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Elimination of Abnormal Time-Delay in Phase-Shift-Based PWM for Five-Level Hybrid Active NPC Inverters
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Publication Year
2023-01-01
Journal
ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics, pp.2290-2295
Keyword
Five-level hybrid active neutral-point-clamped (NPC) invertersmicrocontrollerphase-shift pulse-width-modulation (PWM)time-delay
Mesh Keyword
Active neutral point clampedFive-level hybrid active neutral-point-clamped inverterIn-phaseNeutral-point clamped invertersOutput voltagesPhase-shift pulse width modulationsPhase-shift pulse-width-modulationPulsewidth modulations (PWM)Switching schemeTime-delays
All Science Classification Codes (ASJC)
Hardware and ArchitectureEnergy Engineering and Power TechnologyElectrical and Electronic Engineering
Abstract
Five-level hybrid active neutral-point-clamped (NPC) inverters have recently attracted much attention due to their high power density and quality, dv/dt, and low stress on switching devices. There have been various modulation schemes presented to control the five-level hybrid active NPC inverter. Among these approaches is phase-shift pulse-width-modulation (PWM), which has a natural voltage balancing capability. However, implementing this scheme on a microcontroller is complex and results in a distortion in the output voltages owing to an abnormal delay in the generated PWM pulses. Therefore, an effective switching scheme is proposed in this paper to eliminate any abnormal delay in the conventional phase-shift PWM. The proposed switching scheme is generated based on inverted reference voltages per phase to control the five-level hybrid active NPC inverter. Simulation and experimental results are provided to verify the effectiveness of the proposed phase-shift PWM in generating five-level output voltage without any distortion.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/37003
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85170649394&origin=inward
DOI
https://doi.org/10.23919/icpe2023-ecceasia54778.2023.10213897
Journal URL
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=10213399
Type
Conference
Funding
ACKNOWLEDGMENT This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20225500000110).
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Lee, Kyo-Beum이교범
Department of Electrical and Computer Engineering
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