Position instruction correction controller and photoelectric tracking system

A photoelectric tracking system and controller technology, applied in general control systems, control/regulation systems, adaptive control, etc., can solve the problems of inability to track ramp signals, poor robustness, and position oscillation overshoot, and improve position control. performance effect

Active Publication Date: 2020-04-14
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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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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  • Position instruction correction controller and photoelectric tracking system
  • Position instruction correction controller and photoelectric tracking system
  • Position instruction correction controller and photoelectric tracking system

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Embodiment Construction

[0046] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0047] In one of the embodiments, the present invention discloses a position command correction controller, the position command correction controller is located before the position controller in the photoelectric tracking system, and is used to control the receiving speed and acceleration limit requirements of the photoelectric tracking system The given position command θ r Carry out tracking and correction, and output the corrected position command θ cmd , specifically, the position command correction controller is based on the control model of the position command correction controller and the improved optimal time control method for the given position command θ r Make fast track and fixes. figure 1 The control structure block diagram of the controller is modified for the position command, the second-order dou...

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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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 刘京邓永停李洪文
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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