Servo turnable controller based on non-linear switching system

A technology for switching systems and servo turntables, applied in the fields of space exploration, national defense industry, and satellite communications, which can solve the problems of few adjustable parameters of the PID controller, lack of engineering significance, and inability to cope with the precise control of servo turntables, etc.

Active Publication Date: 2014-03-05
ANHUI UNIVERSITY
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Problems solved by technology

[0007] The PID controller has few adjustable parameters, lacks clear engineering significance, and cannot cope with the precise control of the servo turntable under complex and special working conditions

Method used

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  • Servo turnable controller based on non-linear switching system
  • Servo turnable controller based on non-linear switching system
  • Servo turnable controller based on non-linear switching system

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Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] Traditional control has problems such as model mismatch and rough design, parameter trial and error, and too simple controller structure in the modeling and control of the servo turntable. In order to solve these problems and deal with the complex servo system in the rapid development of related industries In the case of multi-mode working conditions, the multi-model switching system is introduced into the precise modeling and control of the servo turntable to obtain a good tracking effect.

[0014] The continuous system of the servo platform is controlled by a switching controller, which can obtain better performance than the traditional PID controller or other continuous control. When the turntable runs at a constant speed within a certain value range, the controller will apply a linear predictive controller based on the corresponding linear system m...

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Abstract

A servo turnable controller based on a non-linear switching system is characterized in that a multi-model switching system is led into precise modeling and controlling of a servo turnable, global on-line rolling optimization calculation comprising a linear sub system and a non-linear sub system is adopted, a prediction function controller is applied to any sub controller, local prediction function controllers u2(k) and u4(k) are directly applied to linear models 2 and 4 shown as the formula, and non-linear prediction function controllers u1(k) and u3(k) are applied to non-linear models 1 and 3. As for specific turntables of other models, according to specific situations of non-linear factors, the modality of the switching system and the controllers based on sub system models can be increased, and operation methods are the same as the presented portion.

Description

technical field [0001] The invention relates to the fields of space exploration, satellite communication, national defense industry and the like, in particular to a servo turntable controller based on a nonlinear switching system. Background technique [0002] The servo turntable is widely used in space exploration, satellite communication, national defense industry and other fields. It directly affects the performance of the entire equipment and is one of the manifestations of the country's military scientific and technological capabilities. The modeling and controller design based on nonlinear switched systems are of great significance and have good application development prospects. The resulting technical methods and program conclusions have profound basic research significance and application value. [0003] In the past, the research on the servo turntable mostly stayed on the linear system model obtained by mechanism modeling. Because of the limitations of this type o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/00
Inventor 张倩王群京李国丽叶超
Owner ANHUI UNIVERSITY
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