Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition
This research article exploits the power management algorithm in post-fault conditions for a six-phase (quad) multilevel inverter. The drive circuit consists of four 2-level, three-phase voltage source inverter (VSI) supplying a six-phase open-end windings motor or/impedance load, with circumstantia...
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/42784/ |
| _version_ | 1848796567419486208 |
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| author | Padmanaban, Sanjeevikumar Grandi, Gabriele Blaabjerg, Frede Wheeler, Patrick Ojo, Joseph Olorunfemi |
| author_facet | Padmanaban, Sanjeevikumar Grandi, Gabriele Blaabjerg, Frede Wheeler, Patrick Ojo, Joseph Olorunfemi |
| author_sort | Padmanaban, Sanjeevikumar |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This research article exploits the power management algorithm in post-fault conditions for a six-phase (quad) multilevel inverter. The drive circuit consists of four 2-level, three-phase voltage source inverter (VSI) supplying a six-phase open-end windings motor or/impedance load, with circumstantial failure of one VSI investigated. A simplified level-shifted pulse-width modulation (PWM) algorithm is developed to modulate each couple of three-phase VSI as 3-level output voltage generators in normal operation. The total power of the whole ac drive is shared equally among the four isolated DC sources. The developed post-fault algorithm is applied when there is a fault by one VSI and the load is fed from the remaining three healthy VSIs. In faulty conditions the multilevel outputs are reduced from 3-level to 2-level, but still the system propagates with degraded power. Numerical simulation modelling and experimental tests have been carried out with proposed post-fault control algorithm with three-phase open-end (asymmetrical induction motor/R-L impedance) load. A complete set of simulation and experimental results provided in this paper shows close agreement with the developed theoretical background. |
| first_indexed | 2025-11-14T19:50:02Z |
| format | Article |
| id | nottingham-42784 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:50:02Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-427842020-05-04T20:03:42Z https://eprints.nottingham.ac.uk/42784/ Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition Padmanaban, Sanjeevikumar Grandi, Gabriele Blaabjerg, Frede Wheeler, Patrick Ojo, Joseph Olorunfemi This research article exploits the power management algorithm in post-fault conditions for a six-phase (quad) multilevel inverter. The drive circuit consists of four 2-level, three-phase voltage source inverter (VSI) supplying a six-phase open-end windings motor or/impedance load, with circumstantial failure of one VSI investigated. A simplified level-shifted pulse-width modulation (PWM) algorithm is developed to modulate each couple of three-phase VSI as 3-level output voltage generators in normal operation. The total power of the whole ac drive is shared equally among the four isolated DC sources. The developed post-fault algorithm is applied when there is a fault by one VSI and the load is fed from the remaining three healthy VSIs. In faulty conditions the multilevel outputs are reduced from 3-level to 2-level, but still the system propagates with degraded power. Numerical simulation modelling and experimental tests have been carried out with proposed post-fault control algorithm with three-phase open-end (asymmetrical induction motor/R-L impedance) load. A complete set of simulation and experimental results provided in this paper shows close agreement with the developed theoretical background. Elsevier 2016-03 Article PeerReviewed Padmanaban, Sanjeevikumar, Grandi, Gabriele, Blaabjerg, Frede, Wheeler, Patrick and Ojo, Joseph Olorunfemi (2016) Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition. Engineering Science and Technology, an International Journal, 19 (1). pp. 31-39. ISSN 2215-0986 Dual three-phase motor; Multilevel inverter; Multi-phase motor drive; Open-end winding; Post-fault tolerance; Multilevel PWM; Level-shifted PWM http://www.sciencedirect.com/science/article/pii/S2215098615001081 doi:10.1016/j.jestch.2015.07.007 doi:10.1016/j.jestch.2015.07.007 |
| spellingShingle | Dual three-phase motor; Multilevel inverter; Multi-phase motor drive; Open-end winding; Post-fault tolerance; Multilevel PWM; Level-shifted PWM Padmanaban, Sanjeevikumar Grandi, Gabriele Blaabjerg, Frede Wheeler, Patrick Ojo, Joseph Olorunfemi Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition |
| title | Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition |
| title_full | Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition |
| title_fullStr | Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition |
| title_full_unstemmed | Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition |
| title_short | Analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition |
| title_sort | analysis and implementation of power management and control strategy for six-phase multilevel ac drive system in fault condition |
| topic | Dual three-phase motor; Multilevel inverter; Multi-phase motor drive; Open-end winding; Post-fault tolerance; Multilevel PWM; Level-shifted PWM |
| url | https://eprints.nottingham.ac.uk/42784/ https://eprints.nottingham.ac.uk/42784/ https://eprints.nottingham.ac.uk/42784/ |