Permanent magnet synchronous motor high-performance control method based on speed sensorless

A technology of permanent magnet synchronous motor and control method, applied in the field of servo control system, capable of solving problems such as sensorless

Pending Publication Date: 2020-10-27
YANGZHOU UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the characteristics of the permanent magnet synchronous motor itself and the defects of the traditional filter and PID control, the present invention designs a high-performance control method

Method used

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  • Permanent magnet synchronous motor high-performance control method based on speed sensorless
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  • Permanent magnet synchronous motor high-performance control method based on speed sensorless

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with specific embodiments.

[0045] The present invention aims at the complex characteristics of permanent magnet synchronous motors, external interference and uncertain factors, as well as the difficult problems in the development of motor control systems with DSP as the core, and designs the vector control algorithm of permanent magnet synchronous motors based on the method of DSP model design. The active disturbance rejection control method and the speed sensorless control method realize the combination of MATLAB / Simulink simulation and hardware, and speed up the system development process.

[0046] Such as figure 1 A high-performance control method for a permanent magnet synchronous motor based on a speed sensor is shown, including the following steps.

[0047] S1) On the MATLAB platform of the upper computer, use MATLAB / Simulink software to design and simulate the PMSM vector control system based...

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Abstract

The invention discloses a permanent magnet synchronous motor high-performance control method based on speed sensorless. The method comprises the following steps: 1) designing and simulating a PMSM vector control system based on DSP modularization in software; 2) establishing a PMSM vector control system hardware circuit based on DSP modularization, and establishing two-way communication between the hardware circuit and an upper computer; 3) adding an extended state observer into a speed loop controller of the upper computer, controlling the rotating speed of the motor by adopting an active disturbance rejection control strategy, and filtering a speed signal by adopting a differential tracking filter before the extended state observer acquires the speed signal; and 4) introducing the speedloop controller in the step 3) into the PMSM vector control system hardware circuit built in the step 2) to control the PMSM, and replacing a traditional IIR filter with a differential tracking filterto solve the problem of noise, thereby improving the speed regulation performance of the motor.

Description

technical field [0001] The invention relates to a control method of a permanent magnet synchronous motor, in particular to a high-performance control method of a permanent magnet synchronous motor, which belongs to the field of servo control systems. Background technique [0002] Due to its small size, large torque inertia ratio, high efficiency and reliability, and excellent servo system performance, permanent magnet synchronous motors play an important role in industrial production, especially in robotics, aerospace, and CNC machine tools. And occasions and fields that require high control precision. But the permanent magnet synchronous motor is a strongly coupled nonlinear system. Its application environment is generally more complex, often subject to various disturbances, these disturbances often come from uncertain factors neglected in the modeling process, sudden changes in load and changes in the working environment. Their existence makes the performance of the clos...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P21/13H02P21/14H02P21/18H02P21/22H02P21/24H02P25/026H02P27/12
CPCH02P21/0007H02P21/13H02P21/14H02P21/18H02P21/22H02P21/24H02P25/026H02P27/12
Inventor 赵天海李生权冯波陆浩徐子枫曹张然
Owner YANGZHOU UNIV
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