中国电力 ›› 2020, Vol. 53 ›› Issue (10): 192-199.DOI: 10.11930/j.issn.1004-9649.201905038

• 电网 • 上一篇    下一篇

基于GOOSE通信的分布式接地选线应用

陈宏山1, 余江1, 姜淼2, 石勇2, 侯炜2   

  1. 1. 中国南方电网有限责任公司,广东 广州 510663;
    2. 南京南瑞继保工程技术有限公司,江苏 南京 211102
  • 收稿日期:2019-05-08 修回日期:2019-07-16 发布日期:2020-10-05
  • 作者简介:陈宏山(1979—),男,高级工程师,从事电力系统继电保护运行管理工作,E-mail:chenhs@csg.cn;余江(1975—),女,高级工程师(教授级),博士,从事电力系统继电保护技术管理工作,E-mail:yujiang@csg.cn;姜淼(1989—),男,通信作者,工程师,从事新能源接入电网、继电保护、电网规划等研究,E-mail:nanjingjiangmiao@yeah.net
  • 基金资助:
    中国南方电网有限责任公司科技项目(提高设备综合运行效益的35 kV及以下保护测控装置标准化关键技术研究,ZDKJXM20160007)

Application Study of Distributed Grounding Line Selection Method Based on GOOSE Communication

CHEN Hongshan1, YU Jiang1, JIANG Miao2, SHI Yong2, HOU Wei2   

  1. 1. China Southern Grid Co., Ltd., Guangzhou 510663, China;
    2. NR Engineering Co., Ltd., Nanjing 211102, China
  • Received:2019-05-08 Revised:2019-07-16 Published:2020-10-05
  • Supported by:
    This work is supported by Science and Technology Project of China Southern Power Grid Corporation (Research on Key Technologies for Standardization of 35 kV and Below Protection and Control Devices for Improving Overall Operation Efficiency of Equipment, No.ZDKJXM20160007)

摘要: 介绍了一种基于GOOSE通信的分布式接地选线方法,并在继电保护装置中应用。小电流接地系统中发生单相接地故障时,由于消弧线圈的投入,导致故障电流较小,常规的稳态判断方法很难起作用。采用小波分解算法可以捕捉接地瞬间产生的暂态分量,迅速准确地识别出接地线路。利用站控层GOOSE可以在多个装置之间实现数据共享,然后利用小波算法就地判断故障。MATLAB仿真验证了该算法的有效性,采用此算法的微机保护装置经过实时数字仿真系统(real time digital simulation system, RTDS)实验验证了其有效性和实用性。

关键词: 分布式, 接地选线, 小波分析, GOOSE, 故障诊断与定位

Abstract: A GOOSE communication-based distributed grounding line selection method is introduced and implemented in the relay protection device. When a single-phase grounding fault happens in the small current grounding system, the fault current is quite small due to the switching of arc-extinguish coil, which makes it difficult to recognize the fault line using the conventional steady-state discrimination method. The wavelets decomposition algorithm is utilized to discriminate the transient component of current and to recognize the grounding line rapidly and accurately. The GOOSE communication of the station control layer is used to share information among several devices, and the wavelets algorithm is used to discriminate the fault line locally. The algorithm is proved feasible through MATLAB simulation, and the microprocessor protection device embedded in the algorithm is validated in the RTDS test.

Key words: distributed, grounding line selection, wavelets analysis, GOOSE communication, fault diagnosis and positioning