Journal of South China University of Technology (Natural Science Edition) ›› 2015, Vol. 43 ›› Issue (4): 85-94.doi: 10.3969/j.issn.1000-565X.2015.04.013

• Power & Electrical Engineering • Previous Articles     Next Articles

Investigation into Tripping Characteristics of Low-Voltage Release Under Voltage Sag Based on Large-Scale Experimental

Ouyang Sen Liu Ping Li Xiang   

  1. School of Electric Power，South China University of Technology，Guangzhou 510640，Guangdong，China
  • Received:2014-09-29 Revised:2014-11-10 Online:2015-04-25 Published:2015-03-03
  • Contact: 欧阳森(1974-)，男，工学博士，副研究员，主要从事电能质量、节能技术与智能电器等研究． E-mail:ouyangs@scut.edu.cn
  • About author:欧阳森(1974-)，男，工学博士，副研究员，主要从事电能质量、节能技术与智能电器等研究．
  • Supported by:
    Supported by the Key Program of National Natural Science Foundation of China(50937001)

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Abstract: According to the GB/T17626． 11—2008 and the correlated research results at home and abroad，an ex-perimental scheme was proposed to explore the tripping characteristics of low-voltage release under voltage sag，and the corresponding experimental platform was constructed． With this platform，large-scale experiments of 10 com-monly-used low-voltage releases were carried out at different voltage sag amplitudes，durations and phases，finding that the amplitude，the duration and the phase collectively determine the tripping characteristicsof low-voltage re-lease under voltage sag． Moreover，the experimental results were extremely treated and a curve fitting was per-formed to explore the function relationship between the amplitude and the duration at different phases，as well as the function relationship between the phase and the duration at different amplitudes． Thus，a tripping model of low-voltage release under voltage sag is successfully established．

Key words: large-scale experiment method, low-voltage release, voltage sag, tripping characteristic, curve fitting