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DOE OSTI · 2535657

Comprehensive Efficiency Analysis of Seven-Switch Current-Source Inverter Based on Voltage-Boost Function and Genetic Algorithm

Chen, Feida·Lee, Sangwhee·Jahns, Thomas M.·Sarlioglu, Bulent
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Abstract

This paper investigates the voltage-boost features of the emerging seven-switch current-source inverter (H7-CSI) to improve the efficiency of the CSI-based motor drive system. The switching transient and power loss model of the H7-CSI topology during voltage-boost operation are analyzed in detail. The effects of the boost function on the switching and conduction loss of the H7-CSI topology are investigated. A genetic algorithm has been introduced that makes it possible to optimize the H7-CSI’s modulation index to minimize its power loss. Experimental results for the H7-CSI unit show that this optimization can reduce the power loss by 10.6%.

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42 ENGINEERINGcurrent source inverter (CSI), genetic algorithm, silicon carbide (SiC), system loss, switching transient, voltage boost function

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Chen, Feida, Lee, Sangwhee, Jahns, Thomas M., Sarlioglu, Bulent. 2023-10-29. Comprehensive Efficiency Analysis of Seven-Switch Current-Source Inverter Based on Voltage-Boost Function and Genetic Algorithm. https://doi.org/10.1109/ecce53617.2023.10362792

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