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
收藏
页码：2120 / 2128
页数：9
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