Control Strategy for a Five-Leg Inverter Supplying Dual Three-Phase PMSM

This study presents a novel control strategy for a five-leg inverter-fed dual three-phase permanent-magnet synchronous motor (DT-PMSM)system. Three different five-leg inverter topologies (operating modes) can be reconfigured by choosing a pair of phases for sharing the common leg. The five-leg inver...

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Main Authors: Guoxiu Jing, Changpan Zhou
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9201299/
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author Guoxiu Jing
Changpan Zhou
author_facet Guoxiu Jing
Changpan Zhou
author_sort Guoxiu Jing
collection DOAJ
description This study presents a novel control strategy for a five-leg inverter-fed dual three-phase permanent-magnet synchronous motor (DT-PMSM)system. Three different five-leg inverter topologies (operating modes) can be reconfigured by choosing a pair of phases for sharing the common leg. The five-leg inverter operation mode with 150° phase difference can achieve full torque output, but the utilization of DC bus voltage is low. The operation mode with 30° phase difference has higher DC bus voltage utilization but lower output torque. The modified double zero-sequence injection (DZI) PWM strategy based on carrier-based PWM (CBPWM) for five-leg inverter operating modes is proposed. This strategy can achieve the maximum DC bus voltage utilization. The five-leg inverter operating modes can be used as a fault-tolerant solution for the occurrence of a fault in one leg of the six-leg inverter. Compared with the commonly used open phases fault-tolerant control (FTC) strategies, this strategy has the advantages of without increasing the stator copper, reducing the torque ripples, and implementing easily. Experimental results verify the effectiveness and feasibility of the proposed strategy.
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spelling doaj.art-1f0714c6794248d388de728bc696bd062022-12-21T20:20:22ZengIEEEIEEE Access2169-35362020-01-01817448017448810.1109/ACCESS.2020.30253929201299Control Strategy for a Five-Leg Inverter Supplying Dual Three-Phase PMSMGuoxiu Jing0Changpan Zhou1https://orcid.org/0000-0002-9744-4454School of Electrical Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Electrical Engineering, Xi’an University of Technology, Xi’an, ChinaThis study presents a novel control strategy for a five-leg inverter-fed dual three-phase permanent-magnet synchronous motor (DT-PMSM)system. Three different five-leg inverter topologies (operating modes) can be reconfigured by choosing a pair of phases for sharing the common leg. The five-leg inverter operation mode with 150° phase difference can achieve full torque output, but the utilization of DC bus voltage is low. The operation mode with 30° phase difference has higher DC bus voltage utilization but lower output torque. The modified double zero-sequence injection (DZI) PWM strategy based on carrier-based PWM (CBPWM) for five-leg inverter operating modes is proposed. This strategy can achieve the maximum DC bus voltage utilization. The five-leg inverter operating modes can be used as a fault-tolerant solution for the occurrence of a fault in one leg of the six-leg inverter. Compared with the commonly used open phases fault-tolerant control (FTC) strategies, this strategy has the advantages of without increasing the stator copper, reducing the torque ripples, and implementing easily. Experimental results verify the effectiveness and feasibility of the proposed strategy.https://ieeexplore.ieee.org/document/9201299/Five-leg inverterdual three-phase permanent magnetic synchronous motordouble zero-sequence injection pulse width modulation strategyDC bus voltage utilization
spellingShingle Guoxiu Jing
Changpan Zhou
Control Strategy for a Five-Leg Inverter Supplying Dual Three-Phase PMSM
IEEE Access
Five-leg inverter
dual three-phase permanent magnetic synchronous motor
double zero-sequence injection pulse width modulation strategy
DC bus voltage utilization
title Control Strategy for a Five-Leg Inverter Supplying Dual Three-Phase PMSM
title_full Control Strategy for a Five-Leg Inverter Supplying Dual Three-Phase PMSM
title_fullStr Control Strategy for a Five-Leg Inverter Supplying Dual Three-Phase PMSM
title_full_unstemmed Control Strategy for a Five-Leg Inverter Supplying Dual Three-Phase PMSM
title_short Control Strategy for a Five-Leg Inverter Supplying Dual Three-Phase PMSM
title_sort control strategy for a five leg inverter supplying dual three phase pmsm
topic Five-leg inverter
dual three-phase permanent magnetic synchronous motor
double zero-sequence injection pulse width modulation strategy
DC bus voltage utilization
url https://ieeexplore.ieee.org/document/9201299/
work_keys_str_mv AT guoxiujing controlstrategyforafiveleginvertersupplyingdualthreephasepmsm
AT changpanzhou controlstrategyforafiveleginvertersupplyingdualthreephasepmsm