电测与仪表
電測與儀錶
전측여의표
ELECTRICAL MEASUREMENT & INSTRUMENTATION
2014年
20期
116-121
,共6页
变压器铁芯线圈%并联电容器组%断路器同期合闸%铁磁谐振%过电压
變壓器鐵芯線圈%併聯電容器組%斷路器同期閤閘%鐵磁諧振%過電壓
변압기철심선권%병련전용기조%단로기동기합갑%철자해진%과전압
transformer core coil%shunt capacitor bank%closing breaker over the same period%ferromagnetic reso-nance%overvoltage
并联电容器组进行无功补偿时，由于断路器开关投切方式不当，可能造成并联电容器组与变压器铁芯线圈发生铁磁谐振。文章通过断路器同期合闸时的系统发生过电压现象，对谐振时并联电容器组与变压器铁芯线圈伏安特性进行分析，给出并联电容器与变压器产生铁磁谐振的机理和特点，并提出了有效抑制铁磁谐振发生的具体措施。仿真结果验证了理论分析与抑制方法的正确性。
併聯電容器組進行無功補償時，由于斷路器開關投切方式不噹，可能造成併聯電容器組與變壓器鐵芯線圈髮生鐵磁諧振。文章通過斷路器同期閤閘時的繫統髮生過電壓現象，對諧振時併聯電容器組與變壓器鐵芯線圈伏安特性進行分析，給齣併聯電容器與變壓器產生鐵磁諧振的機理和特點，併提齣瞭有效抑製鐵磁諧振髮生的具體措施。倣真結果驗證瞭理論分析與抑製方法的正確性。
병련전용기조진행무공보상시，유우단로기개관투절방식불당，가능조성병련전용기조여변압기철심선권발생철자해진。문장통과단로기동기합갑시적계통발생과전압현상，대해진시병련전용기조여변압기철심선권복안특성진행분석，급출병련전용기여변압기산생철자해진적궤리화특점，병제출료유효억제철자해진발생적구체조시。방진결과험증료이론분석여억제방법적정학성。
When the shunt capacitor banks carry out the reactive power compensation,the ferromagnetic resonance be-tween shunt capacitor banks and transformer core coil may come about due to the improper way of opening up and closing circuit breaker switch. Through the phenomenon of the system overvoltage when the circuit breaker switch clo-ses homochronously ,the volt-ampere characteristic of shunt capacitor bank and transformer core coil will be analyzed in this paper. The mechanism and characteristics of ferromagnetic resonance will be given out when the ferromagnetic resonance occurred,and the specific measures will be presented that it can effectively suppressed the occurrence of ferromagnetic resonance. Simulation results verify the theoretical analysis and correctness of the suppression method.
