A Control Strategy for Efficiency Optimization and Wide ZVS Operation Range in Bidirectional Inductive Power Transfer System

被引：144
作者：
Zhang, Xiaoming [1 ]
Cai, Tao [1 ]
Duan, Shanxu [1 ]
Feng, Hao [1 ]
Hu, Hongsheng [1 ]
Niu, Jintao [1 ]
Chen, Changsong [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Sch Elect & Elect Engn, Wuhan 430074, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2019年 / 66卷 / 08期
关键词：
Bidirectional inductive power transfer (BIPT); time domain model; triple-phase-shift (TPS) control; zero voltage switching (ZVS); WIRELESS POWER; ACTIVE-RECTIFIER; MODEL;
D O I：
10.1109/TIE.2018.2871794
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The efficiency of bidirectional inductive power transfer (BIPT) systems is strongly dependent on the load. Besides, the soft-switching operation of power switches is critical to high-frequency converter in the BIPT systems. In this paper, a triple-phase-shift (TPS) control strategy is proposed to achieve load matching while realizing zero voltage switching (ZVS) for all power switches within the entire power range. The load matching condition of the BIPT system with double-sided LCC compensation network is analyzed. And a dual side phase shift control is proposed to adjust power flow while realizing load matching. To realize ZVS operation, the third phase shift between primary and secondary side is introduced as an extra control variable. A time domain model of double-sided LCC compensation network is established to analyze the ZVS range. With the proposed TPS control, wide ZVS operation range of the system can be achieved while maintaining load matching. At last, a scale down prototype of 1 kW BIPT system is developed. The experimental results show good agreement with theoretical analysis, all switches realize ZVS within the entire power range and a peak efficiency of 94.83% is achieved.
引用
收藏
页码：5958 / 5969
页数：12
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