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Auto-tune of a control system based on frequency response

一种控制系统、控制器的技术，应用在方法和系统领域

Inactive Publication Date: 2012-07-25
KOLLMORGEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above identified problems are solved and technical advancements are achieved in the art by providing methods and systems for performing automatic tuning of motor controllers based on frequency response functions

Method used

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  • Auto-tune of a control system based on frequency response
  • Auto-tune of a control system based on frequency response
  • Auto-tune of a control system based on frequency response

Examples

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Embodiment Construction

[0037] figure 1 Illustrates an overview of a motor control system in which an auto-tuning system is implemented. The motor control system includes a drive 100 , a motor 200 , a driven load 300 and a position and / or speed measurement device 400 . It should be understood that there are many variations of feedback structures, including a single position sensor on the motor, a single position sensor on the load, a combination of a position sensor on the motor and another position sensor on the load, all of which are included herein . It should be understood that the velocity may be measured directly on the motor, load, or both, rather than being calculated from a position sensor. This configuration is also included here. It should be understood that position and velocity may be calculated using "sensorless" techniques that use the characteristics of the motor to sense position and velocity. This configuration is also included here.

[0038] figure 2 A view showing a control...

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PUM

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Abstract

A method and system of determining tuning parameters for use in tuning a controller used in a process control loop for a motor and associated load. The method includes providing tuning parameters, applying an excitation test signal, receiving frequency response data to determine phase and gain margins, creating an instability region defined by a bounded area that connects the phase and gain margins with a boundary on a gain vs. phase plot, assigning and applying cost functions, and computing stability determinations.

Description

technical field [0001] The present invention relates to methods and systems for automatic tuning of motor controllers. More specifically, the present invention relates to methods and systems by which a controller for a control system of a motor and associated load is automatically tuned based on frequency response. Background technique [0002] A control system generally includes a controller and an appliance to be controlled (eg, a motor driving a load) connected to the controller through a feedback loop. In operation, the plant is controlled by the output of the controller, and the plant output is fed back via a feedback path where it is subtracted from the reference input to form an error signal. The error signal is processed by the controller to generate a modified control input to the facility. Where there are changes in characteristic properties such as motor / load inertia, resonance due to compliance, backlash, and friction, the controller needs to be tuned to mainta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B15/00
CPCG05B13/042
Inventor 乔治·埃利斯埃里克·布鲁斯特
Owner KOLLMORGEN CORP
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