Study on stability margin of ultra-low frequency oscillation in hydropower system

被引：2
|
作者：
Tang, Fan [1 ]
Zhang, Yudong [1 ]
Liang, Xiaobin [1 ]
Gong, Zhengyu [1 ]
Li, Xin [1 ]
Liu, Jiayu [1 ]
Ru, Hang [2 ]
Sun, Jian [2 ]
Li, Hongxun [2 ]
机构：
[1] Southwest Branch State Grid Corp China, 299 Shuxiu West Rd, Chengdu 610000, Peoples R China
[2] Southwest Jiaotong Univ, Sch Elect Engn, 999 Xian Rd, Xian, Peoples R China
来源：
ENERGY REPORTS | 2023年 / 9卷
关键词：
Hydropower units; Ultra-low frequency oscillation; Oscillation mode; Security domain; Stability margin;
D O I：
10.1016/j.egyr.2023.04.255
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In recent years, the ultra-low frequency oscillation of power system caused by hydropower units has occurred frequently. It is very important to study the ultra-low frequency oscillation characteristics of hydropower stations for the stable operation of power system. It is worth further research on how to determine the system stability margin in engineering practice. Based on the established model of single machine system with load, the analysis of the characteristic equation of closed-loop transfer function of single machine system shows that the ultra-low frequency oscillation will occur when the ratio of proportional parameter to integral parameter is too small. Based on the single machine with load system model and the equivalent single machine with load model of multi machine system, the ultra-low frequency oscillation mode of the system is analyzed by eigenvalue analysis method. According to the requirements of the damping ratio index, the security domain of the system ultra-low frequency oscillation is constructed, and the risk and stability margin of the system ultra-low frequency oscillation are evaluated by the characteristic values of the system ultra-low frequency oscillation mode. (c) 2023 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：41 / 48
页数：8
相关论文
共 50 条
  • [1] Study on stability margin of ultra-low frequency oscillation in hydropower system
    Tang, Fan
    Zhang, Yudong
    Liang, Xiaobin
    Gong, Zhengyu
    Li, Xin
    Liu, Jiayu
    Ru, Hang
    Sun, Jian
    Li, Hongxun
    ENERGY REPORTS, 2023, 9 : 41 - 48
  • [2] Study on Characteristics and Suppressing Countermeasures of Ultra-low Frequency Oscillation Caused by Hydropower Units
    Liu S.
    Wang D.
    Ma N.
    Deng W.
    Zhou X.
    Wu S.
    He P.
    Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2019, 39 (18): : 5354 - 5362
  • [3] Mechanistic Analysis of Ultra-Low-Frequency Oscillation Accompanied by Low-Frequency Oscillation in Hydropower System
    Sun, Weichao
    Ma, Zun
    2024 3RD INTERNATIONAL CONFERENCE ON ENERGY AND ELECTRICAL POWER SYSTEMS, ICEEPS 2024, 2024, : 564 - 567
  • [4] Analysis of the Influence of System Characteristics on Ultra-Low Frequency Oscillation
    Wu, Xuelian
    Li, Zhaowei
    Xu, Guang
    Liu, Fusuo
    PROCEEDINGS OF 2019 INTERNATIONAL FORUM ON SMART GRID PROTECTION AND CONTROL (PURPLE MOUNTAIN FORUM), VOL I, 2020, 584 : 299 - 309
  • [5] Ultra-low Frequency Oscillation Analysis and Location in Power System
    Li Y.
    Fu Y.
    Wang G.
    Wang D.
    Ai D.
    Li W.
    Dianwang Jishu/Power System Technology, 2023, 47 (05): : 1770 - 1779
  • [6] Equivalent circuit modelling of large hydropower plants with complex tailrace system for ultra-low frequency oscillation analysis
    Zheng, Yang
    Chen, Qijuan
    Yan, Donglin
    Zhang, Haiku
    APPLIED MATHEMATICAL MODELLING, 2022, 103 : 176 - 194
  • [7] Analysis of Ultra-Low Frequency Oscillation in Yunnan Asynchronous Sending System
    Chen, Yiping
    Liu, Yingshang
    Tang, Zhuoyao
    Hou, Jun
    Zhang, Yong
    Mo, Weike
    Chen, Haoyong
    2017 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, 2017,
  • [8] Stability Analysis of Ultra-low Frequency Oscillation and Governor Parameter Optimization for Multi-machine System
    Huang W.
    Duan R.
    Jiang C.
    Zhou J.
    Gan D.
    Dianli Xitong Zidonghua/Automation of Electric Power Systems, 2018, 42 (21): : 185 - 191
  • [9] On the mechanism and control for the ultra-low frequency oscillation in NY Power Grid with large-scale hydropower
    Ancheng Xue
    Jiawei Wang
    Chao Zheng
    Joe H. Chow
    Tianshu Bi
    Control Theory and Technology, 2019, 17 : 241 - 251
  • [10] On the mechanism and control for the ultra-low frequency oscillation in NY Power Grid with large-scale hydropower
    Xue, Ancheng
    Wang, Jiawei
    Zheng, Chao
    Chow, Joe H.
    Bi, Tianshu
    CONTROL THEORY AND TECHNOLOGY, 2019, 17 (03) : 241 - 251
12345