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In this paper, a three loop control strategy (TLCS) based on decoupled zero voltage switching angle (ZVSA) loop is proposed for a series-series (SS) compensated wireless power transmission (WPT) system. To realize constant current charging for EVs and ZVS operation of primary inverter, variable frequency and phase shift control strategy (VF-PSC) is adopted. However, the control variables that are...
This paper proposed a combined phase shift PWM and PFM controller of a high frequency three level single-phase half bridge neutral point clamp voltage source inverter (NPCVSI) induction heating application. In heating operation, output power and switching frequency of the inverter are controlled by digital controller to achieve maximum output power and maintain zero voltage switching (ZVS) condition...
The main objective of this paper is to study and analyze the power supply stage of a series-series (SS) fixed-frequency inductive power transfer (IPT) system, in order to suggest effective soft switching techniques to improve its performance. Because of the characteristics of the system, zero voltage switching (ZVS) operation was used and three control strategies were compared: phase-shift (PS) control,...
This paper presents a new ZVT-PWM high frequency inverter. The ZVT operation is achieved in the hole load range by using a simple auxiliary reverse blocking switch in parallel with series resonant capacitor dual duty cycle is used to provide a wide range of output power regulation which is important in many high frequency inverter applications. It is more suitable for induction heating applications...
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