Rapid-auto-collimation reflector adaptive vibration suppressing tracking control method
A technology of vibration suppression and tracking control, applied in the control using feedback, etc., can solve the problems of increasing control error of control algorithm, increasing difficulty of accurate beam positioning, reducing system control accuracy and robustness, etc., so as to improve control accuracy and robustness. Sticky, real-time, and stable effects
Inactive Publication Date: 2015-11-04
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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[0003] In the actual application process of the fast self-collimating mirror, there are mainly the following three problems: the mirror itself is often placed in a vibrating environment, which increases the difficulty of realizing the accurate positioning of the beam; the reference required in the adaptive control algorithm The signal sensor can't guarantee absolute stillness, so it can't reflect all the information related to the disturbance signal, resulting in an increase in the control error of the existing control algorithm; in addition, in the implementation of the existing control algorithm, the nonlinear characteristics of the driver itself are usually ignored and adopted linear controller, which also reduces the control accuracy and robustness of the system
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[0036] The present invention will be further described in detail below in conjunction with the examples.
[0037] The invention discloses a fast self-collimating mirror self-adaptive vibration suppression tracking control method, which is used to realize the stable transmission of laser light beams and belongs to the field of nonlinear system vibration control.
[0038] Such as figure 1 As shown, this method uses the FX-RLS feed-forward controller and the FX-RLS feedback controller to actively control the vibration when the reference signal r(n) and the disturbance signal d(n) are not fully correlated; the proportional-integral controller is used for Improve system stability and robustness, and correct for initial beam drift; fast hysteresis compensators compensate for dynamic hysteresis nonlinearities present in fast autocollimating mirrors. The FX-RLS feed-forward controller, FX-RLS feedback controller and proportional-integral controller are connected in parallel and then ...
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The invention relates to a rapid-auto-collimation reflector adaptive vibration suppressing tracking control method which belongs to the non-linear system vibration control field. The method comprises the following steps that an FX-RLS feedforward controller and an FX-RLS feedback controller perform vibration active control on the non-full-correlation condition of reference signals and disturbance signals; a PI (proportional-integral) controller is used for improving system stability and robustness and further correcting the drift of an initial light beam; and a rapid retardation compensator compensates the dynamic retardation non-linearity existing in a rapid-auto-collimation reflector. After being connected in a parallel way, the FX-RLS feedforward controller, the FX-RLS feedback controller and the PI controller are further serially connected with the rapid retardation compensator. Generated control signals are output to a driver in the rapid-auto-collimation reflector through a power amplifier. A mirror face is rotated so that the laser beam reflecting angle is adjusted. Real-time stable control on output light beams is achieved. The method has the advantages of strong real-time performance, high stability and high-precision control. By means of the method, light beam stable tracking control of the rapid-auto-collimation reflector in a vibration condition is achieved.
Description
technical field [0001] The invention relates to a fast self-collimating reflector adaptive vibration suppression tracking control method, in particular, refers to a fast self-collimating reflector realizes the stable tracking control method of light beams in a vibrating environment. Background technique [0002] In the oxygen iodine chemical laser transmission system, the fast self-collimating mirror is used as the actuator of the precision subsystem of the compound axis control system to correct the tracking error of the coarse correction system and the beam drift caused by platform vibration, torque disturbance and atmospheric disturbance and jitter to achieve stable transmission control of the beam. [0003] In the actual application process of the fast self-collimating mirror, there are mainly the following three problems: the mirror itself is often placed in a vibrating environment, which increases the difficulty of realizing the accurate positioning of the beam; the re...
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IPC IPC(8): G05D3/12
Inventor 马艳华张增宝刘嵚张治国何鑫王麟金玉奇
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI