Position Command Correction Controller and Photoelectric Tracking System

Abstract

The invention relates to a position command correction controller and a photoelectric tracking system, belonging to the technical field of AC motor control, and solves the problem of position oscillation caused by the integral of the position error caused by the speed and acceleration limit during the target capture and position transfer process of the photoelectric tracking system For the problem of overshooting, the position command correction controller of the present invention receives a given position command, and quickly tracks and corrects the given position command according to the control model of the position command correction controller and the improved optimal time control method, and outputs the corrected position command, because the position command correction controller tracks and corrects the given position command based on the control model of the position command correction controller and the improved optimal time control method, and uses the speed limit and acceleration limit of the photoelectric tracking system as the limit Therefore, the corrected position command output contains speed and acceleration limit information, which can effectively improve the position control performance of the photoelectric tracking system during target capture and position transfer.

Description

technical field [0001] The invention relates to the technical field of AC motor control, in particular to a position command correction controller and a photoelectric tracking system. Background technique [0002] In recent years, AC permanent magnet synchronous motors have been widely used in photoelectric tracking systems because of their simple structure, high efficiency, good speed regulation performance, and reliable operation. To complete the tracking observation and measurement of the target, the photoelectric tracking system must first capture the target. When the target appears in the field of view of the capture detector of the photoelectric tracking system, the servo system should respond quickly, and the motor drives the tracking axis to move, pulling the target into the center of the field of view to complete target capture. Target acquisition is the prerequisite for the stable tracking measurement of the electro-optical tracking system. In addition, the photo...

AI Technical Summary

Problems solved by technology

[0005] The invention aims at the problem of overshooting of position oscillation during target capture and position transfer in the photoelectric tracking system under the condition of speed and acceleration limit, and provides a position command correction controller and a photoelectric tracking system

[0006] In addition, in view of the traditional optimal time control method's poor robustness, chattering, and inability to track ramp signals, the present invention improves the design of the optimal trajectory and optimal control law, and designs position command correction based on the improved optimal time control method. controller for fast tracking and correction of a given position command

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