Semi-Analytical Calculation of No-Load Radial and Tangential Electromagnetic Force Waves of a Non-Salient Pole Synchronous Generator

Su, Wu; Guo, Yanjie; Wang, Dong

doi:10.1109/tec.2021.3067041

Cited by 7 publications

(1 citation statement)

References 19 publications

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“…Compared with integer slot PM motors, fractional slot PM motors have lower spatial order of electromagnetic force and electromagnetic vibration and noise problems are more prominent [9]- [11]. Electromagnetic force wave is the main source of electromagnetic vibration of motors, the quantitative calculation and analysis of the law of electromagnetic force wave is the basis for the study of electromagnetic vibration of motors [12], [13] Unlike the PM motor with inner rotor, the electromagnetic vibration of the PM motor with external rotor is caused by the electromagnetic force acting on the surface of the permanent magnet by the air gap magnetic field [14], [15]. In this paper, the prototype is a turntable motor, which has strict requirements on electromagnetic vibration and torque density.…”

Section: Introductionmentioning

confidence: 99%

Parameter Sensitivity Analysis and Optimization of Electromagnetic Force Waves of Fractional Slot Surface-Mounted PM Motor With External Rotor

Xia,

Qi,

Dong

et al. 2023

IEEE Access

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For PM motor with external rotor, the electromagnetic force wave acting on the surface of the permanent magnet by the air gap magnetic field is the main cause of its electromagnetic vibration. In this paper, an optimization method based on parameter sensitivity for electromagnetic force wave of fractional slot surface-mounted PM motor with external rotor is proposed. Firstly, taking a fractional slot surfacemounted PM motor with external rotor as the research object, Latin Hypercube Design (LHD) is carried out with six structural parameters as design variables, including pole arc coefficient, notch width, air gap length, permanent magnet thickness, tooth width and slot depth, and the parameter sensitivity of different design variables to the average torque and the main radial electromagnetic force wave amplitude is analyzed. Secondly, based on the experimental results of Latin Hypercube Design, a mathematical approximation model is established by using radial basis function neural network method. Then, with the aim of improving the average torque and reducing the amplitude of the main radial electromagnetic force wave, neighborhood cultivation genetic algorithm is applied to optimize the structure of the motor. Finally, the optimized motor scheme is simulated by finite element simulation to verify the feasibility and accuracy of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Parameter Sensitivity Analysis and Optimization of Electromagnetic Force Waves of Fractional Slot Surface-Mounted PM Motor With External Rotor

Xia,

Qi,

Dong

et al. 2023

IEEE Access

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Analysis and calculation of electromagnetic force of stator winding and damping bar during dynamic loading of pumped storage generator/motor

Tao,

Dai,

et al. 2024

IET Electric Power Appl

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Frequently and rapidly dynamic conversion is one of the main differences between pumped‐storage motor and general hydro‐generator. In the process of changing operating conditions, in order to achieve fast dynamic conversion, the loading rate requirement of pumped storage motors is often much higher than that of conventional generators, which brings great impact on the key structural components of generators, it affects the safe operating life of motors directly. To solve the impact of dynamic loading rate on key structural components of pumped storage motors, for a pumped storage motor as an example, investigating different loading rates during the dynamic conversion of two main operating conditions on pumped storage motors (power generation and electric power) of pumped storage motors are investigated. Calculating accurately the distribution laws of electromagnetic forces of key structural components which contains stator tooth walls and damping strips during dynamic loading. The results show that the different loading rates will affect the force distribution of the key position directly, under the condition of generator state and motor state, the distribution of force on stator winding and damping bar present different laws, it will provide reference for the determination of multi‐state conversion loading rate of pumped storage motor and the improvement of pumped storage motor structure scheme.

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Torque Analytical Calculation of Formed Winding Permanent Magnet Motor

et al. 2023

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Semi-Analytical Calculation of No-Load Radial and Tangential Electromagnetic Force Waves of a Non-Salient Pole Synchronous Generator

Cited by 7 publications

References 19 publications

Parameter Sensitivity Analysis and Optimization of Electromagnetic Force Waves of Fractional Slot Surface-Mounted PM Motor With External Rotor

Parameter Sensitivity Analysis and Optimization of Electromagnetic Force Waves of Fractional Slot Surface-Mounted PM Motor With External Rotor

Analysis and calculation of electromagnetic force of stator winding and damping bar during dynamic loading of pumped storage generator/motor

Torque Analytical Calculation of Formed Winding Permanent Magnet Motor

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