PWM for Simultaneous Minimization of Switching Losses and CM Voltage in Current Source Inverters

Lee, Sangwhee; Chen, Feida; Jahns, Thomas M.; Sarlioglu, Bulent

doi:10.1109/tte.2024.3379857

Title: PWM for Simultaneous Minimization of Switching Losses and CM Voltage in Current Source Inverters

Journal Article · 19 March 2024 · IEEE Transactions on Transportation Electrification (Online)

DOI: https://doi.org/10.1109/tte.2024.3379857 · OSTI ID:2504261

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University of Wisconsin–Madison, WI (United States)

This article proposes a new pulsewidth modulation (PWM) scheme that reduces common-mode (CM) voltage and switching losses simultaneously in CSI. The proposed PWM [i.e., reduced voltages PWM (RVM)] reduces CM voltages and switching losses by selecting the optimal zero current vector and PWM sequence based on the CSI output voltage conditions. This article also proves the proposed RVM achieves both objectives (i.e., reduced CM voltage and switching losses) simultaneously for all CSI operating conditions without compromising the other objective. The proposed RVM inherently achieves zero-voltage switching (ZVS) conditions during the zero current vector transitions, further reducing the switching losses. Experimental results demonstrate significant reductions in CM voltage, reaching up to approximately 95%, accompanied by an increase of up to about 5.5% in CSI efficiency across a wide operating range compared to alternative PWM methods, confirming the predicted advantages of the proposed RVM.

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Research Organization:: University of Wisconsin–Madison, WI (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)

Grant/Contract Number:: EE0008704

OSTI ID:: 2504261

Journal Information:: IEEE Transactions on Transportation Electrification (Online), Journal Name: IEEE Transactions on Transportation Electrification (Online) Journal Issue: 4 Vol. 10; ISSN 2332-7782

Publisher:: IEEECopyright Statement

Country of Publication:: United States

Language:: English

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Common-mode (CM) voltage
common-mode voltage
current source inverter
pulse-width modulation
switching losses
current source inverter (CSI)
pulsewidth modulation (PWM)
switching losses

Title: PWM for Simultaneous Minimization of Switching Losses and CM Voltage in Current Source Inverters

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