Coordinated control of STATCOM and generator excitation

被引：0
|
作者：
Xie, Xiaorong [1 ]
Cui, Wenjin [1 ]
Tang, Yiliang [1 ]
Han, Yingduo [1 ]
机构：
[1] Tsinghua Univ, Beijing, China
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2001年 / 25卷 / 05期
关键词：
Algorithms - Electric excitation - Electric generators - Feedback control - Mathematical models - Optimal control systems - Simulation - Voltage regulators;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A unified state-space system model is established for a single-machine infinite-bus power system with STATCOM. Based on the theory and algorithm of information-structure-constrained linear quadratic (LQ) optimal control, four coordinated control strategies are obtained. They are state-feedback decentralized coordinated control, output-feedback decentralized coordinated control, LQ coordinated control constrained by a given information structure where generator's angular frequency deviation can be used in controlling STATCOM, and a centralized full-scale state-feedback coordinated control. Simulation results show that the four controllers are superior to the separately designed AVR/PSS excitation controller and PI STATCOM voltage regulator in enhancing system transient and steady-state performance. At the same time, the decentralized state and output-feedback coordinated control, schemes, though inferior to the other two coordinated control schemes, are more applicable because of their low cost and high reliability. This project is supported by National Natural Science Foundation of China (No. 59877011).
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页码：19 / 22
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