2019
DOI: 10.1002/tee.22891
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Design and control of variable field permanent magnet motors

Abstract: This is a survey paper focusing on permanent magnet motors with variable field capability. The synchronous motors, which have been applied to somewhat limited fields, have garnered attention as attractive electric drives. Due to a connection with rare‐earth magnet and power electronics‐based flexible control, current permanent magnet synchronous motors have achieved the best position in terms of high power and torque densities, high efficiency and flexible control capability. In order to satisfy the diverse de… Show more

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Cited by 9 publications
(5 citation statements)
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“…The flux bridge is placed in the middle of the rotor to change the direction of magnetic flux distribution. Dr. Nakai proposed a new type of variable magnetic field circular wound permanent magnet motor [12]. The rotor of the motor is composed of a permanent magnet and a salient pole iron core, forming a clockwise pole structure.…”
Section: Introductionmentioning
confidence: 99%
“…The flux bridge is placed in the middle of the rotor to change the direction of magnetic flux distribution. Dr. Nakai proposed a new type of variable magnetic field circular wound permanent magnet motor [12]. The rotor of the motor is composed of a permanent magnet and a salient pole iron core, forming a clockwise pole structure.…”
Section: Introductionmentioning
confidence: 99%
“…Variable magnetic flux motors have been proposed to realize high-efficiency operation in a wide drive range from high torque to high-speed range [16]- [21]. The variable torque constant is achieved by controlling the amount of field magnetic flux from the outside.…”
Section: Introductionmentioning
confidence: 99%
“…In recent decades, permanent magnet synchronous motors (PMSMs) are widely used in many industrial applications (e.g., robot industry, petroleum industry, electric and hybrid vehicles, wind energy, and air conditioning applications) [1,2]. The main advantages of PMSM compared to other electrical machines are due to the high torque density, high efficiency, simple mathematical modeling, easy maintenance, and reliability.…”
Section: Introductionmentioning
confidence: 99%
“…Despite the advantages of this machine, high precision control of the PMSM drive system is rather difficult because its dynamic is complicated and intrinsically nonlinear. In addition, the drive performances are generally deteriorated in practice, influenced by various sources of disturbances and uncertainties, such as nonmodeled dynamics, parameter variation, and external disturbances [1][2][3][4].…”
Section: Introductionmentioning
confidence: 99%