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Robust tracking control method of network control system based on switching control theory

A technology of network control and tracking control, applied in general control systems, control/regulation systems, data exchange networks, etc., and can solve problems such as system performance deterioration

Inactive Publication Date: 2015-12-30
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the time lag problem is one of the main problems faced by the network control system, and it is often an important reason for the deterioration of system performance.

Method used

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  • Robust tracking control method of network control system based on switching control theory
  • Robust tracking control method of network control system based on switching control theory
  • Robust tracking control method of network control system based on switching control theory

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Embodiment 1

[0128] The implementation mode and operation process of the technical solution will be specifically described below with reference to two examples, and the superiority of the present invention will be verified. Taking a continuous second-order plant and a second-order tracking reference model as examples, the state space expressions of the two are as follows:

[0129] Accused object:

[0130] x · ( t ) = 0 1 - 2 - 3 x ( t ) + 1 2 ...

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Abstract

The invention discloses a robust tracking control method of a network control system based on the switching control theory. A mixed node driving mechanism of active variable sampling time and an event is established, and it is guaranteed that network-induced delay is always shorter than a sampling period; based on the mixed node driving mechanism of the active variable sampling time and the event, a tracking control model of the uncertain network control system is established; based on a rasterization processing method, the tracking control model of the network control system is converted into a switching system model with a limited switching rule, an H8robust tracking controller of a discrete network control system achieving the given disturbance inhibition level is designed, and finally communication limitation and tracking control of the network control system under the uncertain system condition are achieved. The method has a good inhibition effect on induced delay, packet loss and system uncertain factors of an uncertain network.

Description

technical field [0001] The present invention relates to the field of automatic control technology, in particular to a robust tracking control method for network control systems based on switching control theory, mainly aimed at transmission time lag, packet loss, system uncertainty and external disturbance factors caused by network introduction The performance degradation or even instability of the control system caused by the problem, based on the switching control system theory, the time-varying tracking control model of the uncertain network control system including tracking error is established, and the performance of the uncertain discrete network control system with time delay and packet loss is analyzed. h ∞ Output tracking performance, and gives the H that satisfies a given disturbance suppression level ∞ A method for robust tracking control. Background technique [0002] With the increasing development and cross-penetration of control science, computer technology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04H04L12/26
Inventor 吴莹吴彦鹏李皎
Owner XI'AN PETROLEUM UNIVERSITY
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