Optimal Design Method of Flexible Excitation System for Improving Power System Stability

被引：7

作者：

Zhang, Tiantian ^{[1
]}

Cheng, Liping ^{[1
]}

He, Silin ^{[1
]}

Yu, Minghao ^{[1
]}

Mao, Chengxiong ^{[1
]}

Wang, Dan ^{[1
]}

Zhang, Jiancheng ^{[2
]}

Han, Bing ^{[3
]}

Tao, Zheng ^{[3
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Sch Elect & Elect Engn, Wuhan 430074, Peoples R China

[2] State Grid Zhejiang Elect Power Res Inst, Hangzhou 310014, Peoples R China

[3] NR Elect Co Ltd, Nanjing 211000, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2021年 / 57卷 / 03期

基金：

国家重点研发计划;

关键词：

Damping; Torque; Power systems; Power system stability; Oscillators; Reactive power; Generators; flexible excitation system; full frequency range; low frequency oscillation; reactive power damping controller; WIND;

D O I：

10.1109/TIA.2021.3057346

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Providing sufficient damping over the full frequency range of low-frequency oscillation (LFO) is a challenge in modern power systems. The flexible excitation system with two damping channels, controlled by the power system stabilizer (PSS) and the reactive power damping controller (RPDC), respectively, provides a new way to solve this problem. The controller structures of the flexible excitation system are studied, in which a novel structure is adopted in RPDC to enhance the damping over the lower frequency range of LFO. The controller parameters design method of the flexible excitation system is also proposed: the phase compensation method is employed to design the time constants of PSS and RPDC; and the gains of them are adjusted based on their critical values. A single machine-infinite bus system in a real-time digital system and a system considering the doubly-fed wind generator are simulated to verify the effectiveness of the flexible excitation system on improving the power system stability.

引用

页码：2120 / 2128

页数：9

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