A Decentralized and Coordinated Control of Emergency Demand Response to Improve Short-term Frequency Stability

被引：0
|
作者：
Wang L. [1 ]
Li H. [1 ]
Xie X. [1 ]
机构：
[1] State Key Lab of Control & Simulation of Power Systems & Generation Equipment, Dept. of Electrical Engineering, Tsinghua University, Haidian District, Beijing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷 / 11期
基金：
中国国家自然科学基金;
关键词：
(U)HVDC; Bipolar trip; Decentralized coordinated control; Emergency demand response; Short-term frequency stability;
D O I：
10.13334/j.0258-8013.pcsee.191675
中图分类号：
学科分类号：
摘要：
Short-term frequency stability is a big threat to the security of receiving-end power systems with multi-infeed (ultra) HVDCs. The emergency demand response (EDR) offers a potential to address this issue. However, the centralized EDR control is heavily dependent on high-speed communication and thus expensive; while the previously developed decentralized EDR control has inferior accuracy. This paper proposed a novel decentralized and coordinated EDR control, which integrates decentralized and centralized decision-making strategies through slow communication infrastructure. The consistency in rate of change of frequency measured at difference buses was employed to achieve coordinated optimization of multiple EDRs without real-time information exchange. The performance of the proposed control has been verified with time-domain simulations on a typical receiving-end power system. © 2020 Chin. Soc. for Elec. Eng.
引用
收藏
页码：3462 / 3469
页数：7
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