Wireless Power Transfer System of On-line Monitoring Equipment for High Voltage Transmission Line Based on Double-sided LCC Resonant Network

For the wireless power supply of on-line monitoring equipment for HVTL (high voltage transmission lines), a multi-relay WPT (Wireless Power Transfer) system with double-sided LCC resonant network is proposed to improve the system output power and constant voltage output characteristic. In order to reduce the influence of frequency splitting on system output characteristic, three working modes are analyzed. A numerical simulation analysis has been carried out to prove that the working modes proposed can improve the system’s constant voltage output capability.