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A two-axis integrated gyro accelerometer decoupling servo control loop system and method

A technology of accelerometer and servo control, applied in general control system, control/adjustment system, adaptive control, etc., can solve the problems of insufficient output accuracy, achieve the effect of improving steady-state accuracy, eliminating errors, and reducing dynamic errors

Active Publication Date: 2021-07-13
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology

There is no design scheme for the servo loop of the dual-axis integrated gyro accelerometer in China, and the output accuracy is not enough. Therefore, it is necessary to carry out the design of the servo loop of the dual-axis integrated gyro accelerometer

Method used

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  • A two-axis integrated gyro accelerometer decoupling servo control loop system and method

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Embodiment Construction

[0035] The invention discloses a two-axis integrated gyro accelerometer decoupling servo control loop system and method. The decoupling servo control loop is a servo control loop for a two-axis integrated gyro accelerometer. A two-axis integrated gyro accelerometer decoupling servo control loop system designed by the present invention includes a two-input-output decoupler, a gain compensator, two identical second-order integral modules and two identical lead-lag modules, which are 2 ×2-dimensional multi-input multi-output transfer function matrix, which can realize the decoupling of two cross-link loops; two integration links make the gyro accelerometer system a type II system, and the second-order integration module can eliminate the constant angular velocity change rate related errors, thereby improving the steady-state accuracy of the servo loop system; the lag-lead link can increase the dynamic gain of the system in the low-frequency band, which is beneficial to reduce the ...

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Abstract

The invention discloses a two-axis integrated gyro accelerometer decoupling servo control loop system and method. The decoupling servo control loop is a servo control loop for a two-axis integrated gyro accelerometer. A two-axis integrated gyro accelerometer decoupling servo control loop system designed by the present invention includes a two-input-output decoupler, a gain compensator, two identical second-order integral modules and two identical lead-lag modules, which can realize For the decoupling of the two interlinkage loops, the second-order integral module can eliminate errors related to the rate of change of constant angular velocity, thereby improving the steady-state accuracy of the servo loop system; the lag-lead link can improve the dynamic gain of the system in the low-frequency band, which is beneficial to Reduce dynamic errors. Adding an output decoupling link in the servo control loop can overcome the cross-linking problem between the two current output values ​​of the servo loop and the angular velocity, and improve the output accuracy of the gyro accelerometer system.

Description

technical field [0001] The invention relates to a servo control loop of a gyro accelerometer, in particular to a two-axis integrated gyro accelerometer decoupling servo control loop system and method, and belongs to the field of aviation and aerospace for high-precision apparent acceleration measurement. Background technique [0002] In the high-precision inertial stabilization platform, the pendulum integral gyro accelerometer is mainly used to sense the large overload of the missile and the apparent acceleration along the input axis direction, which is a single-degree-of-freedom accelerometer. [0003] On the basis of the traditional gyro accelerometer, the two-axis integrated gyro accelerometer is increased from one servo loop to two servo loops so that the frame angle α and the table body angle β are kept at zero. At the same time, in the two servo loops Calculate the OX by measuring the current value of the control motor 1 and OY 1 The acceleration value for the direc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/02
CPCG05B13/024
Inventor 魏宗康周姣
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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