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高压电器  2014 

磁集成技术在变压器式可控电抗器中的应用

, PP. 6-11

Keywords: 变压器式可控电抗器,磁集成,仿真,利用率

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Abstract:

由于变压器式可控电抗器(controllablereactoroftransformertype,CRT)控制绕组间存在磁耦合,笔者将解耦磁集成技术应用于CRT的结构设计中,通过向各控制绕组的磁通提供低磁阻磁路来实现控制绕组间的解耦,从而提出了一种磁集成CRT铁心结构,进一步计算了各绕组的漏感,建立了其电感―变压器等效电路,推导了各控制绕组间的耦合度以及空载电流与侧柱气隙大小之间的关系式,并在MATLAB平台下对其进行了仿真分析。仿真结果表明增大气隙,可以减小控制绕组间的磁耦合,提高绕组容量利用率;验证了此结构通过控制侧柱气隙的大小达到解耦的方法是有效的。

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