Reliable optimization control system and method suitable for interconnected nonlinear system

A nonlinear system, optimized control technology, applied in the direction of comprehensive factory control, information technology support system, electrical testing/monitoring, etc., can solve problems such as triggering conditions of rare system control performance, and reduce the amount of system information transmission and control Cost, increased degrees of freedom, reduced transmission load effects

Pending Publication Date: 2022-08-05
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned control research on the interference problem of interconnected nonlinear systems, when designing the system trigger conditions, it is often based on the input value setting, and there are few studies on the trigger conditions based on the control performance of the system.

Method used

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  • Reliable optimization control system and method suitable for interconnected nonlinear system
  • Reliable optimization control system and method suitable for interconnected nonlinear system
  • Reliable optimization control system and method suitable for interconnected nonlinear system

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Experimental program
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Embodiment 1

[0111] This embodiment provides a reliable optimal control system suitable for interconnected nonlinear systems, such as figure 2 As shown, it includes an integrated control model building block for an interconnected nonlinear system, a receiver block, a first trigger, an observer, a second trigger, a sliding mode controller, and a controller.

[0112] The above-mentioned building block of the integrated control model of the interconnected nonlinear system is used to construct an integrated control model of the interconnected nonlinear system that takes into account the actuator attack and external disturbance factors and the coupling between the subsystems of the interconnected nonlinear system.

[0113] In this embodiment, based on the previous analysis, the constructed integrated control model of the interconnected nonlinear system is as follows:

[0114]

[0115]

[0116] where x i (t)∈R n (i=1,...,N) represents the state parameters of the ith subsystem of the int...

Embodiment 2

[0155] The present embodiment provides a kind of reliable optimal control method that is applicable to interconnected nonlinear systems, utilizes the reliable optimal control system that is applicable to interconnected nonlinear systems provided in embodiment 1, and carries out according to the following steps:

[0156] S1 uses the receiving module to receive the output information of each subsystem of the interconnected nonlinear system in real time;

[0157] S2 uses the first trigger to judge whether the trigger condition of the sensor output channel of each subsystem of the interconnected nonlinear system is satisfied, and when the trigger condition is satisfied, the output information of each subsystem of the interconnected nonlinear system is used as the trigger value of the sensor output channel, and sent to the observer;

[0158] S3 utilizes the observer to estimate the actual state and total disturbance information of each subsystem of the interconnected nonlinear syste...

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PUM

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Abstract

The invention discloses a reliable optimization control system suitable for an interconnected nonlinear system, and the system comprises an interconnected nonlinear system comprehensive control model building module, a receiving module, a first trigger, an observer, a second trigger, a sliding mode controller, and a controller. A sensor output channel trigger value and a controller trigger value are determined through the first trigger and the second trigger, and then actual control input signals of all subsystems of the interconnected nonlinear system are obtained and sent to an actuator. According to the method, the actuator attack, the external interference and the coupling influence among the subsystems are considered at the same time, the reliability of the control system can be enhanced to a certain extent, effective control over trajectory tracking is achieved, and the system information transmission amount and the control cost are reduced.

Description

technical field [0001] The invention belongs to a reliable optimal control technology based on observer-event triggering with actuator attacks and external disturbances, and more specifically, relates to the modeling of a class of interconnected nonlinear systems subjected to actuator attacks and external disturbances, The design of the distributed observer based on the trigger mechanism, the design of the optimized controller, the design of the event trigger mechanism of the actuator-sensor channel, and the proof of the stability of the tracking performance. Background technique [0002] With the continuous improvement of industrial automation, modern industrial systems contain more and more non-linear subunits. In order to complete complex industrial control objectives, it is often necessary to integrate multiple interconnected subsystems. Such as network communication systems, cyber-physical fusion systems and power grid systems. This type of system is a typical nonlinea...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0243G05B2219/24065Y04S40/20Y02P90/02
Inventor 郭斌佃松宜赵涛游星星朱雨琪
Owner SICHUAN UNIV
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