter based high voltage direct current (LCC-HVDC); Static voltage stability;
D O I：
10.13334/j.0258-8013.pcsee.162570
中图分类号：
学科分类号：
摘要：
Taking cognizance of the issue of lacking in rigorous theoretical background encountered by previous strength indices of the LCC-HVDC AC/DC system, the method for the definition of the strength index is studied based on the static voltage stability. Firstly, a quantitative assessment of the influence of the different control modes on the static voltage stability of the single-infeed LCC-HVDC AC/DC system is conducted. Then, an integrated short circuit ratio (ISCR) index is proposed to assess the system strength and its voltage stability margin. With the actual power flow information and DC power-voltage dynamic characteristics included, the index can be employed in all stages of planning, design and operation, and to study the influence of the different control modes on itself. Meanwhile, a critical integrated short circuit ratio (CISCR) index defined based on the static voltage stability limit is introduced to depict the critical voltage support strength. Furthermore, the proposed indices are validated by case studies and by comparison with other indices. © 2017 Chin. Soc. for Elec. Eng.
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页码：4008 / 4017
页数：9
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