Modeling and analysis of disturbance voltage induced on the intelligentelectronic device ports based on the transmission-line network inultra high voltage gas insulated substations

doi:10.11835/j.issn.1000-582X.2016.06.007

Home > Archive>Volume 39, Issue 6, 2016 >49-57. DOI:10.11835/j.issn.1000-582X.2016.06.007

Modeling and analysis of disturbance voltage induced on the intelligentelectronic device ports based on the transmission-line network inultra high voltage gas insulated substations
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                        10.11835/j.issn.1000-582X.2016.06.007
                    
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                        LIU XiaofanLIU Xiaofan
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, NorthChina Electric Power University, Beijing 102206, P. R. China;State Grid Jiangsu Economic ResearchInstitute, Nanjing 210008, P. R. China
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JIAO ChongqingJIAO Chongqing
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, NorthChina Electric Power University, Beijing 102206, P. R. China
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CUI XiangCUI Xiang
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, NorthChina Electric Power University, Beijing 102206, P. R. China
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JI JianfeiJI Jianfei
State Grid Jiangsu Electric Power Company ResearchInstitute, Nanjing 211103, P. R. China
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Abstract:

With the development of intelligent GIS equipment, a lot of electronic equipments are integrated on the GIS. The very fast transient electromagnetic disturbance (VFTED) resulted from the GIS switching operation has potential impact on the electronic equipment by the electromagnetic coupling between the VFTED and the circuit of "sensor-cable-intelligent electronic device(IED)". In this paper, a theoretical model based on the transmission-line network was established first to calculated the coupling of the ground potential rise produced by switching operations to the circuit of "sensor-cable-IED". Then the validation of this model was verified when it was used to a simple configuration. Finally, based on this model, the disturbance voltages on the sensor/IED ports and those between the IED ports were calculated and the suppression effectiveness of the grounding of the cable shield layer on the disturbance voltages was investigated. The results show that the grounding modes have great influence on disturbance voltage. By choosing the appropriate grounding mode, electromagnetic disturbance caused by switching operations can be effectively suppressed.

Key words:substation;GIS;switching operation;ground potential rise;transmission-line network

Reference

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刘骁繁,焦重庆,崔翔,嵇建飞.基于传输线网络的特高压变电站智能组件端口电磁骚扰的建模仿真[J].重庆大学学报,2016,39(6):49~57

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Received:July 10,2016
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Online: December 12,2016
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