Calibration and zero adjustment system of rotating transformer of permanent magnet synchronous motor and operation method thereof

A permanent magnet synchronous motor and resolver technology, which is applied to electronic commutators, electrical components, electromechanical devices, etc., can solve the problems of unfavorable mass production of motors and the lack of zero calibration of the resolver of permanent magnet synchronous motors.

Active Publication Date: 2009-12-30
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, there are the following technical problems in the prior art: the resolver of the permanent magnet synchronous motor has not been zero-calibrated after installation, which is not conducive to the mass production of the motor

Method used

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  • Calibration and zero adjustment system of rotating transformer of permanent magnet synchronous motor and operation method thereof
  • Calibration and zero adjustment system of rotating transformer of permanent magnet synchronous motor and operation method thereof

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Embodiment Construction

[0042] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment among various implementations of the present invention.

[0043] like figure 1 Shown: The resolver rotor part is installed and fixed on the motor shaft, and the resolver stator part is installed on the motor end shell. After the resolver stator is pre-installed, the three screws are not tightened. At this time, the resolver stator will only produce axial Turn, and after the resolver is accurately zeroed, tighten the screws to fix the resolver stator on the motor housing.

[0044] like figure 2 Shown:

[0045] Resolver Coarse Zero:

[0046] According to the zero point angle of the three-phase opposite electromotive force designed by the motor, the main control computer gives an angle command to the precision servo motor control unit, and controls the precision servo motor to drive the shift fork to give a preliminary angle positioning to the...

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Abstract

The invention relates to a calibration and zero adjustment system of a rotating transformer of a permanent magnet synchronous motor and an operation method thereof. When the permanent magnet synchronous motor is mounted, the system performs zero point calibration and zero adjustment on the rotating transformer, and the mounted permanent magnet synchronous motor is in accordance with zero point of the angular position of the rotating transformer, thus facilitating batch production.

Description

technical field [0001] The invention relates to a permanent magnet synchronous motor rotary transformer calibration and zero adjustment system and its operation method. Background technique [0002] Compared with DC motors, induction motors, and ordinary synchronous motors, permanent magnet synchronous motors (PMSM) have higher energy density and efficiency. They have the advantages of small size, low inertia, fast response, and flexible control. They have gradually become AC servo systems. The mainstream of executive motors, especially in the field of power servo systems that require high precision and high performance. The control method it usually adopts is vector control at low speed and field weakening control at high speed. The vector control of the permanent magnet synchronous motor requires accurate real-time detection of the absolute angular position of the rotor. The resolver is referred to as a resolver. It has the advantages of resistance to harsh environments, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/00H02P6/14H02P6/18H02K11/30
Inventor 吴瑞冯勇陈立冲王跃
Owner CHERY AUTOMOBILE CO LTD
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