中国电力 ›› 2013, Vol. 46 ›› Issue (10): 35-40.DOI: 10.11930/j.issn.1004-9649.2013.10.35.5

• 电网 • 上一篇    下一篇

地区电网高频切机优化及与超速保护的配合

杨帆1, 张志强2, 赵书强1, 吴丽华2, 何嘉勇3   

  1. 1. 华北电力大学 电气与电子工程学院,河北 保定 071003; 2. 中国电力科学研究院,北京 100192; 3. 新疆天富热电股份有限公司,新疆 石河子 832000
  • 收稿日期:2013-05-15 出版日期:2013-10-23 发布日期:2015-12-10
  • 作者简介:杨帆(1989—),女,河北保定人,硕士研究生,从事电力系统规划与可靠性研究。

Configuration Scheme of Over-Frequency Tripping and Coordination with Over-Speed Protection Controller (OPC) of Regional Grid

YANG Fan1, ZHANG Zhi-qiang2, ZHAO Shu-qiang1, WU Li-hua2, HE Jia-yong3   

  1. 1. College of Electric and Electronic Engineering, North China Electric Power University, Baoding 071003, China; 2. China Electric Power Research Institute, Beijing 100192, China; 3. Xinjiang Tianfu Thermoelectric Co., Ltd, Shihezi 832000, China
  • Received:2013-05-15 Online:2013-10-23 Published:2015-12-10

摘要: 分析地区电网与主网解列后孤网运行时的频率特性,指出影响孤网频率的主要因素为功率不平衡量和系统惯量。针对新疆石河子电网可能出现的高频问题,通过高频切机配置方案研究及高频切机与火电机组超速保护控制器(OPC)的协调配合研究,提出适应于地区电网的高频切机方案,以及应优先采用高频切机来抑制频率升高,尽量避免OPC反复动作的配置原则。

关键词: 地区电网, 频率稳定, 高频切机, 超速保护控制器(OPC)

Abstract: By analyzing frequency characteristics of a regional grid under the isolated operation condition, the main factors influencing the islanding frequency are identified to be the unbalance of the power and the inertia of the grid. In order to solve the possible problem of over-frequency during the isolated operation of a real grid, the paper analyzes the configuration solution of over-frequency tripping and its coordination with an over-speed protection controller(OPC), and proposes the configuration scheme of over-frequency generator- tripping which is of good adaptability for other regional grids and the configuration principles which require to curb the frequency increase preferentially and avoid the repeating actions of the OPC.

Key words: regional grid, frequency stability, over-frequency generator-tripping, over-speed protection controller (OPC)

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