电工技术学报2017，Vol.32Issue(18)：52-61,10.DOI:10.19595/j.cnki.1000-6753.tces.161274
无线电能传输系统三相相移控制逆变器研发
Development of a Three-Phase Inverter with Phase-Shifted Control for Wireless Power Transfer System
摘要
Abstract
A three-phase inverter with phase-shifted control for wireless power transfer system is developed in this paper. The inverter consists of three Class-D half inverters, whose MOSFETs operate at a constant switching frequency, and its output voltage is regulated via adjusting the driver angle among phases. Accordingly, the power regulation of wireless power transfer can be achieved. Main features of the inverter are analyzed, including the relationship between the output voltage and the phase-shift angle, the phase-currents, and ZVS conditions of each phase. Efficiencies under either phase-shift control and frequency-control are derived. An experimental prototype of phase-shift controlled inverter with 3 phases is developed and employed in a wireless power transfer system to deliver power between two planar rectangular solenoid coils with out-dimensions of 90cm×70cm. Experiments show that when the phase-shift angle is changed from 0 to 120 degree, the receiving power at the load of 10Ω at the secondary side varies between 5.2kW and 0kW. Meanwhile, when the system operates at the maximum output power, the DC-DC maximum efficiency is 94%, which is defined as the ratio of the DC-load power at the receiving side to the inverter DC-input power at the sending side.关键词
相移控制逆变器/相移角/零电压切换/无线电能传送/功率控制Key words
Phase-shift controlled inverter/phase-shift angle/zero voltage switching/wireless power transfer/power control分类
信息技术与安全科学引用本文复制引用
邓其军,刘姜涛,陈诚,周洪,胡文山..无线电能传输系统三相相移控制逆变器研发[J].电工技术学报,2017,32(18):52-61,10.基金项目
国家自然科学基金资助项目(51677139). （51677139）
