Response-based Branch Transient Transmission Capability Index and Transient Stability Emergency Control

被引：0

作者：

Zheng C. ^{[1
]}

Sun H. ^{[1
]}

Li H. ^{[1
]}

机构：

[1] China Electric Power Research Institute, Haidian District, Beijing

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2021年 / 41卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Branch transient transmission capability; Emergency control; Evaluation index; Transient stability; Voltage magnitude phase distribution;

D O I：

10.13334/j.0258-8013.pcsee.200969

中图分类号：

学科分类号：

摘要：

The deep adjustment of power supply, power grid and load structure make the disturbance behavior of the interconnected large power grid more and more complex. The profound changes of stability characteristics put forward new requirements for stability situation monitoring and emergency control technology. Firstly, this paper studied the spatial and temporal distribution characteristics of voltage amplitude and phase and the power transmission characteristics of different branches in the process of power angle swing of generators. An index of branch transient transmission capacity (BTTC) was constructed for continuous quantitative evaluation of transient stability, which has the advantages of single modulation of situation representation and criticality of judging instability. Based on the BTTC index, an emergency control strategy to reduce the risk of transient instability was proposed. The effectiveness of BTTC index and emergency control strategy is verified by simulation result got from the HVDC and ac hybrid china southern power system. © 2021 Chin. Soc. for Elec. Eng.

引用

页码：581 / 591

页数：10

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