Decoupling control system of chemial double input and double output producing pocess

A dual-input dual-output, production process technology, applied in the field of decoupling control systems and novel decoupling control systems, can solve the problems of not considering the coupling effect of the dynamic response stage of the control system, inconvenient to popularize and use, and low control quality, etc. The system output response has no overshoot, eliminating the system output deviation, and the system output response is stable.

Inactive Publication Date: 2005-03-02
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Its main disadvantage is that it does not consider the coupling effect in the dynamic response stage of the control system, so the control quality is still not high
Some scholars propose to use the inverse matrix of the transfer function matrix of the controlled process as a dynamic decoupler, set it at the dual input of the controlled process, and then for the diagonalized process transfer function matrix obtained by this augmentation, According to the

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  • Decoupling control system of chemial double input and double output producing pocess
  • Decoupling control system of chemial double input and double output producing pocess
  • Decoupling control system of chemial double input and double output producing pocess

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[0023] The decoupling control system of the present invention will be further described below in conjunction with the drawings and embodiments.

[0024] Such as figure 1 The shown decoupling control system of the present invention consists of the following parts: decoupling controller matrix C, identification model G of controlled process Gm and two signal mixers (circled nodes in the figure). The first signal mixer is set at the input terminal of the decoupling controller matrix C, which has two positive polarity input terminals and two negative polarity input terminals respectively, and its two positive polarity input terminals are connected to two system given Value input signal r, its two negative input terminals are connected to two system output deviation signals e, its two output terminals are connected to the two input terminals of the decoupling controller matrix C; the second signal mixer is set in the actual controlled At the output end of the process G, it has two...

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Abstract

It is a sort of chemical dual input and dual output decoupling control system. It makes up of decoupling controller matrix, evidential based model of controlled process, and two signal mixers. It makes use of deviation signal as feedback regulated information of system output response, the deviation signal is from output of evidential based model of controlled process and output of real process, it minus system given input value, the answer is used as input signal of decoupling controller matrix, after it is operated by decoupling controller matrix, the control output signal is sent to input adjusting device of controlled process, thus achieve the end of asymptotical tracking system's set point inputs signal and restrains load interference signal. This control system enable to maintain stability of robust, and fit in with the modeling error of actual controlled process and perturbations of procedural parameter in greater extensiveness.

Description

technical field [0001] The present invention relates to a decoupling control system for the double-input and double-output production process of the chemical industry. It is a novel solution based on the optimal control theory and the robust internal model control theory for the double-input and double-output production process of the chemical industry. A coupling control system belongs to the technical field of industrial process control. Background technique [0002] The dual-input and dual-output process is the most common multivariable process in chemical production, and for the convenience of operation and control, many high-dimensional multivariable processes are usually decomposed into several subsystems with dual input and output for processing in practice. Due to the coupling effect between the two control channels, most of the developed single-variable control methods are difficult to apply to the dual-input and dual-output process, and the resulting system output ...

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Application Information

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IPC IPC(8): G05B13/00
Inventor 刘涛张卫东欧林林顾诞英曹春生
Owner SHANGHAI JIAO TONG UNIV
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