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Research on Active Disturbance Rejection Control of Digital Aim-stabilization System

Author: ZhangJianSong
Tutor: WanJianRu
School: Tianjin University
Course: Power Electronics and Power Drives
Keywords: Stabilized sighting system Disturbance Rejection Controller Tracking Differentiator Extended state observer Feedback linearization Nonlinear state error feedback
CLC: TP273
Type: Master's thesis
Year: 2007
Downloads: 93
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Abstract


In the long-term in-depth study of classic the PID and modern control theory based on the Han Jingqing researchers from the anti- rejection control technology algorithm is simple and easy to implement , high precision, anti-interference ability and other characteristics , can be successfully used for the anti- stabilized sighting the control of the system , the system performance will be largely improved. This article is based on this idea , the disturbance rejection control on the technology used in anti - stabilized sighting system control for the purpose of study . Firstly, the composition and working principle analytical study based on the stabilized sighting system , the establishment of a mathematical model of the three closed-loop . Determined through the analysis of the model , the the ADRC controller structure and discrete algorithms . Then, using the S-function system simulation model , after repeated analysis , debugging to determine the parameters of the various parts of the ADRC , simulation waveforms under the relevant parameters , and simulate the actual work of the platform , Add to interfere with anti torque system interfere with the ability to carry out inspection. Simulation results show that the disturbance rejection control technology designed on anti - stabilized sighting system , based on the PID control techniques, that compared to the static and dynamic performance and anti-jamming capability has been greatly improved . Focus on system circuit power supply circuit , the signal to the channel and power amplifier circuit design , and the design and debug process problems encountered and the solutions adopted were introduced . The core of the system hardware control circuit device is still selected TI's TMS320F2812, the operation speed can guarantee disturbance rejection control algorithm implementation, and rich software resources available . The program design part of the system is focused on the structure and flow chart of the procedure has been described . Finally, the swing system test and vibration test data , and compared with the test data obtained by the PID control technology to prove the feasibility and advantages of active disturbance rejection control technology for the anti- stabilized sighting system .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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