Abstract
In this paper, a new zero voltage transition (ZVT) resonant boost converter is proposed. A typical boost converter generates switching losses at turning on and turning off, and these losses cause a reduction in the efficiency of the whole system. This proposed ZVT resonant boost converter utilizes a soft switching method, using an auxiliary circuit with a resonant inductor, capacitor, and two auxiliary switches. Therefore, it can reduce switching losses more so than the conventional hard switching converter. Also, the conduction period of the resonant inductor current is reduced by using a modified circuit. An experiment is conducted with the converter, which steps up the voltage from 200 V to 380 V and its switching frequency and output power are 30 kHz and 4 kW, respectively. It is confirmed that the experimental results and simulation results are the same and the validity of this proposed converter is verified. The conventional converter and proposed converter are analyzed by comparing the experimental results of two converters under the same conditions. It is confirmed that all switches can achieve soft switching and the proposed converter improves on the conventional converter by measuring the efficiency of two converters.
Highlights
There has been an increase in the interest of using renewable energy sources to replace fossil fuels in order to resolve problems related to environmental destruction and to combat climate change and extreme weather trends that may be caused by environmental and air pollution that have resulted from recent rapid industrialization [1,2].Various potential sources of alternate energy, including solar, wind, tidal, and hydrogen energy, have been the subject of intensive research
This paper proposes a resonant zero voltage transition (ZVT) boost DC–DC converter that uses an auxiliary resonant
This paper proposes a resonant ZVT boost DC–DC converter that uses an auxiliary resonant circuit to reduce switching losses and to improve converter efficiency
Summary
There has been an increase in the interest of using renewable energy sources to replace fossil fuels in order to resolve problems related to environmental destruction and to combat climate change and extreme weather trends that may be caused by environmental and air pollution that have resulted from recent rapid industrialization [1,2]. The resonant inductor current flows continuously through the auxiliary circuit. The proposed ZVT Boost converter has a modified resonant circuit to reduce conduction loss. This paper proposes a resonant ZVT boost DC–DC converter that uses an auxiliary resonant circuit to reduce switching losses and to improve converter efficiency. The resonant circuit is composed circuit to reduce switching losses and to improve converter efficiency. This leads to a reduction in the switching period of the resonant inductor is reduced using a modified circuit This leads to a reduction in losses and an improvement in the overall system efficiency, as compared to a conventional converter at the switching losses and an improvement in the overall system efficiency, as compared to a the same frequency.
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