Control method for driving permanent magnet synchronous motor base on magnetic field orthotropic control

A permanent magnet synchronous and motor technology, applied in the direction of AC motor control, electronic commutation motor control, control of generators, etc., can solve problems such as massive calculations, high requirements for controller processing capacity, and occupation of system resources, etc., to achieve the control link Reduce, shorten the control cycle, improve the effect of calculation accuracy

Inactive Publication Date: 2009-01-28
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the mutual transformation operations of vectors between coordinate systems, such as CLARK, inverse CLARK, PARK and inverse PARK

Method used

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  • Control method for driving permanent magnet synchronous motor base on magnetic field orthotropic control
  • Control method for driving permanent magnet synchronous motor base on magnetic field orthotropic control
  • Control method for driving permanent magnet synchronous motor base on magnetic field orthotropic control

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Embodiment Construction

[0035]The present invention will be further described below in conjunction with the drawings and examples, but the protection scope of the present invention is not limited to the range expressed in the examples.

[0036] as attached Figure 5 As shown, the drive control device of the permanent magnet synchronous motor based on the quadrature control of the magnetic field in the present invention includes a rectification unit 1, an inverter 2, a permanent magnet synchronous motor 3, a rotor position encoder 4, a current sensor 5, a control unit 6, an operating Unit 7, display alarm unit 8 and host computer 9. The rectifier unit 1 is connected to the permanent magnet synchronous motor through the inverter 2, the input terminals of the rotor position encoder 4 and the current sensor 5 are respectively connected to the permanent magnet synchronous motor 3, and the output terminals are respectively connected to the control unit 6, and the control unit 6 is also respectively It is ...

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Abstract

The invention discloses a method for driving and controlling a permasyn motor based on the magnetic field orthotropic control. The position bias of a stator magnetic pole and a rotor magnetic electrode is obtained by a rotor magnetic pole position signal provided by a position encoder arranged inside the permasyn motor; the bias is set into orthogonality by 90 degrees to form the closed loop control so as to ensure that the two magnetic fields are in orthogonality; on the base, the vector is controlled to be unfolded on a stator current system of polar coordinates so as to directly control the torque of the permasyn motor by controlling the magnetic field of the stator, and the magnetic field of the rotor is constant. The method saves system resources of the basic magnetic field directional vector control strategy, simplifies the system structure and lowers the cost under the application situation with low requirement, lowers the system expenditure in the servodrive control with high requirement, and gives the control resources to the complicated control, thereby improving the control performance.

Description

technical field [0001] The present invention relates to the drive control method of the motor in the field of servo drive control, in particular to the drive control method of the permanent magnet synchronous motor based on the orthogonal control of the magnetic field. Cross, and use polar coordinates to control the torque of the motor. Background technique [0002] At present, the drive control of permanent magnet synchronous motors at home and abroad mostly adopts the field-oriented vector control strategy. The idea of ​​vector control originated from the "field-oriented control principle of induction motor" proposed by F. Blaschke and others in Germany for asynchronous motors in the 1970s. The field oriented vector control transforms the stator three-phase current i in the three-phase static coordinate system A i B and i C Through CLARK (3 / 2 transformation, the three-phase current i A i B and i C Transformed into two-phase current i α i β ) transformation, which ...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P6/16H02P27/02H02P27/04H02P21/12H02P25/022H02P25/026H02P27/08
Inventor 皮佑国罗映
Owner SOUTH CHINA UNIV OF TECH
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