Time Domain Analysis and Efficiency Research of High Voltage Power Supply for Electron Beam Welder Based on LCC Resonance in DCM
2017 20th International Conference on Electrical Machines and Systems (ICEMS)(2017)
Abstract
In order to improve the efficiency of high voltage power supply for electron beam welder, the characteristics of LCC series parallel resonant converter with capacitive filtering are studied in this paper, and the circuit model of LCC resonance in discontinuous current mode(DCM) is established. The working mode of the converter is analyzed by mathematical time domain analysis method, and the mathematical formula of the converter is derived. In addition, this paper discusses the characteristics of the voltage gain in DCM, and the influences of the series parallel capacitance ratio and the voltage gain on the converter efficiency. Finally, the simulation and experimental results are given to verify the correctness of the theory.
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Key words
Discontinuous current mode,Efficiency,LCC series parallel resonant,Time domain analysis
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