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Control device and control method

A control device and control method technology, applied in the direction of single motor speed/torque control, electronic commutator, etc., can solve the problems of large volume of position sensor, complex structure of the whole motor, poor anti-disturbance ability, etc., and achieve detection High precision, improve the efficiency and stability of the whole machine, and the effect of small space structure

Inactive Publication Date: 2016-02-10
HUBEI HAISHAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Due to the large size of the position sensor, poor anti-interference ability, complex structure, and high cost, the motor has complex structure, difficult maintenance, unstable performance, and high manufacturing costs.

Method used

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  • Control device and control method
  • Control device and control method

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Embodiment Construction

[0047] In view of the technical problems of complex structure, unstable performance and high cost of the whole motor when the position sensor is used to detect the position of the rotor in the drive technology of the ironless disc motor in the prior art, the present invention proposes the use of the rotorless position sensor Control technology is used to detect the position of the rotor, thereby avoiding the above-mentioned technical problems in the prior art, improving the reliability of the performance of the motor as a whole, and reducing the cost.

[0048] In order to make the purpose and features of the present invention more comprehensible, the specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0049] See figure 1 , which is a schematic structural diagram of a control device for controlling a motor provided by an embodiment of the present invention.

[0050] The control device, used for...

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Abstract

The invention discloses a control device and a control method which are used for controlling a motor. The motor comprises a stator winding and a rotor. The control device comprises an inverter circuit, a position detection circuit and a controller, and is characterized in that the inverter circuit is connected with the stator winding and used for providing phase voltage for the stator winding; the position detection circuit is connected with the stator winding and used for detecting the position of the rotor and converting position information into electric signals; and the controller is connected with the position detection circuit and the inverter circuit, controls the phase voltage provided by the inverter circuit for the stator winding according to the electric signals, enables the stator winding to generate magnetic field variations, and thus drives the rotor to rotate.

Description

technical field [0001] The invention relates to the technical field of machinery and electronics, and in particular to a control device and a control method for controlling a motor. Background technique [0002] The coreless disc motor adopts a stator-free core structure, the stator winding can be equivalent to an air-core inductor, and the permanent magnet rotor is nested on the back plate of the magnetic material; its shape is a flat structure, and the direction of the magnetic flux is axial. [0003] The coreless disc motor has the following characteristics: the axial dimension is short, suitable for occasions requiring strict thin installation; the armature winding coil can be equivalent to an air-core inductor, without cogging, and there is no radial flux structure. Torque ripple caused by slot reaction; there is no core loss, and high efficiency can be achieved; the inductance of the armature winding is small, which is tens of uH; the moment of inertia is large. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/18H02P6/08
Inventor 吴小青游力军段建华
Owner HUBEI HAISHAN TECH CO LTD
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