This analysis reveals electromagnetic processes in a three-phase inverter, suggesting model accuracy confirmed by simulations.
The article is devoted to the problem of developing mathematical models of a three-phase two-level voltage inverter with a split capacitance. An inverter operating in reverse mode (active rectifier) is considered, working as part of on-board power supply system with a primary four-wire source of alternating current with variable frequency. Mathematical models have been developed in a stationary a-b-c coordinate system using a model of power semicon-ductor keys in the form of switching functions, and in the state space of the converter circuit power switches. An analysis of electromagnetic processes in the circuit has been carried out, and inverter currents and voltages diagrams have been obtained. A comparative analysis of the obtained diagrams with the results of simulation modeling was carried out, and the adequacy of the obtained mathematical models was confirmed.
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Ashurkov et al. (2024) studied this question.
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