MISO hetero-factor full-format model-free control method with parameter self-tuning

Abstract

The invention discloses a MISO hetero-factor full-format model-free control method with parameter self-tuning. The MISO hetero-factor full-format model-free control method with parameter self-tuning aims at the limitation of an existing MISO full-format model-free control method with a same factor structure, namely, the limitation comprises that penalty factors with a same numerical value and stepsize factors with a same numerical value can only be used for different control inputs in the control input vector at k time, the MISO full-format model-free control method based on a hetero-factor structure is proposed. At the k time, penalty factors with different numerical values and / or step size factors with different numerical values can be used for different control inputs in a control input vector, the control difficult problems of different control channel characteristics in complex objects such as strongly nonlinear MISO systems can be solved, and meanwhile, the method of parameter self-tuning is proposed to effectively solve the difficult problem of time-consuming and laborious tuning of the penalty factors and the step size factors. Compared with an existing control method, theMISO hetero-factor full-format model-free control method with parameter self-tuning has higher control accuracy, better stability and wider applicability.

Description

technical field [0001] The invention belongs to the field of automatic control, and in particular relates to a parameter self-tuning MISO different-factor full-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 ...

AI Technical Summary

Problems solved by technology

When the existing MISO full-format 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 development of the MISO full-format model-free control method. Promote application

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