Multi-capacity liquid level novel Hamiltonian control system based on energy forming and damping injection

A technology for energy shaping and control systems, applied in general control systems, control/regulation systems, adaptive control, etc., can solve problems such as large system impact, threat to system stability, and impact on accurate tracking of the system to achieve the effect of eliminating impact

Active Publication Date: 2022-02-11
QINGDAO UNIV
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Problems solved by technology

[0004] For systems with multiple inputs and multiple outputs, strong nonlinearity, and unknown disturbance characteristics, simple control algorithms are not sufficient
In addition, the disturbance has a great influence on the system, which not only affects the precise tracking of the system, but also threatens the stability of the entire system

Method used

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  • Multi-capacity liquid level novel Hamiltonian control system based on energy forming and damping injection
  • Multi-capacity liquid level novel Hamiltonian control system based on energy forming and damping injection
  • Multi-capacity liquid level novel Hamiltonian control system based on energy forming and damping injection

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Embodiment Construction

[0039] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the steps shown in the flowcharts of the accompanying drawings may be performed in a computer system, such as a set of computer-executable instructions, and that although a logical order is shown in the flowcharts, in some cases, The steps shown or described may be performed in an order different than here.

[0041] Such as figure 1 As shown, the establishment of a new Hamiltonian control system for multi-capacity liquid levels based on energy shaping and damping injection includes the following steps:

[0042] 1. Establish a dynamic mathematical model of the four-capacity liquid level system

[0043] According to the principles of Bernoulli and fluid mech...

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Abstract

The invention discloses a multi-capacity liquid level novel Hamiltonian control system based on energy forming and damping injection, the system comprises the following steps: firstly, establishing a Hamiltonian model of a multi-capacity liquid level system by using a fluid mechanics principle and a Hamiltonian principle by taking a four-capacity liquid level system as an example; secondly, giving a novel Hamiltonian model, namely a state error Hamiltonian model, of the multi-capacity liquid level system based on the idea of state errors, and then designing a feedback controller through the energy forming and damping injection technology so that liquid level control over the multi-capacity liquid level system can be effectively achieved through the controller; finally, in order to solve the problems of measurement errors, unknown disturbance, parameter uncertainty and the like in the multi-capacity liquid level system, the disturbance observer is designed to observe the lumped disturbance, so that the influence of the lumped disturbance on the system is weakened or even eliminated, By using the control method, liquid level position control, tracking control and disturbance suppression control can be achieved.

Description

technical field [0001] The invention belongs to the technical field of industrial process control, in particular to a novel Hamiltonian control system for multi-capacity liquid levels based on energy shaping and damping injection. Background technique [0002] Process control plays a vital role in reducing energy consumption, saving costs, improving product quality, and environmental protection. Liquid level control is also widely used in process control, that is, it plays a very important role in the industrial field. In short, liquid level control is to control the inflow and outflow of liquid in a container, so that the liquid level value in the container reaches and maintains the desired height, and the liquid level can fluctuate within the allowable error range. An excellent controller can maintain the liquid level at the desired value and keep the error within an acceptable range by controlling the inflow and outflow of the liquid extremely effectively. In the proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042Y02P90/02
Inventor 孟祥祥于海生张洁杨庆吴贺荣许涛于金鹏
Owner QINGDAO UNIV
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