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Driving method of single-winding stator permanent magnetic flux switching motor capable of reducing suspension current

A technology of magnetic flux switching motor and driving method, which is applied in the direction of electronic commutation motor control, motor generator control, control generator and other directions, and can solve the problem of large amplitude of the suspended current component.

Active Publication Date: 2018-05-18
FUZHOU UNIV
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Problems solved by technology

But the invention patent [CN201410499575.2] has the defect that the amplitude of the levitation current component at the local rotor position is too large

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  • Driving method of single-winding stator permanent magnetic flux switching motor capable of reducing suspension current
  • Driving method of single-winding stator permanent magnetic flux switching motor capable of reducing suspension current
  • Driving method of single-winding stator permanent magnetic flux switching motor capable of reducing suspension current

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Embodiment Construction

[0046] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0047] In order to avoid the deficiencies of the prior art, the present invention proposes a driving method for a single-winding bearingless magnetic flux switching motor that reduces levitation current. First, in order to reduce the instantaneous peak value of levitation current, a six-phase single-winding bearingless flux switching motor is proposed; then, based on the proposed motor, a driving method for its rotor levitation operation is proposed. The purpose is to reduce the levitation current amplitude of the existing single winding bearingless flux switching motor drive system. The cross-section of the proposed six-phase single-winding bearingless flux switching motor is shown in figure 1 shown.

[0048] Adopt A~F six-phase single-winding structure. After deducting the winding, the cross-section of the motor is the same as that of...

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Abstract

The invention relates to a driving method of a single-winding stator permanent magnetic flux switching motor capable of reducing suspension current. Firstly, in order to reduce an instantaneous peak value of suspension current, a six-phase single-winding bearingless magnetic flux switching motor is proposed; then, based on the proposed motor, a rotor suspension driving method is proposed, and theaim is to reduce an amplitude value of suspension current of the existing driving system of the single-winding stator permanent magnetic flux switching motor. The driving method greatly reduces the amplitude value of suspension current, and promotes the load capacity of the motor driving and the reliable operation capacity of the driving system.

Description

technical field [0001] The invention relates to a driving method for a single-winding stator permanent-magnet flux switching motor with reduced levitation current. Background technique [0002] The permanent magnet of the stator permanent magnet flux switching motor is located on the stator, and the heat is easily dissipated, which effectively avoids the risk of demagnetization caused by the temperature rise of the permanent magnet; and the rotor of this type of motor only has a salient pole core structure, which is convenient for high-speed operation. However, the traditional mechanical bearing support structure limits its high-speed operation, and there are also pollution problems caused by mechanical wear. For this reason, some scholars have proposed some bearingless motor structures and their drive control methods for this kind of motor in recent years. Generally, the proposed bearingless motor structure can be divided into two types: double-winding and single-winding. ...

Claims

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Application Information

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IPC IPC(8): H02P21/22H02P25/22
Inventor 周扬忠郑梦飞钟天云
Owner FUZHOU UNIV
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