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Anti-interference control method of motor position servo system

A servo system and motor position technology, applied in the field of motor position servo, can solve the problem of uncertain nonlinearity of the motor position servo system

Inactive Publication Date: 2015-02-18
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0004] In order to solve the uncertain nonlinear problem in the motor position servo system, the present invention further proposes an anti-interference control method for the motor position servo system

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  • Anti-interference control method of motor position servo system

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Embodiment Construction

[0077] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0078] combine figure 1 , figure 2 As shown, according to a preferred embodiment of the present invention, an anti-interference control method of a motor position servo system, its realization includes the following steps:

[0079] Step 1. Establish the motor position servo system model;

[0080] Step 2. Designing a motor robust controller based on finite time disturbance estimation according to the model established above;

[0081] Step 3. Make the system meet the control performance index by adjusting the parameters in the robust controller based on finite-time disturbance estimation.

[0082] Combine below Figure 1-Figure 9 As shown, the specific implementation of the foregoing steps in this embodiment is described in detail.

[0083] Step 1. Establish a motor position servo system model ...

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Abstract

The invention provides an anti-interference control method of a motor position servo system. A motor position servo system model is established according to features of the motor position servo system, a robust controller based on finite time interface estimation and designed according to the invention estimates unmodeled interference of the system and performs real-time compensation, total disturbance of the system can be well estimated through control law parameter regulation, the uncertainty nonlinearity problem of the system can be effectively solved, and the system control precision meets performance indexes under the above interference. The anti-interference control method has the advantages that the design of the controller is simplified.

Description

technical field [0001] The invention relates to the technical field of motor position servo, in particular to an anti-interference control method of a motor position servo system. Background technique [0002] DC motors have the advantages of fast response, large starting torque, and the ability to provide rated torque from zero speed to rated speed, so they are widely used in industry. With the needs of industrial development, high-precision motion control has become the main development direction of modern DC motors. In the motor servo system, due to the change of working conditions, external disturbances and modeling errors, when designing the controller, there will be a lot of model uncertainty, especially the uncertain nonlinearity, which will seriously deteriorate the obtained control performance, resulting in low control accuracy, limit cycle oscillations, and even system instability. For known nonlinearities, it can be dealt with by feedback linearization technique...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/402
CPCG05B13/04
Inventor 姚建勇徐张宝杨贵超邓文翔董振乐
Owner NANJING UNIV OF SCI & TECH
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