中国电力 ›› 2014, Vol. 47 ›› Issue (2): 69-72.DOI: 10.11930/j.issn.1004-9649.2014.2.69.3

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基于PSCAD/EMTDC的HVDC接地极线路故障仿真

王彩芝1, 姜映辉1, 王俊江2, 李京1, 2   

  1. 1. 山东理工大学 智能电网研究中心,山东 淄博 255049;
    2. 山东科汇电力自动化有限公司,山东 淄博 255087
  • 收稿日期:2013-12-08 出版日期:2014-02-28 发布日期:2015-12-18
  • 作者简介:王彩芝(1987-),女,山东临沂人,硕士研究生,从事电力系统故障监测研究。E-mail: 809586109@qq.com

PSCAD/EMTDC-Based Simulation Research on HVDC Grounding Line Fault

WANG Cai-zhi1, JIANG Ying-hui1, WANG Jun-jiang2, LI Jing1, 2   

  1. 1. Smart Grid Research Center, Shandong University of Technology, Zibo 255049, China;
    2. Shandong Kehui Power Automation Co., Ltd., Zibo 255087, China
  • Received:2013-12-08 Online:2014-02-28 Published:2015-12-18

摘要: 目前对接地极线路的故障保护研究还不够全面,在故障情况下不能快速可靠地判别故障类型,无法准确测算出故障距离,难以满足系统瞬时稳定性能的要求。为此,以PSCAD/EMTDC为分析仿真平台,建立高压直流(HVDC)输电系统模型。针对HVDC输电系统接地极线路可能出现的故障进行设置与仿真,分析接地极线路的故障特点,并进行单端行波故障测距。仿真结果与理论分析一致,表明所建立的模型符合实际,为更好地研究接地极线路的保护与故障测距提供了理论分析平台。

关键词: 高压直流输电, 接地线路, 模型, 故障仿真

Abstract: Researches on grounding line fault protection have not been comprehensive enough up to now. Fault discrimination cannot be fast and reliable and the fault distance cannot be accurately measured. As a result, the requirements of system transient stability are difficult to be satisfied. A HVDC transmission system model is established in this paper by using the PSCAD/EMTDC simulation platform and a simulation is carried out on the grounding line faults that may occur in HVDC transmission system. The characteristics of the grounding line faults are analyzed and the fault location of single ended traveling waves is measured. The simulation results are consistent with theoretical analysis, which proves the practicality of the built model.

Key words: high voltage direct currant (HVDC) transmission, grounding line, model, fault simulation

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