Characteristics Assessment and Comparative Study of a Segmented-Stator Permanent-Magnet Hybrid-Excitation SRM Drive With High-Torque Capability

Ding, Wen; Fu, Hong; Hu, Yupu

doi:10.1109/tpel.2017.2665118

Cited by 47 publications

(10 citation statements)

References 33 publications

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“…In order to improve the fault-tolerant capability, segmented stator is increasingly employed to machine [29][30][31][32][33][34][35][36][37]. In [35], Li and Zhu et al introduced the flux gaps into the stator teeth of modular PM machines, which formed novel modular machine topology as shown in Fig.…”

Section: B Modular Statormentioning

confidence: 99%

“…Also, some general rules considering winding factor, air gap flux density, flux focusing/defocusing effects and slot and pole number combinations were established. As presented in [29][30][31][32][33][34][35][36][37], the modular stator design technique for improving fault-tolerant capability is effectively employed in the conventional PM machines. Considering the merits of the new class of stator-PM machines [4], [38][39][40], the modular stator design was also utilized for the stator-PM machines, including flux reversal PM (FRPM) and flux switching PM (FSPM) machines.…”

Section: B Modular Statormentioning

confidence: 99%

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Overview of permanent-magnet fault-tolerant machines: Topology and design

Zhao

2018

Trans. Electr. Mach. Syst.

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Permanent-magnet (PM) machines have attracted a lot of interest in various applications since they have the merits of high torque density, high power density and high efficiency. However, issue of poor fault tolerance of the conventional PM machines restricts their practical applications in the field of safety-critical applications, e.g. aerospace, electric vehicle, electrical propulsion and wind power generator applications. An enormous amount of work has been done to improve the faulttolerant capability of PM machines. This paper will review research work on PM fault-tolerant machines up-to-date, including modular design, short-circuit current limitation design, redundant design, ease of thermal dissipation of PM design, and torque enhancement design techniques. The work of this paper can provide some references for future studies and engineering applications of PM fault-tolerant machines for safety-critical applications.

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Section: B Modular Statormentioning

confidence: 99%

Section: B Modular Statormentioning

confidence: 99%

Overview of permanent-magnet fault-tolerant machines: Topology and design

Zhao

2018

Trans. Electr. Mach. Syst.

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“…The research shows that the torque of PMA-VFR motor can be increased under the joint action of excitation winding and auxiliary permanent magnet, and the excitation winding can easily adjust the magnetic field. In [15], another HESM was proposed. The permanent magnet in this structure is opposite and parallel to the coil, and the torque is increased due to the magnetic field contribution of the permanent magnet.…”

Section: Introductionmentioning

confidence: 99%

A New Rotor Dislocation Permanent Magnet Assisted High Speed Reluctance Motor for Improving Power Density and Reducing Torque Ripple

et al. 2022

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Switched reluctance motor has been widely used in various fields because of its simple, solid structure and high reliability. However, the disadvantage of large torque ripple limits its application in highspeed occasions. In this paper, a new type of rotor dislocation permanent magnet assisted high-speed reluctance motor (RDPMA-HSRM) is proposed, which realizes the axial magnetic flux through the structure of two groups of stator and rotor, and a permanent magnet is connected in series for auxiliary excitation. On this basis, the rotor dislocation is developed and a unique structural design is developed. The working principle of the motor is explained, the magnetic circuit model of the motor is analyzed, the mathematical model of the motor is given, and the contribution of permanent magnet assistance to torque is discussed. The magnetic characteristics of the motor in terms of flux density, flux linkage, inductance and torque are obtained by finite element simulation, and compared with the characteristics of the improved motor. The effects of rotor misalignment and permanent magnet auxiliary excitation on the performance of the motor are analyzed. Finally, the prototype is tested and the experimental results are obtained. Simulation and experimental results show the RDPMA-HSRM has smaller torque ripple and higher torque density INDEX TERMS Torque ripple, rotor dislocation, permanent magnet assisted, axial flux, high speed

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“…It is illustrated that the proposed motor has better torque characteristics than its PM-less counterpart thanks to the air-gap flux density increment created by the embedded PMs. Additionally, in [18], Ding et al have proposed another PMSRM with the same stator as in [17] but with a different number of rotor poles. The results show that the proposed 12/10 PMSRM outperforms the conventional SRM in terms of the average torque.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive study on divided‐teeth and permanent magnet assisted outer‐rotor switched reluctance motors

Farahani

Mirsalim

2020

IET Electric Power Applications

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A comprehensive study on divided‐teeth permanent‐magnet assisted outer‐rotor switched reluctance motors (SRMs) is carried out. Foremost, it looks into the impact of the number of teeth per stator pole. The average and maximum torque profiles of the compared structures are obtained using finite‐element simulations. It is shown that as the number of teeth increases, higher torque is obtained. Then, six small PMs are inserted inside the teeth of neighbouring modules to form new hybrid reluctance motors (HRMs). The four permanent‐magnet assisted SRMs are compared in terms of the average and maximum torques using finite‐element simulations. Based on the comparison results, the 48/50 HRM is selected as the best candidate among all compared SRMs and HRMs. The magnetic flux density distributions, static torque, and flux linkage characteristics of the proposed HRM are obtained. Moreover, the cogging torque profile of the motor is obtained, which approximates to zero. Next, the steady‐state performances of the proposed HRM are obtained under low‐ and high‐operating speeds. Finally, a prototype of the machine is constructed and the test results are obtained and compared with those of the simulations, which show that there is a good agreement between these results.

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Characteristics Assessment and Comparative Study of a Segmented-Stator Permanent-Magnet Hybrid-Excitation SRM Drive With High-Torque Capability

Cited by 47 publications

References 33 publications

Overview of permanent-magnet fault-tolerant machines: Topology and design

Overview of permanent-magnet fault-tolerant machines: Topology and design

A New Rotor Dislocation Permanent Magnet Assisted High Speed Reluctance Motor for Improving Power Density and Reducing Torque Ripple

Comprehensive study on divided‐teeth and permanent magnet assisted outer‐rotor switched reluctance motors

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