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Adaptive PID control method and control system of executing mechanism

An actuator and control system technology, applied in the field of full-mode test of aircraft fuel system, can solve problems such as poor effect and low precision, and achieve the effects of improving control quality, fast response speed and short rise time

Inactive Publication Date: 2015-11-11
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology

[0003] The purpose of the present invention is to provide an actuator adaptive PID control method and control system to solve the problems of poor effect and low precision of the current PID control method

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  • Adaptive PID control method and control system of executing mechanism

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Embodiment Construction

[0032] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated.

[0033] Such as figure 1 As shown, the present invention provides an actuator adaptive PID control system, and the actuator 1 is used to drive the system 2 to be controlled. The adaptive control system of the actuator includes an expert PID controller 5 , a fuzzy PID controller 6 , a state information collector 3 and a processor 4 .

[0034] The expert PID controller 5 and the fuzzy PID controller 6 are known PID controllers, which are respectively connected to the actuator 1 for inputting control commands to the actuator 1 .

[0035] The status information collector 3 is connected with the system to be controlled 2, and is used for monitoring the status information o...

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Abstract

The invention belongs to the aircraft fuel system full-mold test field and relates to an adaptive PID control method and control system of an executing mechanism. The objective of the invention is to solve the problems of poor effects and low precision of an existing PID control method. The adaptive PID control system includes an expert PID controller and a fuzzy PID controller which are respectively connected with the executing mechanism, a state information acquisition device used for monitoring the current status information of a system to be controlled in real time, and a processor used for selecting the expert PID controller or the fuzzy PID controller according to the current status information and expected status information to control the executing mechanism. According to the adaptive PID control system of the invention, the expert PID controller or the fuzzy PID controller is selected to perform control, and therefore, the adaptive PID control system has the advantages of high adjustment speed, short rise time, low overshoot and high control precision. With the control system adopted, requirements for high speed of a servo system can be satisfied, and the control quality of the servo system can be improved.

Description

technical field [0001] The invention relates to the field of full-model test of aircraft fuel system, in particular to an adaptive PID control method and control system of an actuator. Background technique [0002] In the full model test of the aircraft fuel system, it is necessary to simulate the environmental tank pressure, engine bleed air pressure, engine inlet oil supply flow, flight attitude, pressure and flow at the inlet of the pressure refueling joint caused by the altitude change of the aircraft during flight; valves, Control elements such as cylinders and controllers form a control loop to achieve precise control of pressure and flow. However, due to the complex test environment and the many components of the gas pressure and flow control system, the conventional PID control method has poor effect and low precision. Contents of the invention [0003] The purpose of the present invention is to provide an actuator adaptive PID control method and control system to...

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Application Information

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IPC IPC(8): G05B17/02
Inventor 王曹莉张建亮
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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