Title :
Analysis and design of a wireless closed-loop ICPT system working at ZVS mode
Author :
Lu, Rengui ; Wang, Tianyu ; Mao, Yinhua ; Zhu, Chunbo
Author_Institution :
Sch. of Electr. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
Based on the T-type equivalent circuit model of loosely coupled transformer, the theory of series-series (SS) resonant inductively coupled power transfer (ICPT) system was analyzed. By researching the principle of ICPT system working at zero voltage switch (ZVS) mode, the condition for realizing ZVS mode was got that the load resistance should be bigger than its critical value. According to the characteristic of open-loop ICPT system, a wireless voltage-feedback control for ICPT system working at ZVS mode was established. Based on the analysis above, An ICPT system prototype was built and tested, the maximum open-loop output power was 3.4 KW, overall efficiency was 90%; the closed-loop output voltage was stable at 260 V, and the maximum output power is 1.9 KW.
Keywords :
closed loop systems; equivalent circuits; feedback; inductive power transmission; open loop systems; power transformers; voltage control; zero voltage switching; T-type equivalent circuit model; ZVS mode; closed-loop output voltage; efficiency 90 percent; load resistance; loosely coupled transformer; maximum open-loop output power; open-loop ICPT system; power 1.9 kW; power 3.4 kW; series-series resonant inductively coupled power transfer system; voltage 260 V; wireless closed-loop ICPT system; wireless voltage-feedback control; zero voltage switch mode; Converters; MOSFET circuits; Power generation; Resistance; Voltage control; Windings; Zero voltage switching; Inductively coupled power transfer (ICPT); closed-loop; zero voltage switch(ZVS);
Conference_Titel :
Vehicle Power and Propulsion Conference (VPPC), 2010 IEEE
Conference_Location :
Lille
Print_ISBN :
978-1-4244-8220-7
DOI :
10.1109/VPPC.2010.5729038
