智能电网
智能電網
지능전망
Smart Grid
2015年
1期
67-73
,共7页
刘骁繁%崔翔%吴恒天%雷林绪%赵波%赵鹏程%焦重庆
劉驍繁%崔翔%吳恆天%雷林緒%趙波%趙鵬程%焦重慶
류효번%최상%오항천%뢰림서%조파%조붕정%초중경
GIS设备%开关操作%模拟测试方法%智能组件%电磁骚扰
GIS設備%開關操作%模擬測試方法%智能組件%電磁騷擾
GIS설비%개관조작%모의측시방법%지능조건%전자소우
GIS equipments%switching operations%simulation test method%intelligent electronic devices%electromagnetic disturbance
GIS变电站结构紧凑，因电子设备与一次设备高度融合，使得电子设备的电磁兼容问题显得尤为重要。GIS设备开关操作产生的特快速瞬态电磁过程主要由传感器–电缆–智能组件这段电路对电子设备产生电磁影响。针对变电站电磁环境的复杂性，且现场测量是获得传感器和智能组件端口电磁骚扰数据的主要手段，提出一种 GIS 设备传感器和智能组件端口瞬态电磁骚扰的模拟测试方法，该方法无需改变变电站原有的传感器和智能组件，且在变电站现场具有很强的可操作性，然后分别将该方法应用于实验室GIS设备试验研究平台及智能变电站现场，并获得GIS设备传感器和智能组件端口电磁骚扰的时域和频率特性。研究结果表明，采用有效的屏蔽措施和接地技术后，220 kV电压等级GIS变电站开关操作产生的电磁骚扰对传感器和智能组件的正常工作不构成严重威胁。
GIS變電站結構緊湊，因電子設備與一次設備高度融閤，使得電子設備的電磁兼容問題顯得尤為重要。GIS設備開關操作產生的特快速瞬態電磁過程主要由傳感器–電纜–智能組件這段電路對電子設備產生電磁影響。針對變電站電磁環境的複雜性，且現場測量是穫得傳感器和智能組件耑口電磁騷擾數據的主要手段，提齣一種 GIS 設備傳感器和智能組件耑口瞬態電磁騷擾的模擬測試方法，該方法無需改變變電站原有的傳感器和智能組件，且在變電站現場具有很彊的可操作性，然後分彆將該方法應用于實驗室GIS設備試驗研究平檯及智能變電站現場，併穫得GIS設備傳感器和智能組件耑口電磁騷擾的時域和頻率特性。研究結果錶明，採用有效的屏蔽措施和接地技術後，220 kV電壓等級GIS變電站開關操作產生的電磁騷擾對傳感器和智能組件的正常工作不構成嚴重威脅。
GIS변전참결구긴주，인전자설비여일차설비고도융합，사득전자설비적전자겸용문제현득우위중요。GIS설비개관조작산생적특쾌속순태전자과정주요유전감기–전람–지능조건저단전로대전자설비산생전자영향。침대변전참전자배경적복잡성，차현장측량시획득전감기화지능조건단구전자소우수거적주요수단，제출일충 GIS 설비전감기화지능조건단구순태전자소우적모의측시방법，해방법무수개변변전참원유적전감기화지능조건，차재변전참현장구유흔강적가조작성，연후분별장해방법응용우실험실GIS설비시험연구평태급지능변전참현장，병획득GIS설비전감기화지능조건단구전자소우적시역화빈솔특성。연구결과표명，채용유효적병폐조시화접지기술후，220 kV전압등급GIS변전참개관조작산생적전자소우대전감기화지능조건적정상공작불구성엄중위협。
There is great concern on the electromagnetic compatibility problem of electronic equipments in an intelligent substation, due to the compact structure of gas insulated substation and the high degree of integration between the primary and electronic equipments. The very fast transient electromagnetic disturbance (VFTED) resulted from the GIS switching operation has potential impact on the electronic equipments by the electromagnetic coupling between the VFTED and the circuit of“sensor-cable-intelligent electronic device (IED)”. Due to the highly complexity of simulating the practical electromagnetic environment, measurement is the primary and dispensable approach to acquire the reliable electromagnetic disturbance data. A kind of simulation experimental method to measure the disturbance voltage on the ports of a sensor or an IED is proposed. This method has strong operability in the substation since it does not change the original sensors and IEDs. This method is applied to both the indoor 252 kV GIS experiment research platform and the 220 kV intelligent substation. The corresponding data are reported, and are analyzed in both time domain and frequency domain. The results show that, after the adoption of effective shielding and grounding technology, the electromagnetic disturbance due to GIS switching operations does not pose a serious threat to the normal operation of the sensors and IEDs in 220 kV GIS substations.
