Fault-Tolerant Control Strategy of Five-Phase Permanent Magnet Machine Based on Compensation in Third Harmonic Frame

Kong, Jinwang; Wang, K.; Zhang, L. F.; Zhang, J. Y.

doi:10.1109/icems.2019.8921867

Cited by 5 publications

(7 citation statements)

References 9 publications

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“…Section 4.2 describes the input power characteristics for all conditions based on mechanical torque and constant engine speed. These waveforms (Figures [12][13][14] show that in the event of a one-phase failure, the nominal torque must be reduced by 22.86% in order to maintain the same input power as in normal operation. We reduced this to 12.86% for unbalanced currents and 8.58% for symmetrical currents by using fault-tolerant control.…”

Section: Discussionmentioning

confidence: 99%

“…According to the waveforms in Section 4. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17], the rated motor torque must be reduced by 59.43% in order to maintain the original power load of the motor phases. When using fault-tolerant control on nonsymmetrical currents, they are reduced by 57.15% and symmetrical currents are reduced by 30.85%.…”

Section: Discussionmentioning

confidence: 99%

“…As a result, it would be most desirable to run a five-phase motor in a pentacle connection and switch to a pentagon connection during fault operation. Other papers [13] provide simulations of a five-phase induction motor operating in single-phase failure mode. As a consequence of these articles, the five-phase induction motor in the star connection may run normally, but with reduced power.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the Properties of a Five-Phase Induction Motor in the Introduction of New Fault-Tolerant Control

2022

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Multiphase electric motors in cooperation with power semiconductor converters belong to the future of electric drives. This is because of their better properties compared to three-phase motors, such as better fault tolerance. How a multiphase motor will behave in a fault state is very important when using such motors in EV and HEV. This is the basis of the research in this article; we investigate the options for operating a five-phase motor in a fault condition in order to improve the drive qualities during fault operation. The complete mathematical expressions of the five-phase induction motor model in the normal operation as well as in fault operation and also the control modification to improve the properties of the drive are presented. The new five-phase field-oriented control is next described, which improves the drive qualities in four-phase operation and is the first fundamental aspect of the study. Another important aspect of the project is the development of a specific control on a real motor, followed by measurements of properties of a five-phase motor in normal and fault operation of one phase without and with control modification to enhance drive characteristics. The qualities and appropriateness of employing a five-phase motor as a drive in EV and HEV are then determined by comparing these results. Finally, a comparison of motor attributes is shown with and without control adjustment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of the Properties of a Five-Phase Induction Motor in the Introduction of New Fault-Tolerant Control

2022

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“…Different from the MT regulation, to get the MC current regulation, the amplitudes of the remaining phase currents are not the same. But the symmetry of the remaining currents still exists, thus the currents are set as Equation ( 12), and with the current set, the torque is further derived as Equation (13). Thus, to satisfy the constraints of zero torque ripple and same average torque, Equation ( 14) can be derived.…”

Section: Current Regulationmentioning

confidence: 99%

“…Meanwhile, the non-adjacent DPOC fault was analyzed in Refs. [13,14]; however, the performance of the machine is not satisfactory. A global fault-tolerant technique based on a mathematical approach that can find the optimal currents under different faulty conditions was proposed in Ref.…”

Section: Introductionmentioning

confidence: 99%

Fault‐tolerant operation for five‐phase permanent magnet synchronous machine drives with five‐phase six‐leg inverter

Wu,

Yi,

Lyu

et al. 2024

IET Electric Power Appl

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Five‐phase permanent magnet synchronous machine (PMSM) can operate under open‐circuit faults with the appropriate current regulations. However, the traditional current regulations based on the five‐phase half‐bridge inverter have to satisfy the constraint of zero neutral point current, which limits the fault‐tolerant performance of the machine. Thus, this paper investigates the current regulation based on the five‐phase six‐leg (FPSL) inverter, which relieves the zero‐neutral point current limitation, and both current regulations considering the maximum torque (MT) and minimum copper loss (MC) are derived under different open‐circuit conditions. The cost of the system has increased, but with the new regulations, better fault‐tolerant operation capability of the machine can be obtained under all kinds of open‐circuit faults. Moreover, with the introduction of the neutral point current, the machine can work under triple‐phase open‐circuit faults. In conclusion, the proposed control scheme based on the FPSL inverter expands the fault‐tolerant operation capability of the five‐phase PMSM. The experiment results prove the effectiveness of the proposed current regulation on increasing average torque or reducing copper loss under fault‐tolerant operation.

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Decentralized Multilevel Inverters Based on SVPWM for Five-Phase Permanent Magnet Synchronous Motor

Nguyen,

Phan,

Nguyen

2024

J. Electr. Eng. Technol.

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Fault-Tolerant Control Strategy of Five-Phase Permanent Magnet Machine Based on Compensation in Third Harmonic Frame

Cited by 5 publications

References 9 publications

Investigation of the Properties of a Five-Phase Induction Motor in the Introduction of New Fault-Tolerant Control

Investigation of the Properties of a Five-Phase Induction Motor in the Introduction of New Fault-Tolerant Control

Fault‐tolerant operation for five‐phase permanent magnet synchronous machine drives with five‐phase six‐leg inverter

Decentralized Multilevel Inverters Based on SVPWM for Five-Phase Permanent Magnet Synchronous Motor

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