高压电缆感应式取电电源分析及设计  

Research on a Electromagnetic Induction Fed Power Supply From High Voltage Cable

作　　者：李华阳[1] 尚宇炜[1] 吴成才 吴建德[1] 

机构地区：[1]浙江大学,电气工程学院,浙江杭州310027 [2]浙江图维电力科技有限公司,浙江杭州310014

出　　处：《电力电子技术》2012年第10期83-86,共4页Power Electronics

基　　金：国家自然科学基金(61174157)~~

摘　　要：通过建立高压电缆感应取电的精确工作模型,推导了取电线圈输出功率与输出电压、负载阻值、磁芯参数及线圈匝数的关系,并提出取电线圈的设计方法。设计了一种两级稳压电路,第1级采用滞环控制的Boost电路预稳压,输出较高的电压以获取大的输出功率,并有效防止磁芯饱和;第2级采用Buck电路获得所需的供电电压。最后,为验证理论推导的正确性,设计了一个取电稳压电路,在电缆电流为0.2-1 kA范围内,该取电电路可稳定输出15 V/18 W的直流电。The equivalent circuit model of electromagnetic fed induction power supply from the high voltage cable is built, and the relationship among current transformer＇s output power, output voltage, load condition, magnetic core pa- rameter and coil turns are derived to give a design guidance for the proposed solution.Furthermore, a practical power supply circuit with a two-stage converter configuration is proposed to achieve the power transmission.The first stage adopts the Boost pre-regulation circuit to get large output power and prevent core saturation.Buck circuit is the sec- ondary stage to get required supply voltage.Finally,the output power of the power supply with 15 V/18 W DC output from the 0.2-1 kA current loop is tested to verify the effectiveness of the theoretical derivation.

关 键 词：电源 高压电缆 稳压电路 

分 类 号：TN86[电子电信—信息与通信工程]