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Fractional order control method for fast reflector in photoelectric system

A fractional-order control, optoelectronic system technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problem of no fractional-order control method, etc., and achieve high bandwidth, good system performance, and high suppression capability. Effect

Active Publication Date: 2018-10-19
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, there is no precedent for the fractional order control method for the control system of the fast mirror.

Method used

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  • Fractional order control method for fast reflector in photoelectric system
  • Fractional order control method for fast reflector in photoelectric system
  • Fractional order control method for fast reflector in photoelectric system

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Embodiment Construction

[0018] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] The fractional-order control method is adopted in the fast mirror control system, that is, a fractional-order system between Type I and Type II systems is designed from the perspective of system performance, and the contradiction between the system type and the stability margin is neutralized .

[0020] The present invention takes figure 1 The fast mirror single-input single-output model shown is based on this. figure 1 In the block diagram shown, r(t) is the given position signal, e(t) is the position error signal, y(t) is the output signal, d(t) is the disturbance signal, C(s) is the controller, G( s) is the controlled object, u(t) is the control output, and F(s) is an ideal open-loop fractional system. The fractional-order control method proposed by the present invention includes three sequentially executed modules:...

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Abstract

The invention discloses a fractional order control method for a fast reflector in a photoelectric system. The number of integral links in the control system represents the type of the system. The higher the type, the stronger the disturbance suppression capability, but the type will decrease the stability margin of the system; for the contradiction between the type and the stability margin of thefast reflector control system in the photoelectric system, the method adjusts the fast mirror control system from the existing integer order type to the fractional order type having the order of 1 to2. In the system realization process, the method compromises the type and stability margin requirements, and ensures that the system has a proper phase margin reserve while improving the system type,so that the system has ideal error suppression characteristics and good stability. Compared with the existing fast reflector control system, the invention solves the design difficulties of the currentfast reflector control systems, and only needs to modify the existing controllers from the software, and has the advantages of obvious effect and convenient engineering application.

Description

technical field [0001] The invention relates to the field of photoelectric system control, in particular to a fractional-order control method for a fast reflector in a photoelectric system, which is suitable for a fast reflector control system in the photoelectric system that has high requirements for disturbance suppression capability and stability margin. Background technique [0002] In the fields of photoelectric measurement, astronomical observation, weapon control and laser communication, the photoelectric system plays an important role in ensuring that the system can quickly and accurately find and track targets. In recent years, with the improvement of precision requirements and the increasingly harsh working environment, people have put forward higher requirements for the disturbance suppression ability and stability of optoelectronic systems. As a key component with high-frequency response capability in optoelectronic systems, fast mirrors need to have stronger dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 周翕毛耀张超于伟任维
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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