Electric Power ›› 2016, Vol. 49 ›› Issue (5): 111-115.DOI: 10.11930/j.issn.1004-9649.2016.05.111.05

• Smart Grid • Previous Articles     Next Articles

A Power Supply Device Based on Wireless Power Transfer for the Online Monitoring Equipment of Power Lines

ZHOU Hong, JIANG Yan   

  1. School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
  • Received:2016-02-22 Online:2016-05-16 Published:2016-05-16
  • Supported by:
    This work is supported by National Science and Technology Supporting Program (No. 2013BAA01B01).

Abstract: Reliable power supply for the online monitoring equipment of power transmission lines is one of the most urgent problems needing to be solved. For this purpose, a magnetic resonance coupling-based wireless power supply device is designed,which is convenient for maintenance and free of weather influence. On the basis of analyzing the output power of the wireless power supply device, the maximum power point tracking control system is used to ensure a stable power output. The device has been tested by the dedicated state-own inspection agency in power frequency withstand voltage, power output and tuning control, which shows that the device can work normally after power frequency withstand voltage testing and can provide stable outputs throughout the range of simulated power line current varying from 200-1 000 A, and the output power can increase by more than two times after adding frequency tuning control. The testing result proves that the device can provide a stable power supply in a transfer distance of 1.1 m.

Key words: wireless power transfer, magnetic resonance coupling, online monitoring, smart grid, non-contact

CLC Number: