Electrical Engineering and Systems Science > Systems and Control
[Submitted on 2 Sep 2025
]
Title: Design of an Efficient Three-Level Buck-Boost Converter in PSIM
Title: PSIM中高效三电平降压-升压转换器的设计
Abstract: Compared to conventional converters, a three-level buck-boost (3L-BB) converter offers higher efficiency, reduced switching losses, and increased power density. We design a 3L-BB converter given certain voltage and current specifications in PSIM. We simulate the circuit in PSIM and analyze the power, voltage, and current waveforms by comparing the observed simulated values in PSIM with their mathematically driven theoretical values. We examine its power efficiencies and determine if the circuit meets given DC distribution specifications. We show that the proposed three-phase design, which uses two DC-DC single-ended primary-conductor converters (SEPICs), is power efficient and is a compelling solution for high-power and high-voltage applications.
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