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Parameter self-tuning MISO (Multiple Input and Single Output) different-factor tight-format model-free control method

A technology of parameter self-tuning and control method, applied in the direction of adaptive control, general control system, control/regulation system, etc. The effect of applicability, good stability and high control precision

Active Publication Date: 2019-05-21
ZHEJIANG UNIV
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Problems solved by technology

When the existing MISO compact-form model-free control method with the same factor is applied to complex objects such as strongly nonlinear MISO systems, it is often difficult to achieve ideal control effects due to the different characteristics of the control channels, which restricts the MISO compact-form model-free control method. Promote application

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  • Parameter self-tuning MISO (Multiple Input and Single Output) different-factor tight-format model-free control method
  • Parameter self-tuning MISO (Multiple Input and Single Output) different-factor tight-format model-free control method
  • Parameter self-tuning MISO (Multiple Input and Single Output) different-factor tight-format model-free control method

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] figure 1 The principle block diagram of the present invention is given. For a MISO system with m control inputs (m is a positive integer greater than 1), the MISO differential factor compact scheme model-free control method is used for control. For the ith control input u i (k)(i=1,...,m), the MISO heterogeneous compact form model-free control method is used to calculate u i The parameters of the mathematical formula of (k) include the penalty factor λ i , step factor ρ i ; select u i The parameter to be tuned in the mathematical formula of (k), which is u i (k) part or all of the parameters of the mathematical formula, including the penalty factor λ i , step factor ρ i any one or combination of any of the figure 1 In the schematic diagram, all control inputs u i (k) The parameter to be adjusted in the mathematical formula of (...

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Abstract

The invention discloses a parameter self-tuning MISO (Multiple Input and Single Output) different-factor tight-format model-free control method. In view of the limitation of the existing MISO tight-format model-free control method adopting the same factor structure, that is, the limitation of only adopting penalty factors with the same value and step-size factors with the same value for differentcontrol inputs in a control input vector at a k moment, an MISO tight-format model-free control method by adopting a different factor structure is provided, penalty factors with different values and / or step-size factors with different values can be adopted for different control inputs in the control input vector at the k moment, and the control problem of different characteristics of control channels existing in a complex object such as a strong nonlinear MISO system can be solved. A parameter self-tuning method is also provided to effectively overcome the problem that penalty factors and step-size factors need to consume time and labor for tuning. Compared with the existing control method, the method of the invention is higher in control accuracy, better in stability and wider in applicability.

Description

technical field [0001] The invention belongs to the field of automatic control, in particular to a parameter self-tuning MISO different factor compact format model-free control method. Background technique [0002] Controlled objects in oil refining, petrochemical, chemical, pharmaceutical, food, papermaking, water treatment, thermal power, metallurgy, cement, rubber, machinery, electrical and other industries, including reactors, distillation towers, machines, equipment, devices, production lines, workshops , factories, many of which are controlled by MISO (Multiple Input and Single Output) systems. Realizing high-precision, high-stability, and high-applicability control of the MISO system is of great significance to industrial energy saving, consumption reduction, quality improvement and efficiency increase. However, the control problems of MISO systems, especially the control problems of strongly nonlinear MISO systems, have always been a major challenge in the field of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02
Inventor 卢建刚陈晨
Owner ZHEJIANG UNIV
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