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Speed ​​control method of five-phase fault-tolerant permanent magnet motor based on fuzzy active disturbance rejection controller

A technology of active disturbance rejection controller and permanent magnet motor, which is applied in the direction of controlling generators, controlling electromechanical brakes, controlling electromechanical transmission devices, etc., and can solve problems such as parameter adjustment of ADRC controllers that have not been completely solved

Inactive Publication Date: 2018-08-21
JIANGSU UNIV
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Problems solved by technology

This document uses the error and differential signal of the given position and feedback position as the input of the fuzzy controller, and the output of the fuzzy controller is the three input signals of the nonlinear state error feedback, which does not completely solve the parameter adjustment problem of the ADRC controller

Method used

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  • Speed ​​control method of five-phase fault-tolerant permanent magnet motor based on fuzzy active disturbance rejection controller
  • Speed ​​control method of five-phase fault-tolerant permanent magnet motor based on fuzzy active disturbance rejection controller
  • Speed ​​control method of five-phase fault-tolerant permanent magnet motor based on fuzzy active disturbance rejection controller

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Embodiment Construction

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0063] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0064] Such as figure 1 As shown, a kind of fault-tolerant permanent magnet motor speed control method based on fuzzy active disturbance rejection controller of the present invention comprises the following control steps:

[0065] S1, obtain the position angle θ of the five-phase fault-tolerant permanent magnet motor rotor through the p...

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Abstract

The invention discloses a novel fuzzy active disturbance rejection controller based five-phase fault-tolerant permanent magnet motor speed control method, and designs the novel fuzzy active disturbance rejection controller. A rotating speed differential value generated by a tracking differentiator and a system disturbance value observed by a linear expansion state observer are taken as the input of a fuzzy logic theory machine; and the output bandwidth value omega<c> of the fuzzy logic theory machine is taken as bandwidth input of a proportional controller. The fuzzy controller can change parameters of the controller according to the working conditions of the system in real time; the design difficulty of the controller is lowered, and the controller parameters can be adjusted in real time according to the running working conditions of the system; the novel tracking differentiator of the novel fuzzy active disturbance rejection controller ensures that the motor has no overshoot rapid response in the whole dynamic process; and compared with a conventional linear active disturbance rejection controller, the novel fuzzy active disturbance rejection controller designed in the invention has strong disturbance resisting capacity and adaptive capacity for complex working conditions, and the excellent dynamic performance.

Description

technical field [0001] The invention relates to a speed control method of a fault-tolerant permanent magnet motor based on a fuzzy ADRC controller, which is suitable for the field of high-precision servo control of the permanent magnet motor. Background technique [0002] With the application of permanent magnet synchronous motors in the field of servo control more and more widely, the requirements for control accuracy are getting higher and higher, and the most important factor affecting the control accuracy of permanent magnet motors is the disturbance of the system. The disturbance of the system is usually composed of the internal parameter perturbation of the system and the external disturbance of the system. The existence of these disturbances will make the system unstable. In addition, when the control system is in different operating conditions, the parameters of the controller need to be changed accordingly, which requires manual adjustment of the parameters of the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00H02P21/22H02P21/13
CPCH02P21/001H02P21/0017H02P21/12H02P21/13
Inventor 周华伟程燃刘国海吉敬华陈前赵文祥
Owner JIANGSU UNIV
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