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高压电器  2014 

基于互感取能的导线监测传感器电源设计

, PP. 16-22

Keywords: 输电导线,电源,互感取能,取能线圈,保护

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Abstract:

笔者设计了基于互感取能的导线监测传感器电源,该电源利用互感原理,通过取能线圈将高压侧导线上的电能感应到二次低压侧,然后经过整流滤波处理、稳压处理和DC-DC处理后,供在线监测装置使用。基于以上原理做出了具体设计,并且为了应对导线上电流瞬变、电流过大和电流不足等问题,分别采取了加入瞬时过电压保护、过压过流保护和锂电池的措施,其中过压过流保护分为两级,一级针对导线电流正常波动时的保护,另一级针对输电导线异常过流或短路故障时的保护。并搭建实验平台进行测试,最后,用笔者所研制的一种基于该电源的监测装置对其进行了验证。

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