Unified Fault-tolerant Control Strategy with Torque Ripple Compensation for Five-phase Permanent Magnet Synchronous Motor Based on Normal Decoupling

Sun, Guodong; Yang, Guangcan; Wang, Yan-Yi; Su, Jinyuan

doi:10.3390/en12061127

Cited by 6 publications

(2 citation statements)

References 18 publications

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“…Note that if s = 1, the upper bridge arm thyristor would be conducted, else the lower bridge arm thyristor is connected. Obviously, there are 2 4 switch states of the inverter. For each switch state, the basic voltage vectors of FPESFTI in α-β space and x-y space can be obtained.…”

Section: Fppmsm Pv Bes Figurementioning

confidence: 99%

“…Generally, the system faults are located in the motor side and inverter side. As for the former, a few fault-tolerant control methods are proposed to improve the steady state and dynamic performance of the system in [4,5]. Furthermore, other fault tolerance methods are successively proposed for inverter, which mainly involve short circuit and open-circuit faults [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Finite‐control‐set model prediction current control of five‐phase permanent magnet synchronous motor based on eight‐switch fault‐tolerant inverter

Zhang

2021

The Journal of Engineering

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The existence of unbalanced voltage and current harmonics is one of the most pressing issues when the failure happens on the inverter, which will render the inverter less reliable or even failed. Therefore, an improved finite-control-set model predictive current control (FCS-MPCC) is proposed for eight-switch fault-tolerant inverter (ESFTI)-driven five-phase permanent magnet synchronous motor (FPPMSM). First, the topological structure of the whole system and the mathematical model of FPPMSM are presented. Second, the unbalance voltage and the predictable current vector of the controlled system are analysed in terms of FCS-MPCC. After that, the information of the corresponding control voltage vector is obtained by utilizing the deadbeat current control, which realizes the partial vector enumeration in the ideal voltage vector plane. Furthermore, the concept of two-step forward prediction is integrated to induce the manipulated variables at next sampling time such that the time delay may be alleviated, whose corresponding minimum cost function is constructed by extra considering the fluctuation of the capacitor voltages. Finally, the comparative simulation studies between the traditional FCS-MPCC and the proposed one are carried out to demonstrate the validity and effectiveness of the proposed method.

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Section: Fppmsm Pv Bes Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Finite‐control‐set model prediction current control of five‐phase permanent magnet synchronous motor based on eight‐switch fault‐tolerant inverter

Zhang

2021

The Journal of Engineering

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Sensorless control for five-phase PMSMs under normal and open-circuit fault conditions using super-twisting sliding mode observers

et al. 2023

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Fault-Tolerant Control of Coil Inter-Turn Short-Circuit in Five-Phase Permanent Magnet Synchronous Motor

Wang

Chen

2020

Energies

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In the five-phase permanent magnet synchronous motor (PMSM) control system, the torque ripple caused by coil inter-turn short-circuit (ITSC)fault will make the motor performance worse. Due to the existence of the short-circuit current in the faulty phase and the third harmonic component in the permanent magnet flux linkage, the electromagnetic torque will contain even-order ripple components when the faulty phase is removed. Torque ripple also cause speed ripple. In this paper, the repetitive controller (RC) is used to perform proportional gain compensation for speed ripple. By designing the RC and connecting RC and proportional integral (PI) controller in parallel for the speed loop, the torque ripple amplitude can be reduced. It can be seen from the simulation and experimental results that the torque ripple suppression strategy based on RC can effectively suppress the torque ripple under ITSC fault.

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Unified Fault-tolerant Control Strategy with Torque Ripple Compensation for Five-phase Permanent Magnet Synchronous Motor Based on Normal Decoupling

Cited by 6 publications

References 18 publications

Finite‐control‐set model prediction current control of five‐phase permanent magnet synchronous motor based on eight‐switch fault‐tolerant inverter

Finite‐control‐set model prediction current control of five‐phase permanent magnet synchronous motor based on eight‐switch fault‐tolerant inverter

Sensorless control for five-phase PMSMs under normal and open-circuit fault conditions using super-twisting sliding mode observers

Fault-Tolerant Control of Coil Inter-Turn Short-Circuit in Five-Phase Permanent Magnet Synchronous Motor

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