Multilevel Design Optimization and Operation of a Brushless Double Mechanical Port Flux-Switching Permanent-Magnet Motor

Xiang, Zixuan; Zhu, Xiaoyong; Quan, Li; Du, Yi; Zhang, Chao; Fan, Deyang

doi:10.1109/tie.2016.2571268

Cited by 162 publications

(73 citation statements)

References 25 publications

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“…In general, to improve the performance of electrical machines, many optimization methods can be employed, such as the intelligent optimization algorithms, multilevel, multiobjective and multidisciplinary optimization methods [25][26][27][28][29][30][31][32][33]. For the optimization of the investigated FSPMM under manufacturing variations, this is a kind of robust design optimization problem.…”

Section: Taguchi Parameter Design Methodsmentioning

confidence: 99%

Robust Design of a Low-Cost Permanent Magnet Motor with Soft Magnetic Composite Cores Considering the Manufacturing Process and Tolerances

Liu

Lei

et al. 2018

Energies

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This paper uses the Taguchi method to optimize the manufacturing process and robust design of a low-cost permanent magnet motor with soft magnetic composite (SMC) cores. For the manufacturing process, SMC cores are produced by using the molding technology without any wire cutting costs. To maximize the relative permeability and minimize the core loss, the Taguchi method is employed to identify the best control factor values for the heat treatment of SMC cores based on a series of experimental results. Due to the manufacturing tolerances, there are significant uncertainties in the core densities and motor dimensions, which will result in big performance variations for the SMC motors in the batch production. To obtain a robust design less sensitive to these tolerances, the conventional Taguchi parameter design method and a sequential Taguchi optimization method are presented to maximize the average torque and minimize the core loss of a low-cost PM motor. Through comparison, it is found that the proposed optimization method is efficient. It can provide an optimal design with better motor performance and manufacturing quality. The proposed method will benefit the industrial production of cost-effective PM-SMC motors with robust and compact designs.

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Section: Taguchi Parameter Design Methodsmentioning

confidence: 99%

Robust Design of a Low-Cost Permanent Magnet Motor with Soft Magnetic Composite Cores Considering the Manufacturing Process and Tolerances

Liu

Lei

et al. 2018

Energies

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show abstract

“…Moreover, λ1, λ2, and λ3 are weight coefficients of three objectives according to the importance degree in electrical vehicles, and they are separately selected to be 0.4, 0.3, and 0.3 [3]. Then, variable sensitivities are calculated and listed in Table 1.…”

Section: Multilevel Design Optimizationmentioning

confidence: 99%

“…Benefiting from the high energy permanent magnet (PM) excitation and flux-concentration effect, flux-switching PM (FSPM) machines usually possess the advantages of high power density and high efficiency [1][2][3][4][5][6][7]. However, FSPM machines suffer from a limited constant power operation range due to the uncontrollable PM excitation field, which restricts the applications in variable speed drive systems requiring wide-speed operation [8,9].…”

Section: Introductionmentioning

confidence: 99%

Comparative Investigation of Hybrid Excitation Flux Switching Machines

Wang

et al. 2018

Energies

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In this paper, the effect of partitioned stator (PS) structure and iron flux bridges in hybrid excitation flux switching (HEFS) machines is comprehensively discussed and compared. Firstly, the operating principles of four HEFS machines with single stator and PS respectively with and without iron flux bridges are described. Then an equivalent lumped parameter magnetic circuit model is developed to analyze the characteristics of PS structure and iron flux bridges. In order to achieve a fair comparison among different HEFS machines, the multi-level design optimization method is used to obtain the optimal parameters efficiently, based on which the electromagnetic performances of four machines are comprehensively evaluated by using 2D finite element analysis (2D-FEA). The results reveal that the machines with PS structure can exhibit not only a better flux regulation capability but also a higher torque density than conventional HEFS machines. Moreover, by adopting iron flux bridges, enlarged wide constant power speed region (CPSR) can be achieved, but the PM utilization will be slightly sacrificed.

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“…In recent years, the flux-switching permanent magnet (FSPM) motors where permanent magnets locate on the stator, which also have the advantages of high power density and high efficiency. Therefore, FSPM motors have been investigated extensively [6][7][8][9][10][11]. The rotor structure is simple in this type of motor, with neither permanent magnets nor winding, and the rotor inertia is small, so they are suitable for high-speed operation and have potential applications in EVs [12].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Performance Evaluation of an Outer-Rotor Flux-Switching Permanent Magnet Motor Based on Electrical-Thermal Two-Way Coupling Method

et al. 2017

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Flux-switching permanent magnet (FSPM) motors have gained increasing attention in electric vehicles (EVs) applications due to the advantages of high power density and high efficiency. However, the heat sources of both permanent magnet (PM) and armature winding are located on the limited stator space in the FSPM motors, which may result in the PM overheating and irreversible demagnetization caused by temperature rise, and it is often ignored in the conventional thermal analysis. In this paper, a new electrical-thermal two-way coupling design method is proposed to analyze the electromagnetic performances, where the change of PM material characteristics under different temperatures is taken into consideration. First, the motor topology and design equations are introduced. Second, the demagnetization curves of PM materials under different temperatures are modeled due to PM materials are sensitive to the temperature. Based on the electrical-thermal two-way coupling method, the motor performances are evaluated in detail, such as the load PM flux linkage and output torque. The motor is then optimized, and the electromagnetic performances between initial and improved motors are compared. Finally, a prototype motor is manufactured, and the results are validated by experimental measurements.

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Multilevel Design Optimization and Operation of a Brushless Double Mechanical Port Flux-Switching Permanent-Magnet Motor

Cited by 162 publications

References 25 publications

Robust Design of a Low-Cost Permanent Magnet Motor with Soft Magnetic Composite Cores Considering the Manufacturing Process and Tolerances

Robust Design of a Low-Cost Permanent Magnet Motor with Soft Magnetic Composite Cores Considering the Manufacturing Process and Tolerances

Comparative Investigation of Hybrid Excitation Flux Switching Machines

Electromagnetic Performance Evaluation of an Outer-Rotor Flux-Switching Permanent Magnet Motor Based on Electrical-Thermal Two-Way Coupling Method

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