期刊论文

An energy acquisition research for transmission lines based on impedance matching

中文

电气传动自动化

1005-7277

2019

41

1

5-9

10.3969/j.issn.1005-7277.2019.01.002

本校为第一机构

本文针对基于开口式磁芯的常规电流互感器取能电源输出功率小、传递效率低的特点,在分析在线取能电源等效电路模型的基础上,为了让在线取能电源在给定负载情况下能够实现大功率、高效率输出,提出了在电流互感器副边并联匹配电容实现并联谐振大幅度增加线路阻抗从而抑制线路电流,通过分流将输电线路的负荷电流导入负载实现功率输出.通过建立电流互感器电路模型,给出了整流电路的控制方法,并且进行了数学推导.最后,通过simulink仿真与实验验证,结果显示改进的取电电源取得的能量比常规电流互感器取能在相同条件下能够获取更多电能.

In this paper, based on the characteristics of the output power of the conventional current transformer based on the open core, the output power of the power supply is small and the transmission efficiency is low. Based on the analysis of the equivalent circuit model of the online power supply, the online power supply is given a load. Under the current, the high-power, high-efficiency output can be realized. It is proposed that the parallel matching of the secondary side of the current transformer realizes the parallel resonance to greatly increase the line impedance and thereby suppress the l...