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The ZVS-SVM controlled three-phase boost rectifier can realize ZVS operation for all switching devices. In this paper, the operation principal and design guideline are described in detail. The soft switching restriction is analyzed in particular. The experimental results of a 40 kW hardware prototype are presented to show the superiority of the topology and the reduction on loss.
The MVAC-SVM controlled three-phase boost rectifier can realize ZVS operation for all switching devices. SVM can be realized with switch device operating at the fixed switching frequency. And the switching voltage stress of all the power switch devices is equal to the DC link voltage. In this paper, a minimum voltage active clamping zero voltage switching SVM controlled three phase boost rectifier...
This paper proposes a zero-voltage and zero-current-switching three-level (ZVZCS TL) DC-DC converter using passive clamping circuit to reduce switching loss, improve current trails of IGBT and improve the converter efficiency. The proposed TL converter can achieve effective zero-voltage switching (ZVS) for the TL leg and zero-current switching (ZCS) for the two-level leg. By using the passive clamping...
Based on the characteristics of conventional full-bridge phase-shift PWM ZVS (zero-voltage-switching) DC-DC converter, a novel full-bridge phase-shift PWM ZVS DC-DC converter using non-dissipative snubber circuit is proposed. The converter can achieve ZVS for all switches effectively. The principle and operation modes of the converter are analyzed in detail, and the necessary condition of soft switching...
The compound active clamping three-phase boost rectifier proposed by authors has a clamp branch composed of an active switch, a resonant inductor and a clamping capacitor. With a novel zero voltage switching space vector modulation (ZVS-SVM) method, the rectifier can realize ZVS operation for all switching devices and effectively suppress the reverse recovery process of the bridge leg switch anti-parallel...
A zero voltage switching space vector modulation (ZVS-SVM) controlled three-phase boost rectifier is proposed. A branch composed of one active switch, one resonant inductor and one clamping capacitor is added to the six-switch boost rectifier. In addition, a ZVS-SVM for the rectifier is proposed. It can effectively suppress the reverse recovery process of the bridge switch anti-parallel diodes. All...
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