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Control method and compound control system for seeker stabilization platform

A technology for stabilizing platforms and control methods, applied in control/regulation systems, controllers with specific characteristics, electric controllers, etc., can solve problems such as limited PID anti-interference ability, achieve improved anti-interference and rapidity, Easy to achieve, simple structure effect

Active Publication Date: 2019-09-13
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is in order to overcome the above-mentioned deficiency of prior art, and provide a kind of control method of seeker stabilized platform, this method adopts effective three-loop control such as current loop, speed loop and position loop to seeker stabilized platform , to solve the problem of limited PID anti-disturbance ability in the prior art

Method used

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  • Control method and compound control system for seeker stabilization platform
  • Control method and compound control system for seeker stabilization platform
  • Control method and compound control system for seeker stabilization platform

Examples

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Embodiment 1

[0046] The schematic diagram of the semi-active laser seeker system is as follows: figure 1 As shown, it includes an optical system 10, a laser detector 20, a stable platform 30, a yaw motor 40, and the like. Among them, the performance of the pitch frame in the photoelectric stabilization platform 30 is verified by using the composite control system and control method proposed in this paper. The main indicators of the system are as follows: the maximum error of the steady-state speed of the system is less than 0.2°; the isolation of the system is less than or equal to 5% under the disturbance input of 7°1Hz; the bandwidth of the system speed loop 70 is not less than 15Hz.

[0047] The seeker stabilized platform 30 adopts a pitch and yaw double-frame structure, and a detection system, a gyro 60 and an angle sensor 50 are installed on the seeker stabilized platform 30 . The detection system is installed on the seeker stabilized platform 30 as a load, the gyroscope 60 is instal...

Embodiment 2

[0085] The schematic diagram of the semi-active laser seeker system is as follows: figure 1 As shown, it includes an optical system 10, a laser detector 20, a stable platform 30, a yaw motor 40, and the like. Among them, the performance of the pitch frame in the photoelectric stabilization platform 30 is verified by using the composite control system and control method proposed in this paper. The main indicators of the system are as follows: the maximum error of the steady-state speed of the system is less than 0.2°; the isolation of the system is less than or equal to 5% under the disturbance input of 7°1Hz; the bandwidth of the system speed loop 70 is not less than 15Hz.

[0086] The seeker stabilized platform 30 adopts a pitch and yaw double-frame structure, and a detection system, a gyro 60 and an angle sensor 50 are installed on the seeker stabilized platform 30 . The detection system is installed on the seeker stabilized platform 30 as a load, the gyroscope 60 is instal...

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Abstract

The invention discloses a control method and compound control system for a seeker stabilization platform. According to the control method, three-loop control over the seeker stabilization platform iscarried out. Three loops comprise a current loop, a speed loop and a position loop. The current loop is realized through adoption of a brush motor PWM power drive chip. The speed loop is realized through utilization of a compound control policy. The compound control policy comprises a butterworth filter, a disturbance observer, a notch filter and incomplete differential PID. The position loop is realized through adoption of a small integral PI or proportion controller. According to the compound control system for the seeker stabilization platform provided by the invention, the seeker stabilization platform is controlled through adoption of the control method for the seeker stabilization platform. According to the control method provided by the invention, system disturbance rejection and speediness can be effectively improved. The control method is easy to realize. The compound control system for the seeker stabilization platform has the advantages of simple structure and easy realization.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a control method and a compound control system for a stabilized platform of a seeker head. Background technique [0002] With the current guidance system's increasing demand for precise strike targets, higher requirements are placed on the performance of the seeker photoelectric stabilization platform. The seeker system is a device that integrates optical, mechanical and electrical technologies. Usually consists of a marker and electronic components. The position marker is located at the front end of the seeker, which is composed of an electro-optical stabilization platform and a detection system. It is the core component to realize the target detection, optical axis stabilization, follow-up and tracking of the guidance system. Among them, the main function of the photoelectric stabilization platform is to use the space stabilization function of the inertial sensor to isolate th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D29/00G05B11/42
CPCG05B11/42G05D29/00
Inventor 张明月张宏巍刘慧
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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