Servo valve control circuit, method and device based on feed-forward compensation and flutter compensation

A feed-forward compensation and control circuit technology, applied in the field of servo valve control, can solve the problems of speeding up the response speed of the servo valve, reducing the CPU processor, and long algorithm execution time, so as to avoid execution complexity, speed up the response speed, and improve control quality effect

Pending Publication Date: 2022-01-21
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
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Problems solved by technology

[0005] In order to solve the problems that the current way of guaranteeing the control performance of servo valves through software algorithms has the problems of long algorithm execution time, resource occupation and long feedback time, the present invention proposes a servo valve cont

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  • Servo valve control circuit, method and device based on feed-forward compensation and flutter compensation
  • Servo valve control circuit, method and device based on feed-forward compensation and flutter compensation
  • Servo valve control circuit, method and device based on feed-forward compensation and flutter compensation

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Example Embodiment

[0041] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in a variety of different ways defined and covered;

[0042] Considering the motion assembly of the electro-hydraulic servo valve, the relative motion of the electro-hydraulic servo valve will inevitably form a friction, which may increase the static friction, resulting in a phenomenon of the electro-hydraulic servo valve card, in order to reduce friction Reduce the electro-hydraulic servo valve card block probability, and a servo valve control circuit, method, method and apparatus based on feedforward compensation and flux compensation, wherein the feedforward compensation and a servo valve based on feedforward compensation The overall structure of the control circuit is like figure 1 Disted, see figure 1 The control circuit includes a signal generating circuit 1, a reference signal unit 2, a flux signal compensati...

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Abstract

The invention provides a servo valve control circuit, method and device based on feed-forward compensation and flutter compensation. The control circuit comprises a signal generation processing circuit, a reference signal unit, a flutter signal compensation circuit, a feed-forward compensation circuit and a servo valve. complex software algorithms are replaced with simple circuit structures, a flutter signal is superposed on a direct control signal required by the servo valve, so a software algorithm is omitted, execution complexity of the software algorithm is avoided, the expenditure of a CPU processor is reduced, the response speed of the servo valve is accelerated, and the control quality is improved; under the known controlled trend of the servo valve, feed-forward compensation adjustment of the servo valve is realized based on the feed-forward compensation circuit according to the requirement of the controlled trend, so the influence of software anti-interference confrontation and a software algorithm cycle period is avoided, and the control effect of the servo valve is further consolidated.

Description

technical field [0001] The present invention relates to the technical field of servo valve control, more specifically, to a servo valve control circuit, method and device based on feedforward compensation and flutter compensation. Background technique [0002] The electro-hydraulic servo valve is a key component in the electro-hydraulic servo control and fuel control system. It is a hydraulic control valve that outputs modulated current and pressure after receiving an analog electrical signal. It is the interface between the electrical control part and the hydraulic execution part. Amplifying components that realize small signal control and high power. The electro-hydraulic servo valve has the advantages of fast dynamic response, high control precision and long service life, and has been widely used in electro-hydraulic servo control systems in the fields of aviation, aerospace, ships, metallurgy, and chemical industry. [0003] In the actual working process, the relative m...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 薛晓波袁伟白燕羽洪丽任广华周中秋
Owner CHINA HANGFA SOUTH IND CO LTD
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