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A Method of Servo Resonance Suppression Using PSO to Optimize Notch Filter Parameters

A notch filter and notch filter technology, applied in general control systems, instruments, control systems, etc., can solve the problems of difficult parameter tuning and complex parameter adjustment, to verify the validity and correctness, optimize the computing ability, The effect of solving the multi-axis resonance problem

Active Publication Date: 2020-04-21
XIAN UNIV OF TECH
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  • Description
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Problems solved by technology

The traditional notch filter design has a certain dependence on the model, and the parameter adjustment is more complicated
Aiming at the problem that the parameters are not easy to tune, a parameter self-tuning method based on particle swarm optimization algorithm is proposed

Method used

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  • A Method of Servo Resonance Suppression Using PSO to Optimize Notch Filter Parameters
  • A Method of Servo Resonance Suppression Using PSO to Optimize Notch Filter Parameters
  • A Method of Servo Resonance Suppression Using PSO to Optimize Notch Filter Parameters

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with specific embodiments.

[0035] The structure block diagram of the existing servo system to suppress resonance is as follows: figure 1As shown, including position loop control 1, speed loop control 2, vibration suppression 3, current loop control 4, vector control 5 and resonance system 6, position control 1 mainly adopts proportional control to ensure the static accuracy and dynamic tracking performance of the system, directly It is related to the stability and high-performance operation of the AC servo system, which is the key point of the design. Speed ​​control 2 mainly adopts proportional integral control to enhance the system's ability to resist load disturbances, suppress speed fluctuations, and achieve steady state without error. The current loop control 4 adopts PID control to ensure that the motor winding current accurately tracks the command signal in real time, and limits the armatur...

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Abstract

The method discloses a method of using PSO optimized trap parameters for servo resonance suppression. By detecting the resonant frequency of the servo system, a PSO algorithm is adopted to design and optimize the parameters of the notch filter to achieve the purpose of suppressing resonance. The method of using PSO optimized trap parameters for servo resonance suppression can effectively resolve the problem that is difficult to be adjusted caused by the notch filter due to parameter coupling, and not only takes advantage of the optimized computing ability of PSO algorithm, but also shows the advantage of the notch filter to filter harmonics effectively. By combining the optimized computing ability of PSO algorithm and the notch filter to filter harmonics effectively, the resonance harmonics of permanent magnet synchronous servo motor is eliminated effectively and the servo resonance phenomenon is suppressed.

Description

technical field [0001] The invention belongs to the technical field of motor control, and relates to a method for suppressing servo resonance by using PSO to optimize notch filter parameters. Background technique [0002] In the field of small and medium-capacity high-precision transmission, permanent magnet synchronous servo motors are widely used to generate magnetic fields by adding permanent magnets to the rotor. Due to the inherent characteristics of the permanent magnetic material, it no longer needs external energy to establish a strong permanent magnetic field in its surrounding space. This can not only simplify the structure of the motor, but also save energy. At present, most of the full-digital AC permanent magnet synchronous motor servo control systems on the market come from Japan, Germany and the United States. In recent years, domestic AC permanent magnet synchronous motor servo control system research is very active. Tianjin University, Huazhong University ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04H02P21/05
CPCG05B13/042H02P21/05
Inventor 尹忠刚巩磊杜超刘静钟彦儒
Owner XIAN UNIV OF TECH
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