Computer-aided Design and Experiment Research of New Type Permanent Magnet Synchronous Motor

Zhang, Haoming; Sun, Yukun

doi:10.1142/9789812799524_0316

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Halbach Array Introduction and Its Feature1

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2014

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“…Halbach Array is a new type of permanent magnet structure released by K.Halbach [1][2][3][4], a well-known scholar of American Berkeley Lab. Halbach array model and its finite element analysis are shown in figure1, the arrow stands for the magnetization direction of permanent magnet.…”

Section: Halbach Array Introduction and Its Featurementioning

confidence: 99%

Research of Halbach Array’s Influence on Permanent Magnet Synchronous Motor’s Performance

Zhang

Peh³

2014

AMM

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The present motors are required to high speed, high efficiency, high power density but low pulsating torque. Traditonal rare-earth permanent magnet motor shows its defect; Halbach Array is a new type of permanent magnet structure: magnet field presents unilateral with the sinusoidal distribution. The structure makes the magnetic density of motor’s air gap larger relatively while the magnetic density of rotor’s yoke smaller. And it can help to reduce the motor’s pulsating torque and its size, as well as to raise the power density of motor. The result of finite element analysis based on ANSYS shows that the above structure is able to decrease the mass of motor, to widen the width of air gap and obviously to improve the multi properties of motors.

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Section: Halbach Array Introduction and Its Featurementioning

confidence: 99%