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Control system of non-minimum phase industrial system

A non-minimum phase, industrial system technology, applied to controllers with specific characteristics, electric controllers, etc., can solve problems such as poor performance, overcome the influence of unstable zero point, overcome system overshoot, and improve control accuracy Effect

Inactive Publication Date: 2020-11-27
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing advanced control technology, such as: active disturbance rejection control technology, because its parameter physical meaning is clear, and has the ability of active disturbance rejection, so that PID control technology is considered as a control method with poor performance

Method used

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  • Control system of non-minimum phase industrial system
  • Control system of non-minimum phase industrial system
  • Control system of non-minimum phase industrial system

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Embodiment Construction

[0035] The object of the present invention is to provide a control system for non-minimum phase industrial systems, so as to overcome the influence of unstable zero points and improve the control precision of non-minimum phase systems.

[0036] In order to make the above objects, features and advantages of the present invention more comprehensible, the invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Such as figure 1 and 2 As shown, the present invention provides a control system of a non-minimum phase industrial system, the control system includes: a pre-regulator, a PID feedback controller and a parameter regulator; the input terminal of the pre-regulator is connected to an input signal, The output end of the pre-regulator is connected to the input signal input end of the PID feedback controller, the feedback signal input end of the PID feedback controller is connected to the feedback signal...

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Abstract

The invention discloses a control system of a non-minimum phase industrial system. The control system comprises a pre-regulator, a PID feedback controller and a parameter regulator. According to the invention, the pre-regulator plays a filtering role, smoothly inputs signals and overcomes system overshoot; the PID feedback controller plays a role in closed-loop stabilization, feedback adjustment and anti-interference, the parameter adjuster adjusts parameters of the pre-adjuster and the PID feedback controller to enable the parameters to be matched with the performance of the non-minimum phaseindustrial system, influence of an unstable zero point is overcome, and the control precision of the non-minimum phase system is improved.

Description

technical field [0001] The invention relates to the technical field of industrial control, in particular to a control system of a non-minimum phase industrial system. Background technique [0002] In actual industrial production, industrial systems are often affected by a series of disturbances, one is the internal disturbance value caused by the mismatch between the known model and the actual system model, and the other is the external disturbance to the control system. external interference. At present, the performance and requirements of the control system are also continuously improved. It is of great significance to design a superior anti-disturbance controller to realize non-static adjustment and tracking control. [0003] Non-minimum phase systems widely exist in industrial objects, such as flexible structure control, boiler temperature control system, ship heading control, inverted pendulum system, etc. However, since the non-minimum phase system is characterized b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 聂卓赟朱超程前李高铭
Owner HUAQIAO UNIVERSITY
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