CVT耦合电容器残余电感形成机理分析及降低方法研究
发布时间:2018-10-14 18:23
【摘要】:耦合电容器在电力系统高频保护、电压测量以及过电压抑制中起着重要作用。但受构成元件及制造工艺所限,其不可避免地存在残余电感,进而影响到其高频性能。本文研究了残余电感的形成机理,设计了三种具有不同引线片结构的耦合电容器,利用阻抗分析仪对其残余电感进行测量和对比分析。分析与测量结果表明:引线片是耦合电容器残余电感的重要组成部分,残余电感的大小与引线片尺寸密切相关,引线片越宽、残余电感越小。研究结果可用于改进耦合电容器的设计以提高其高频性能。
[Abstract]:Coupling capacitors play an important role in power system high frequency protection, voltage measurement and overvoltage suppression. However, due to the limitation of components and manufacturing process, the residual inductance inevitably exists, thus affecting its high frequency performance. In this paper, the formation mechanism of residual inductance is studied, and three kinds of coupling capacitors with different lead structure are designed. The residual inductance is measured and compared by impedance analyzer. The results of analysis and measurement show that the lead plate is an important part of the residual inductance of the coupling capacitor. The size of the residual inductor is closely related to the size of the lead piece. The wider the lead piece, the smaller the residual inductance. The results can be used to improve the design of coupling capacitors to improve their high frequency performance.
【作者单位】: 中国电力科学研究院;华北电力大学电气与电子工程学院;
【基金】:国家电网公司科技项目(GYW17201400161)
【分类号】:TM53;TM451
本文编号:2271258
[Abstract]:Coupling capacitors play an important role in power system high frequency protection, voltage measurement and overvoltage suppression. However, due to the limitation of components and manufacturing process, the residual inductance inevitably exists, thus affecting its high frequency performance. In this paper, the formation mechanism of residual inductance is studied, and three kinds of coupling capacitors with different lead structure are designed. The residual inductance is measured and compared by impedance analyzer. The results of analysis and measurement show that the lead plate is an important part of the residual inductance of the coupling capacitor. The size of the residual inductor is closely related to the size of the lead piece. The wider the lead piece, the smaller the residual inductance. The results can be used to improve the design of coupling capacitors to improve their high frequency performance.
【作者单位】: 中国电力科学研究院;华北电力大学电气与电子工程学院;
【基金】:国家电网公司科技项目(GYW17201400161)
【分类号】:TM53;TM451
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