A CB-SVPWM control strategy for neutral-poin voltage balancing in three-level NPC inverters

© 2017 IEEE. For the three-level neutral-point-clamped inverters, neutral point voltage balancing control is necessary for proper operation. This paper presents a balancing control strategy of the neutral-point voltage with a closed-loop dc-link mid-point capacitor voltage control. Instead of the ad...

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Main Authors: Hussapong Kitidet, Yuttana Kumsuwan
Format: Conference Proceeding
Published: 2018
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Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85044215547&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/57022
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-570222018-09-05T03:37:54Z A CB-SVPWM control strategy for neutral-poin voltage balancing in three-level NPC inverters Hussapong Kitidet Yuttana Kumsuwan Computer Science Engineering © 2017 IEEE. For the three-level neutral-point-clamped inverters, neutral point voltage balancing control is necessary for proper operation. This paper presents a balancing control strategy of the neutral-point voltage with a closed-loop dc-link mid-point capacitor voltage control. Instead of the adjustable pulse-width switching sequence of the small voltage vector with the space-vector-based concept, it is only done by mathematical analysis of the neutral-point current coordinated with the carrier-based pulse width modulation concept to find out the relative DC offset added into the continuous modulating signals. This is in order to regulate the inverter operation for solving the unbalanced dc voltages of two split capacitors. The distinctive simplicity of the proposed control strategy is the use of the DC-side diagnosis along with a convenient P controller. The performance and feasibility of the proposed control strategy are verified by detailed simulation results. 2018-09-05T03:34:04Z 2018-09-05T03:34:04Z 2017-12-19 Conference Proceeding 21593450 21593442 2-s2.0-85044215547 10.1109/TENCON.2017.8228144 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85044215547&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/57022
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Computer Science
Engineering
spellingShingle Computer Science
Engineering
Hussapong Kitidet
Yuttana Kumsuwan
A CB-SVPWM control strategy for neutral-poin voltage balancing in three-level NPC inverters
description © 2017 IEEE. For the three-level neutral-point-clamped inverters, neutral point voltage balancing control is necessary for proper operation. This paper presents a balancing control strategy of the neutral-point voltage with a closed-loop dc-link mid-point capacitor voltage control. Instead of the adjustable pulse-width switching sequence of the small voltage vector with the space-vector-based concept, it is only done by mathematical analysis of the neutral-point current coordinated with the carrier-based pulse width modulation concept to find out the relative DC offset added into the continuous modulating signals. This is in order to regulate the inverter operation for solving the unbalanced dc voltages of two split capacitors. The distinctive simplicity of the proposed control strategy is the use of the DC-side diagnosis along with a convenient P controller. The performance and feasibility of the proposed control strategy are verified by detailed simulation results.
format Conference Proceeding
author Hussapong Kitidet
Yuttana Kumsuwan
author_facet Hussapong Kitidet
Yuttana Kumsuwan
author_sort Hussapong Kitidet
title A CB-SVPWM control strategy for neutral-poin voltage balancing in three-level NPC inverters
title_short A CB-SVPWM control strategy for neutral-poin voltage balancing in three-level NPC inverters
title_full A CB-SVPWM control strategy for neutral-poin voltage balancing in three-level NPC inverters
title_fullStr A CB-SVPWM control strategy for neutral-poin voltage balancing in three-level NPC inverters
title_full_unstemmed A CB-SVPWM control strategy for neutral-poin voltage balancing in three-level NPC inverters
title_sort cb-svpwm control strategy for neutral-poin voltage balancing in three-level npc inverters
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85044215547&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/57022
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