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Repetitive controller system and integral anti-saturation control method

A technology that repeats controllers and controller modules, applied in the direction of electric controllers, etc., can solve problems such as poor compensation effect

Inactive Publication Date: 2018-12-21
JIANGHAN UNIVERSITY +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The present invention provides a repetitive controller system and an integral anti-saturation method to solve or at l

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  • Repetitive controller system and integral anti-saturation control method
  • Repetitive controller system and integral anti-saturation control method

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Embodiment 2

[0064] See figure 2 , this embodiment provides an integral anti-saturation control method based on the controller described in Embodiment 1, the method comprising:

[0065] Step S101: After the original control signal is input into the integral anti-saturation module, the saturation control amount is obtained through the saturation nonlinear function module, and the saturation control amount is obtained by subtracting the original control signal from the saturation amount control, wherein, The original control signal is obtained from the error signal according to a preset control algorithm, the error signal is obtained by subtracting the original output signal from the reference signal, and the original output signal can be obtained after the original control signal is input into the controlled object;

[0066] Step S102: After processing the control quantity saturation deviation through the integral anti-saturation compensation controller, obtain control quantity compensatio...

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Abstract

The invention discloses a repetitive controller system and an integral anti-saturation control method, wherein the repetitive controller system comprises a controller module, an integral anti-saturation module and a controlled object, the integral anti-saturation module includes a first output terminal and a second output terminal, the first output terminal is connected with an input terminal of the repetitive controller system and the second output terminal is connected with an input terminal of a saturated nonlinear function module, a control quantity compensation output by the second outputterminal is added to an original control signal to form a compensated control quantity, and is connected with the input terminal of the saturated nonlinear function module, an output terminal of thesaturated nonlinear function module is connected with an input terminal of the controlled object, an output quantity compensation of the first output terminal and the original output signal are addedto form a new output signal to be fed back to the input terminal of the repetitive controller system and the new output signal and a reference signal form deviation as an input of the repetitive controller system. According to the repetitive controller system and the integral anti-saturation control method, the technical problem in the prior art that the compensation effect of the control quantitysaturation is poor is solved.

Description

technical field [0001] The invention belongs to the technical field of repetitive controllers, in particular to a repetitive controller system and an integral anti-saturation method. Background technique [0002] Repetitive controllers are generalized integrals of periodic signals and have more and more applications in the field of industrial control. During the control process, due to the saturation of the actuator, the output value reaches the limit value, but the deviation is still not eliminated. At this time, due to the integral action of the controller, the operation of the controller will continue to increase or decrease, but the actuator has no effect. The corresponding action makes the output of the controller not equal to the actual input of the controlled object. This phenomenon is called integral saturation phenomenon. Integral saturation will increase the system overshoot, increase the transition time, and deteriorate the closed-loop response, which is not cond...

Claims

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Application Information

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IPC IPC(8): G05B11/32
CPCG05B11/32
Inventor 谭翠兰周胜邢彦一
Owner JIANGHAN UNIVERSITY
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