Novel Modular Fractional Slot Permanent Magnet Machines With Redundant Teeth

Li, Y. X.; Thomas, A.; Wu, Zhongze; Wu, Ximeng

doi:10.1109/tmag.2019.2918190

Cited by 18 publications

(10 citation statements)

References 24 publications

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“…The authors in Ref. [21] have proposed and developed the modular fault‐tolerant motor by adding fault‐tolerant teeth between the motor modules. But the fault‐tolerant tooth increases magnetic flux leakage and decreases motor torque.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Modular Permanent Magnet Fault‐Tolerant Motor for Ship Direct‐Drive Propulsion

Gan

Zhang

Guo

2021

IEEJ Transactions Elec Engng

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In the field of ship propulsion, highly reliable propulsion motor is one of the key factors for the stable operation of the drive system. This paper proposes a new modular stator low‐speed high‐torque fault‐tolerant permanent magnet motor (MCS‐PMFTSM) for the direct‐drive ship propulsion system. The unequal‐span winding is used for enhanced fault‐tolerant as well as modular operation of the motor. Each module is isolated electrically and mechanically, while the maintenance procedure is greatly simplified by the structure that uses external radiation installation. Introducing the new structure and operating principle of the MCS‐PMFTSM, the basic size equation of the motor is derived followed by the analysis for the selection of the number of poles and slots. The rotor structure of the motor is then optimized using the genetic algorithm. The finite element method is used to analyze the motor performance under normal and various fault‐tolerant conditions. In addition, the electromagnetic vibration of the proposed motor is also examined under different operating conditions. Finally, a 12 kW 100 r/min 3 × 3 modular prototype is developed to experimentally validate the excellent performance of the proposed motor under both normal and fault‐tolerant operating conditions. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

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Section: Introductionmentioning

confidence: 99%

Design and Analysis of Modular Permanent Magnet Fault‐Tolerant Motor for Ship Direct‐Drive Propulsion

Gan

Zhang

Guo

2021

IEEJ Transactions Elec Engng

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“…Recent and future research activities include the development of modular MTP PMSMs [48][49][50], and high-phase MTP (such as 9, 12, and 15 phases) PMSMs for high fault tolerance applications [33,34,36], field modulation and magnetic gearing effects in MTP PMSMs [190], advanced control techniques for MTP (>DTP) PMSMs, novel parameter identifications, sensorless control, and fault tolerance control techniques. For the DTP machine fed by two segment three-phase inverter, as studied in [192,193], the vibration and acoustic noise of switching frequency can be reduced to hal after shifting π/2 phase angle of the PWM carrier of the second set.…”

Section: Future Workmentioning

confidence: 99%

Advances in Dual-Three-Phase Permanent Magnet Synchronous Machines and Control Techniques

et al. 2021

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Multiphase electrical machines are advantageous for many industrial applications that require a high power rating, smooth torque, power/torque sharing capability, and fault-tolerant capability, compared with conventional single three-phase electrical machines. Consequently, a significant number of studies of multiphase machines has been published in recent years. This paper presents an overview of the recent advances in multiphase permanent magnet synchronous machines (PMSMs) and drive control techniques, with a focus on dual-three-phase PMSMs. It includes an extensive overview of the machine topologies, as well as their modelling methods, pulse-width-modulation techniques, field-oriented control, direct torque control, model predictive control, sensorless control, and fault-tolerant control, together with the newest control strategies for suppressing current harmonics and torque ripples, as well as carrier phase shift techniques, all with worked examples.

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“…The stator module combined structure with redundant teeth is adopted in Ref. [12]. The winding phase separation is complicated, and each module cannot operate independently.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic design and thermal analysis of module combined permanent magnet motor with wrapped type for mine ball mill

Zhang

Guo

2021

IET Electric Power Appl

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With the large-scale development of the ball mill, the direct-drive gearless ball mill has emerged, eliminating the limitation of the transmission torque of large gear. However, it is difficult to process, transport, install and maintain the gearless ball mill because of its vast volume, and the coils cannot be decoupled freely. Therefore, this work proposes a module combined permanent magnet motor with wrapped type for mine ball mill (MBMWT-MCPMM). Based on the principle of removing coils, the stator is modularized. Each module can be regarded as a small rotary motor, which improves the reliability and fault tolerance of the motor. In this work, the structure and general design process of the MBMWT-MCPMM are described, and the electromagnetic performance is simulated and analysed. The influence of different factors on the cooling effect of the motor and the temperature rise of different modules during fault-tolerant operation are analysed. An 80 kW prototype is developed, and its experiments are carried out. The experimental results verify the validity of the related design and analysis.

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Novel Modular Fractional Slot Permanent Magnet Machines With Redundant Teeth

Cited by 18 publications

References 24 publications

Design and Analysis of Modular Permanent Magnet Fault‐Tolerant Motor for Ship Direct‐Drive Propulsion

Design and Analysis of Modular Permanent Magnet Fault‐Tolerant Motor for Ship Direct‐Drive Propulsion

Advances in Dual-Three-Phase Permanent Magnet Synchronous Machines and Control Techniques

Electromagnetic design and thermal analysis of module combined permanent magnet motor with wrapped type for mine ball mill

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