High-Performance Discontinuous Pulse Width Modulation Strategy for 3-level Asymmetric T-NPC Inverter

Discontinuous mode pulse width modulation (DPWM) is commonly used to improve switching losses for three-phase converters. This paper studies the DPWM strategies for the 3-level asymmetrical T-NPC (AT-NPC) inverter. First, a carrier-based DPWM technique with an offset function is introduced. Secondly...

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Bibliographic Details
Main Authors: Doan, Nam Xuan, Tan Van, Luong, Van Nguyen, Nho
Format: Conference Proceeding
Language:English
Subjects:
Aerospace electronics
Asia
Asymmetric inverter
discontinuous PWM
Inverters
Proposals
Pulse width modulation
space vector PWM
Switching loss
T-NPC 3-level
Online Access:Request full text
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Summary:Discontinuous mode pulse width modulation (DPWM) is commonly used to improve switching losses for three-phase converters. This paper studies the DPWM strategies for the 3-level asymmetrical T-NPC (AT-NPC) inverter. First, a carrier-based DPWM technique with an offset function is introduced. Secondly, a space vector DPWM strategy is proposed based on the three nearest voltage vectors principle. The PWM control performance of the proposed modulation methods is then verified by simulation and experimental results. A detailed comparison between the two methods is also conducted.
ISSN:2150-6086
DOI:10.23919/ICPE2023-ECCEAsia54778.2023.10213905