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Current Transformer Draw-out Power Supply Design Based on Power-controlled Method
Author(s): LIU Yadong, SHENG Gehao, WANG Youjia, CHEN Jing, BAI Wanjian, JIANG Xiuchen
Pages: 70-
74
Year: 2010
Issue:
3
Journal: Automation of Electric Power Systems
Keyword: current transformer; draw-out power winding; maximum power output; power control; secondary turns; farad capacitor;
Abstract: 根据电流互感器的工作原理,建立了电流互感器取电线圈的负载工作模型,理论论证了取电线圈在未饱和时的输出功率与副边匝数、负载电流、磁化电流等的对应关系,并通过实验验证了理论推导的正确性,在此基础上提出基于功率控制法的电流互感器取电电源的设计方法,通过控制法拉电容充电电流,把取电线圈的输出功率限定在一个较小的范围,从而使电流互感器取电电源可以适应较大的导线电流范围.最终测试结果表明电流互感器取电电源在3...
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