中国电力 ›› 2020, Vol. 53 ›› Issue (3): 28-34,65.DOI: 10.11930/j.issn.1004-9649.201911070

• 新能源电力系统源网荷储协调运行技术专栏 • 上一篇    下一篇

特高压近区风电汇集地区次同步振荡特征及防控措施

王胜利1,2, 许刚1   

  1. 1. 华北电力大学 电气与电子工程学院, 北京 102206;
    2. 国网新疆电力有限公司, 新疆 乌鲁木齐 830002
  • 收稿日期:2019-11-13 修回日期:2019-12-30 发布日期:2020-03-10
  • 作者简介:王胜利(1978-),男,高级工程师,从事新能源并网技术、智能电网信息处理研究,E-mail:602864551@qq.com;许刚(1963-),男,博士后,教授,博士生导师,从事智能电网信息处理、电气信息技术研究,E-mail:xugang@ncepu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(U1866204)

Subsynchronous Oscillation Features and Control Measures for Wind Power Influx Area near HVDC

WANG Shengli1,2, XU Gang1   

  1. 1. School of Electrical and Electronic, North China Electric Power University, Beijing 102206, China;
    2. State Grid Xinjiang Electric Power Co., Ltd., Urumchi 830002, China
  • Received:2019-11-13 Revised:2019-12-30 Published:2020-03-10
  • Supported by:
    This work is supported by National Natural Science Foundation of China (No.U1866204)

摘要: 特高压近区的新能源汇集区域中,广泛使用的电力电子设备容易产生大量次同步谐波,引发电力系统次同步振荡现象。以新疆哈密±800 kV特高压近区的风电集中接入地区次同步案例为切入点,开展振荡特征和振荡关联因素分析,提出次同步振荡监测、控制、抑制3项措施。经实际应用表明,监测及控制系统可有效监控振荡发生,并抑制直流近区风电汇集区域的次同步振荡发生,提高电网的运行可靠性。

关键词: 风电, 特高压, 次同步振荡, 监测系统, 安全控制装置

Abstract: The power electronic devices which are widely used in wind power influx area, especially near the HVDC area, can easily produce a large number of subsynchronous harmonic. According to the subsynchronous oscillation problem that emerged in the wind power integration areas near the ±800 kV HVDC in Hami, Xinjiang, the oscillation features and influence factors are analyzed to propose three measures to monitor, control and prevent subsynchronous oscillation. Experimental results show that the subsynchronous oscillation can be accurately detected by using the monitoring system and effectively prevented by taking the control measures, ensuring stable operation of the power grid.

Key words: wind power, HVDC, subsynchronous oscillation, monitoring system, safety control device