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Control system and method for eliminating non-linear influence

A control system, nonlinear technology, applied in general control systems, control/regulation systems, adaptive control and other directions, can solve the problems affecting the performance indicators of the control system, complex adjustment of control algorithm parameters, etc., to achieve simple and convenient parameter adjustment, The effect of improving linearity and improving performance indicators

Active Publication Date: 2015-06-24
GOOGOL TECH SHENZHEN LTD GUANGDONG
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Problems solved by technology

[0002] There are often nonlinear mechanical structures in the control system. For example, the mechanical structure of the turntable and the linkage is a very common atypical nonlinear structure in the electromechanical control system. The nonlinear factors brought by it directly affect the performance index of the control system. , in addition to complicating the tuning of the control algorithm parameters

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Embodiment Construction

[0031] The present invention will be further described in detail below through embodiments in conjunction with the accompanying drawings.

[0032] Such as figure 1 In the mechanical structure of a turntable and link shown, the radius from the center o of the turntable to the support point A of the link is R, and the length of the link is L. It is advisable to assume that the desired trajectory of the end point B of the link is around o' with a radius of d The circular motion of the arc, o' to the end point of the link is the support rod, and the angle α between the support rod and the horizontal direction is the system output. Let the input be At this time, the angle θ between the support point of the link rod and the horizontal direction is an intermediate variable of the system.

[0033] The structure of the previous control system is as follows: figure 2 As shown, the mechanical structure part of the turntable link α=f(θ) is a nonlinear link. Due to the non-linearity ...

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Abstract

The invention discloses a control system for eliminating non-linear influence. The control system comprises a non-linear section and an inverse non-linear section arranged in front of the non-linear section; and the input / output relationship of the inverse non-linear section is set as an inverse function of the input / output relationship of the non-linear section. The invention also discloses a corresponding control method. By additionally arranging the inverse non-linear section in front of the non-linear section of the control system, the influence of non-linear structures such as rotary discs and coupling rods can be eliminated effectively, the performance index of the control system is improved, and meanwhile the control system becomes simpler and more convenient in parameter regulation.

Description

technical field [0001] The present invention relates to a control system and method for eliminating nonlinear effects. Background technique [0002] There are often nonlinear mechanical structures in the control system. For example, the mechanical structure of the turntable and the linkage is a very common atypical nonlinear structure in the electromechanical control system. The nonlinear factors brought by it directly affect the performance index of the control system. , in addition to complicating the tuning of the control algorithm parameters. Contents of the invention [0003] The main purpose of the present invention is to provide a control system and method to eliminate the influence of nonlinear structure for the deficiencies of the prior art. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A control system for eliminating nonlinear effects, including a nonlinear link, and an inverse nonlinear link arr...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/00
Inventor 吴宏孙大卫刘越
Owner GOOGOL TECH SHENZHEN LTD GUANGDONG