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Cavitator anti-saturation PID transmission semi-physical simulation system

A cavitation and regulator technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of uncontrolled quantity detection and low control accuracy, achieve simple structure, realize anti-saturation control, improve The effect of flexibility

Inactive Publication Date: 2017-05-17
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When mechanical and open-loop control the control quantity, the controlled quantity cannot be detected, so the control accuracy is low

Method used

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  • Cavitator anti-saturation PID transmission semi-physical simulation system
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  • Cavitator anti-saturation PID transmission semi-physical simulation system

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the drawings.

[0014] The invention includes a speed regulator, a current regulator, a tachogenerator, a current transformer, a power electronic converter, and an angle sensor. The rotation angle of the cavitation device is given an angle voltage signal, and the speed regulator outputs a limiting voltage signal. The limiting voltage signal determines the maximum value of the current, and the limiting voltage output by the current regulator limits the maximum output voltage of the power electronic converter. When the regulator is saturated, the output reaches the limit value, and the change in the input quantity no longer affects the output, unless there is a reverse input signal that makes the regulator exit saturation. The speed adjustment part adopts a double closed loop structure, in which the outer closed loop plays the role of speed feedback and adjustment, and the corresponding regulator adop...

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Abstract

The present invention relates to a cavitator anti-saturation PID transmission semi-physical simulation system. The system comprises a rotating speed regulator, a current regulator, a tachogenerator, a current transformer, a power electronic converter and an angular transducer. An angle voltage signal is given to the cavitator corner angle, and the rotating speed regulator outputs amplitude limiting voltage signals; the amplitude limiting voltage signals are used to determine the maximum value of the given current, the amplitude limiting voltage outputted by the current regulator limits the maximum output voltage of the power electronic converter; and the rotating speed regulation portion employs a double closed-loop structure, the external closed loop play a rotating speed feedback and regulation effect, and the corresponding regulator employs an PI regulator with amplitude limiting. The cavitator anti-saturation PID transmission semi-physical simulation system is small in size, simple in structure, low in cost and easy to realize, can be installed in the model of an underwater ultra high-speed navigation body, and can be taken as a test device for batch production so as to demonstrate the influence of the motion of the underwater ultra high-speed navigation body cavitator on the navigation body kinematical characteristics and the navigation attitudes to researchers and learners.

Description

Technical field [0001] The invention relates to a semi-physical simulation system for an anti-saturation PID transmission of a cavitator. [0002] technical background [0003] With its extremely high speed and precise strike capability, underwater ultra-high-speed vehicles far surpass other conventional vehicles. The motion control of underwater ultra-high-speed vehicles has always been an important issue for the country. Semi-physical simulation can be used to simulate the motion control of underwater ultra-high-speed vehicle. Semi-physical simulation is to use underwater ultra-high-speed vehicle model to replace the actual vehicle to perform various control experiments, such as cavitation control, rudder control, pitch control and so on. The semi-physical simulation system for underwater ultra-high-speed vehicles adopts a simulation method that combines physical objects and mathematical models, which can effectively save human and material resources and provide a scientific bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02G05B11/42
CPCG05B17/02G05B11/42
Inventor 赵新华孙尧叶秀芬彭秀艳孙毅
Owner HARBIN ENG UNIV
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