Alternating current induction motor control system based on self-immunity to interference control

A technology of active disturbance rejection control and induction motor, which is applied in the direction of control system, control generator, vector control system, etc., and can solve the problem of low adaptability of extended state observer parameters

Inactive Publication Date: 2012-12-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide an AC induction motor control system based on ADRC, to solve the problem of low adaptability of the extended state observer parameters, to improve the disturbance estimation capability of the ADRC module, Thereby improving the stability of the AC induction motor control system and improving the dynamic quality

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  • Alternating current induction motor control system based on self-immunity to interference control
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  • Alternating current induction motor control system based on self-immunity to interference control

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[0080] The invention is carried out with an AC induction motor with a rated power of 1.1kW, a given expected speed of 139rad / s, a rated phase current of 3.67A, a stator resistance of 4.0Ω, a moment of inertia of 0.0021kg.m2 and a pole pair of 2 AC induction motor control system test based on active disturbance rejection control. The motor speed test results of this embodiment are as follows Figure 8 Shown.

[0081] From Figure 8 It can be seen that, compared to the traditional AC induction motor control system based on active disturbance rejection, the present invention can reduce the rise time of the system, reduce the overshoot, and improve the quality of the dynamic process. It can be seen that the use of the present invention can take advantage of the expansion state of the traditional active disturbance rejection controller, from the characteristics of the observer and the control experience of the field operator or the knowledge of relevant experts, by adding a fuzzy co...

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Abstract

The invention discloses an alternating current induction motor control system based on a self-immunity to interference control. On basis of the prior art, according to ambiguity compensation, a known part, i.e., the ambiguity compensation sc of the rotation speed working characteristics of the alternating current induction motor is input to an expanded state observer, a sum action quantity Omega 3 of a variety of interference of an actual rotation speed Omega of the motor is an estimation of an unknown part instead of an overall rotation speed, thus burdens of the expanded state observer are relieved, meanwhile a variation scope of a parameter adapting object is enlarged, and the estimation precision of the expanded state observer is increased. By the adoption of the control system, better control effects compared with that of the alternating induction motor system based on the traditional self-immunity to interference control are obtained, the robustness and the immunity to interference are stronger, and the dynamic quality is improved.

Description

Technical field [0001] The invention belongs to the technical field of AC induction motor control for electric vehicles, and more specifically, relates to an AC induction motor control system based on fuzzy compensation auto disturbance rejection control. Background technique [0002] At present, the active disturbance rejection control technology does not depend on the precise model of the system, and can attribute the effects of model disturbance, model and parameter perturbation and unmeasured external disturbance to the total disturbance of the system, and use the error feedback method to perform Real-time estimation and compensation, with strong robustness, is widely used in AC induction motor control. [0003] figure 1 It is a block diagram of AC induction motor control system based on traditional active disturbance rejection control. [0004] Such as figure 1 As shown, the entire AC induction motor control system structure is mainly composed of the following six modules, spee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/14H02P21/18
Inventor 邹见效凡时财徐红兵曾青山
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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