Position instruction correction controller and photoelectric tracking system

Abstract

The invention, which belongs to the technical field of AC motor control, relates to a position instruction correction controller and a photoelectric tracking system, thereby solving a problem of position oscillation overshoot caused by position error integration due to speed and acceleration amplitude limiting during the target capturing and position turning process of the photoelectric tracking system. The position instruction correction controller receives a given position instruction; the given position instruction is quickly tracked and corrected according to a control model of the position instruction correction controller and an improved optimal time control method; and a corrected position instruction is outputted. Since the position instruction correction controller tracks and corrects the given position instruction based on the control model of the position instruction correction controller and the improved optimal time control method and the speed amplitude limiting and acceleration amplitude limiting of the photoelectric tracking system are taken as amplitude limiting requirements, the output correction position instruction contains speed and acceleration amplitude limiting information, so that the position control performance of the photoelectric tracking system during target capture and position turning can be effectively improved.

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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