Numerical Simulation and Experimental Validation of a Flux Switching Permanent Magnet Memory Machine

Chen, Zhongxian; Cui, Yingjie

doi:10.1109/access.2020.3033778

Cited by 5 publications

(11 citation statements)

References 20 publications

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“…Besides, before or after enhanced flux, the total harmonic distortion (THD) of back EMF is nearly constant, which is 1.91% and 1.84%, respectively [16]. This phenomenon will benefit the optimization control of the VFMPM machine.…”

Section: Simulation and Calculationmentioning

confidence: 92%

“…In Figure 1, the structure of rotor and inner stator core is the salient pole type. The operation principle of the VFMPM machine can be seen in [16]. When the relative motion between rotor and stator occurs, the cogging torque will be produced by the theory of magnetic energy variation [20].…”

Section: Theory Analysis Of Cogging Torquementioning

confidence: 99%

“…Therefore, we have investigated and optimized the pole-arc coefficient of the VFMPM machine in Reference [16] comprehensively, and the pole-arc coefficient is determined as 1.2.…”

Section: The Influence Of Pole-arc Coefficient On the Cogging Torquementioning

confidence: 99%

“…The dimension parameters of the VFMPM machine are shown in Table 1. The principle of weakened flux and enhanced flux of the VFMPM machine can be seen in Reference [16].…”

Section: Simulation and Calculationmentioning

confidence: 99%

“…For the VFMPM machine, it has the characteristics of enhanced flux and weakened flux [15,16], which will improve the complexity of the operation control method. Therefore, professor Yang Hui, etc.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Verification of a Cogging Torque Reduction Method for Variable Flux Memory Permanent Magnet Machine

et al. 2021

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In this paper, an analytical method based on the series transform and skewed slot structure of rotor is adopted to reduce the cogging torque of the variable flux memory permanent magnet (VFMPM) machine. Firstly, the theory analysis of the cogging torque of the VFMPM machine was completed. Secondly, a simulation model of the VFMPM machine was established, aiming at calculating the cogging torque of the VFMPM machine and verifying the correctness of the above analytical method. Thirdly, a prototype of 14 rotor slots and 12 stator slots of the VFMPM machine was manufactured, and the experimental results of the cogging torque of the VFMPM machine further verified the effectiveness of the above mentioned theory analysis. Besides, the load force of the VFMPM machine including the cogging torque was also tested and analyzed in this paper.

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Section: Simulation and Calculationmentioning

confidence: 92%

Section: Theory Analysis Of Cogging Torquementioning

confidence: 99%

“…Therefore, we have investigated and optimized the pole-arc coefficient of the VFMPM machine in Reference [16] comprehensively, and the pole-arc coefficient is determined as 1.2.…”

Section: The Influence Of Pole-arc Coefficient On the Cogging Torquementioning

confidence: 99%

“…The dimension parameters of the VFMPM machine are shown in Table 1. The principle of weakened flux and enhanced flux of the VFMPM machine can be seen in Reference [16].…”

Section: Simulation and Calculationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis and Verification of a Cogging Torque Reduction Method for Variable Flux Memory Permanent Magnet Machine

et al. 2021

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Design and Experimental Validation of a New Outer Rotor Double PM Excited Flux Switching Generator for Direct Drive Wind Turbines

Farahzadi,

Ali,

Mirnikjoo

et al. 2024

IEEE Access

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An outer rotor double permanent magnet (PM) excited flux switching generator is designed and optimized in this paper for direct drive wind turbine applications. This generator consists of two sets of PMs: ferrite PMs embedded in the stator yoke and neodymium PMs sandwiched between the rotor segments. In this regard, the main justification for employing ferrite PMs in the stator yoke is that the risk of demagnetization of ferrite PMs at high temperatures is lower than that of neodymium PMs (the temperature of the machine's stationary parts is higher than that of its rotating parts). For the design of the machine, the Taguchi design of experiments is deployed, while a decision-making algorithm based on the technique for order of preference by similarity to the ideal solution is used to solve the contradiction that results from the Taguchi design of experiments in the multi-objective design optimization process. During the multi-objective design optimization steps, simultaneously maximizing the no-load phase voltage and minimizing the cogging torque and total harmonic distortion of the no-load phase voltage are defined as the objective functions. The optimally designed machine is prototyped

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The Study of the Salient Pole Geometry Optimization of the Flux Switching Permanent Magnet Machine

Liu,

Xu,

et al. 2024

Actuators

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The flux switching permanent magnet (FSPM) motor is a stator permanent magnet motor. The typical FSPM motor is doubly salient, which generates torque ripple and affects the rotation smoothness. In this paper, the influence of salient pole geometric sizes on motor torque performance is studied to reduce motor torque ripple and improve motor torque density. First, three indicators are defined to present the motor torque characters, including the average torque, torque ripple, and the volume of permanent magnet material usage. Then, the model of salient pole geometric sizes function to the three indicators is created. With this model, the optimal solution is obtained by the multi-objective numerical optimization. Based on the optimized results, the rotor shape is refined and analyzed as the supplementary to reduce the torque ripple further. Finally, the results show that the optimization procedure in this paper can effectively weaken the torque ripple, reduce the permanent magnet material usage, and improve the average output torque of the motor. Based on the optimized data, the prototype machine is built to verify the analysis results and prove the feasibility of this research.

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Numerical Simulation and Experimental Validation of a Flux Switching Permanent Magnet Memory Machine

Cited by 5 publications

References 20 publications

Analysis and Verification of a Cogging Torque Reduction Method for Variable Flux Memory Permanent Magnet Machine

Analysis and Verification of a Cogging Torque Reduction Method for Variable Flux Memory Permanent Magnet Machine

Design and Experimental Validation of a New Outer Rotor Double PM Excited Flux Switching Generator for Direct Drive Wind Turbines

The Study of the Salient Pole Geometry Optimization of the Flux Switching Permanent Magnet Machine

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