于希娟, 李洪涛, 马喜欢, 陶顺, 马宁, 宋晓庆, 徐永海. 非线性负荷接入高压-超高压系统评估方法对比[J]. 中国电力, 2021, 54(12): 54-62. DOI: 10.11930/j.issn.1004-9649.202010121
引用本文: 于希娟, 李洪涛, 马喜欢, 陶顺, 马宁, 宋晓庆, 徐永海. 非线性负荷接入高压-超高压系统评估方法对比[J]. 中国电力, 2021, 54(12): 54-62. DOI: 10.11930/j.issn.1004-9649.202010121
YU Xijuan, LI Hongtao, MA Xihuan, TAO Shun, MA Ning, SONG Xiaoqing, XU Yonghai. Comparison of Assessment Methods for the Connection of Nonlinear Loads to HV-EHV Power Systems[J]. Electric Power, 2021, 54(12): 54-62. DOI: 10.11930/j.issn.1004-9649.202010121
Citation: YU Xijuan, LI Hongtao, MA Xihuan, TAO Shun, MA Ning, SONG Xiaoqing, XU Yonghai. Comparison of Assessment Methods for the Connection of Nonlinear Loads to HV-EHV Power Systems[J]. Electric Power, 2021, 54(12): 54-62. DOI: 10.11930/j.issn.1004-9649.202010121

非线性负荷接入高压-超高压系统评估方法对比

Comparison of Assessment Methods for the Connection of Nonlinear Loads to HV-EHV Power Systems

  • 摘要: 随着电力系统“双高化”的发展,非线性负荷或设备的容量越来越大,它们接入高压-超高压系统的需求越来越高。非线性负荷接入电网会向电网中注入谐波电流,造成电压波形畸变。为了评估非线性负荷的接入是否会对系统造成不可接受的电压谐波失真,国际电工委员会(IEC)制定的 IEC/TR 61000-3-6: 2008技术性文件和英国2020年颁布的G5/5工程导则给出了相应的评估方法。介绍了2个标准中非线性负荷接入高压-超高压系统的评估方法并进行对比分析,为电能质量谐波国标修订提供不同的视角和思考。

     

    Abstract: With the "double-high" development of power systems, the capacity of nonlinear loads or equipment is becoming increasingly larger, and the demand for their connection to the HV-EHV power systems is getting increasingly higher. However, the connection of the nonlinear loads will inject harmonic currents into the power systems, causing voltage waveform distortion. In order to assess whether the connection of nonlinear loads to power systems will cause unacceptable harmonic voltage distortion, the IEC/TR 61000-3-6: 2008 technical standard and the UK G5/5 Engineering Guidelines in 2020 have provided corresponding assessment methods. This paper firstly introduces the assessment methods for the connection of nonlinear loads to HV-EHV power systems provided in these two standards, and then makes a comparative analysis, which can provide a different vision and idea for the revision of the national standards on harmonics.

     

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