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An electric servo control system and method for self-adaptive adjustment according to deviation

An adaptive adjustment, electric servo technology, applied in the control system, vector control system, motor generator control and other directions, can solve the PID control can not adapt, reduce overshoot and steady-state buffeting, obvious nonlinear characteristics and other problems, Achieve the effect of suppressing excessive overshoot, reducing steady-state jitter, and speeding up dynamic response

Active Publication Date: 2019-05-24
SHANGHAI AEROSPACE CONTROL TECH INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the significant unmodeled characteristics, obvious nonlinear characteristics, and large load disturbances of the electric servo system model, the conventional PID control has been unable to meet its requirements.
With fixed control parameters, it is impossible to reduce overshoot and steady-state chattering while speeding up the response speed

Method used

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  • An electric servo control system and method for self-adaptive adjustment according to deviation
  • An electric servo control system and method for self-adaptive adjustment according to deviation
  • An electric servo control system and method for self-adaptive adjustment according to deviation

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Embodiment Construction

[0024] Hereinafter, in conjunction with the accompanying drawings, a preferred embodiment is described in detail to further illustrate the present invention.

[0025] Such as figure 1 As shown, the electric servo system controller can adopt PID control, an electric servo control system that is adaptively adjusted according to deviations, including: a feedback potentiometer 100 for obtaining a position feedback signal; a comparison module 200 and the feedback potentiometer 100 connection, used to calculate the difference between the command control signal and the position feedback signal according to the received command control signal and position feedback signal; the controller 300, connected to the comparison module 200, used to control the signal and position feedback signal according to the command The power drive module 400, connected to the controller 300, is used to form a corresponding control voltage according to the control strategy, and isolate and amplify it to drive t...

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PUM

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Abstract

The invention discloses a power-driven servo control method for self-adaptive adjustment according to deviation. The power-driven servo control method comprises the following steps of calculating a difference value between an instruction control signal and a position feedback signal according to the instruction control signal and the position feedback signal; respectively comparing the difference value between the instruction control signal and the position feedback signal with a first preset threshold value and a second preset threshold value; and determining a corresponding control strategy according to the size of the difference value, and completing control of a power-driven servo system. The invention also discloses a power-driven servo control system for self-adaptive adjustment according to the deviation. By the power-driven servo control method, the control quality of the power-driven servo system can be improved, and the influence caused by non-linear characteristic is reduced.

Description

Technical field [0001] The invention relates to the technical field of electric servo system control, in particular to an electric servo control system and method that is adaptively adjusted according to deviations. Background technique [0002] As a follow-up system, the electric servo system is used to follow instructions, overcome load torque, and produce corresponding output quickly and accurately. [0003] Due to the obvious unmodeled characteristics, obvious nonlinear characteristics, and large load disturbances of the electric servo system model, the conventional PID control can no longer meet its requirements. Using fixed control parameters cannot speed up the response while reducing overshoot and steady-state chattering. Summary of the invention [0004] The purpose of the present invention is to provide an electric servo control system and method that is adaptively adjusted according to deviations. Aiming at the characteristics of inaccuracy, uncertainty, large load distu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00
CPCH02P21/0003
Inventor 奚勇陶键王鳿
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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