MISO different-factor partial-format Model-free control method with self-tuning parameters

A parameter self-tuning and control method technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as difficult to achieve control effect, restrict the popularization and application of MISO partial format model-free control method, and achieve wide The effect of applicability, good stability and high control precision

Active Publication Date: 2019-05-28
ZHEJIANG UNIV
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Problems solved by technology

When the existing MISO partial scheme 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 the ideal control effect due to the different characteristics of the control channels, which restricts the MISO partial scheme model-free control method. Promote application

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  • MISO different-factor partial-format Model-free control method with self-tuning parameters
  • MISO different-factor partial-format Model-free control method with self-tuning parameters
  • MISO different-factor partial-format Model-free control method with self-tuning parameters

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] 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 different factor partial format model-free control method is used for control; the control input linearization length constant L of the MISO different factor partial format model-free control method is determined , L is a positive integer. For the ith control input u i (k)(i=1,...,m), the MISO heterogeneous partial format 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,1 ,…,ρ i,L ; 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 f...

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Abstract

The invention discloses an MIMO different-factor partial-format model-free control method with self-tuning parameters, and aims at the limitation of a prior MIMO partial-format model-free control method adopting a same-factor structure, namely, aiming at the limitation that different control inputs in a control input vector at a k moment can only adopt penalty factors with the same numerical valueand step factors with the same numerical value, an MIMO partial-format model-free control method adopting a different-factor structure is provided, different control inputs in a control input vectorat the k moment can adopt penalty factors with different numerical values and step factors with different numerical values, the control problem of different characteristics of various control channelsin complex objects such as a strong nonlinear MIMO system can be solved. Meanwhile, a method of parameter self-tuning is provided to solve the problem that tuning of the penalty factors and step factors is time consuming and labor consuming. Compared with a prior control method, the method has higher control precision, better stability and wider applicability.

Description

technical field [0001] The invention belongs to the field of automatic control, in particular to a parameter self-tuning MISO different factor partial 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): G05B13/04
Inventor 卢建刚陈晨
Owner ZHEJIANG UNIV
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