Thrust fluctuation active compensation type linear permanent magnet synchronous motor

A permanent magnet synchronous motor, thrust fluctuation technology, applied in electrical components, electromechanical devices, propulsion systems, etc., can solve problems such as reducing the effective thrust of the motor, and achieve elimination or reduction of thrust fluctuations, high motor efficiency, and small thrust fluctuations. Effect

Inactive Publication Date: 2012-02-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem that the current method for reducing the thrust fluctuation of the linear motor can only suppress the thrust fluctuation of the motor to a certain extent, and at the same time reduce the effective thrust of the motor, and provides a thrust fluctuation active compensation linear permanent magnet synchronous motor

Method used

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  • Thrust fluctuation active compensation type linear permanent magnet synchronous motor
  • Thrust fluctuation active compensation type linear permanent magnet synchronous motor
  • Thrust fluctuation active compensation type linear permanent magnet synchronous motor

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Experimental program
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specific Embodiment approach 1

[0053] Specific implementation mode one: the following combination Figure 1 to Figure 5Describe this embodiment, the thrust fluctuation active compensation linear permanent magnet synchronous motor described in this embodiment includes a primary and a secondary, an air gap between the primary and the secondary, the primary includes an armature core 1-1 and an electric motor An armature winding 1-2, the armature winding 1-2 is a surface mount structure,

[0054] The primary also includes a thrust fluctuation compensation unit, which is composed of a compensation core 1-3, a compensation winding 1-4 and a compensation controller,

[0055] Compensation core 1-3 is a slotted structure, compensation core 1-3 is fixedly connected with armature core 1-1, compensation winding 1-4 is wound on all compensation teeth of compensation core 1-3, and the lead-out of compensation winding 1-4 Connect the current output terminal of the compensation controller with a line;

[0056] The compen...

specific Embodiment approach 2

[0060] Specific implementation mode two: the following combination Figure 1 to Figure 5 Describe this embodiment, the thrust fluctuation active compensation linear permanent magnet synchronous motor described in this embodiment includes a primary and a secondary, an air gap between the primary and the secondary, the primary includes an armature core 1-1 and an electric motor The armature winding 1-2, the primary is a slotted structure, the armature winding 1-2 is embedded in the slot of the armature core 1-1,

[0061] The primary also includes a thrust fluctuation compensation unit, which is composed of a compensation core 1-3, a compensation winding 1-4 and a compensation controller,

[0062] Compensation core 1-3 is a slotted structure, compensation core 1-3 is fixedly connected with armature core 1-1, compensation winding 1-4 is wound on all compensation teeth of compensation core 1-3, and the lead-out of compensation winding 1-4 Connect the current output terminal of the...

specific Embodiment approach 3

[0067] Specific implementation mode three: the following combination Figure 1 to Figure 5 Describe this embodiment, the thrust fluctuation active compensation linear permanent magnet synchronous motor described in this embodiment includes a primary and a secondary, an air gap between the primary and the secondary, the primary includes an armature core 1-1 and an electric motor An armature winding 1-2, the armature winding 1-2 is a surface mount structure,

[0068] The primary also includes a thrust fluctuation compensation unit, which is composed of a compensation core 1-3 and a compensation winding 1-4,

[0069] Compensation core 1-3 is a slotted structure, compensation core 1-3 is fixedly connected with armature core 1-1, compensation winding 1-4 is wound on all compensation teeth of compensation core 1-3, compensation winding 1-4 is connected with phase The armature windings 1-2 on the teeth adjacent to the armature core 1-1 are connected in series;

[0070] The compensa...

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Abstract

The invention discloses a thrust fluctuation active compensation type linear permanent magnet synchronous motor and belongs to the technical field of motors. By the thrust fluctuation active compensation type linear permanent magnet synchronous motor, the problems that the thrust fluctuation of a linear motor can be only restrained to a certain extent and an effective thrust of the motor can be reduced by using the conventional method for reducing the thrust fluctuation of the linear motor are solved. An air gap is formed between a primary and a secondary; the primary comprises an armature core and an armature winding; and the armature winding of the primary has a surface mounted structure or the primary has a tooth groove structure. The thrust fluctuation generated by a thrust fluctuation compensation unit arranged at the end of the armature core is counteracted with the thrust fluctuation generated by the linear permanent magnet synchronous motor by controlling current of a compensation winding through a compensation controller or by serially connecting the compensation winding and the armature winding; therefore, an aim of actively eliminating or reducing the thrust fluctuation of the linear motor can be fulfilled. The invention is applicable to linear permanent magnet synchronous motors.

Description

technical field [0001] The invention relates to a thrust fluctuation active compensation linear permanent magnet synchronous motor, which belongs to the technical field of motors. Background technique [0002] Thrust fluctuations are the cause of vibration and noise of linear motors, especially when the motor is running at low speed, thrust fluctuations may cause resonance, thereby deteriorating the servo operation characteristics of the motor, such as positioning accuracy. [0003] There are many reasons for the thrust fluctuation of the linear motor, including the thrust fluctuation caused by the end effect and the cogging effect, the influence of the manufacturing accuracy of the linear motor on the thrust output of the linear motor, and the mismatch between the phase current rectification waveform and the coil. The thrust output of the linear motor changes. [0004] For permanent magnet linear motors, due to the existence of the longitudinal end of the primary iron core...

Claims

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Application Information

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IPC IPC(8): H02K41/03
Inventor 寇宝泉张鲁张赫
Owner HARBIN INST OF TECH
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