Improved fast reflecting mirror disturbance observation compensation control method based on multi-closed loop

A disturbance observation and compensation control technology, applied in adaptive control, general control system, control/regulation system, etc., can solve the problems of discarding system compensation capability, ineffective low-frequency disturbance suppression capability, and system instability, so as to improve disturbance suppression. ability, reducing disturbance suppression residuals, and cost-saving effects

Inactive Publication Date: 2017-06-09
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, from the theoretical and experimental results, this method can only improve the suppression ability of the system against medium-frequency disturbances, but is basically ineffective in improving the suppression ability of low-frequency disturbances.
The reason is that in order to avoid the instability of the system caused by the double integral saturation in the compensation controller, this method has to abandon the compensation ability of the system at low frequencies

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  • Improved fast reflecting mirror disturbance observation compensation control method based on multi-closed loop
  • Improved fast reflecting mirror disturbance observation compensation control method based on multi-closed loop
  • Improved fast reflecting mirror disturbance observation compensation control method based on multi-closed loop

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[0022] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] as attached figure 1 Shown is a control block diagram of an improved multi-closed-loop based disturbance observation compensation control method for fast mirrors, which includes an improved disturbance observation compensator inner loop, acceleration loop, speed loop, and CCD position loop; using the improved disturbance observation compensation The controller control method is combined with the traditional three-closed-loop control method, and the observation and estimation of the acceleration is further used to feed forward, thereby improving the disturbance suppression ability of the system. The feedforward node is the input of the acceleration controller, so the feedforward controller as a whole exhibits a differential characteristic, so it is essentially jerk feedforward. The specific implementation steps of adoptin...

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Abstract

The invention discloses an improved fast reflecting mirror disturbance observation compensation control method based on multi-closed loops, and solves the problems that an existing fast reflecting mirror stabilized platform is poor in low frequency disturbance inhibition capability, and cannot satisfy higher precision stabilization control system demands; the method can improve a conventional disturbance observer on the multi-closed loop control basis, thus moving forward compensation nodes, using an acceleration controller to simplify a disturbance compensation object, smartly avoiding the system low frequency compensation capability deprivation problems caused by twice integral windup in a conventional compensation controller, and strongly improving the system low frequency disturbance observation compensation inhibition capability; the method can optimize the system on the control algorithm, and no extra sensor is needed, thus ensuring the system original characteristics, and saving cost; in addition, the method can simplify the control structure, and can be easily realized in engineering.

Description

technical field [0001] The invention belongs to the field of photoelectric inertial stability control, and specifically relates to an improved multi-closed-loop based fast mirror disturbance observation compensation control method, which mainly improves the low-frequency disturbance isolation capability of the system, thereby further improving the tracking performance of the photoelectric tracking equipment of the motion platform. Background technique [0002] In photoelectric tracking equipment, due to the characteristics of small inertia and high bandwidth, fast mirrors have been widely used to realize fine tracking control loops. The fast mirror platform on the moving carrier not only needs to complete the beam orientation, but also needs to complete the suppression of the carrier disturbance, so as to ensure the overall tracking performance of the device. For example, in inter-satellite optical communication equipment, the high bandwidth jitter of the satellite will redu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/04
Inventor 邓超毛耀任维刘琼张超
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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