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A Semi-physical Real-time Simulation Environment Research for Satellite Attitude Control System

Author: WuHan
Tutor: WeiZuoLong
School: Huazhong University of Science and Technology
Course: Communication and Information System
Keywords: Semi- physical Simulation xPC Target Neural Network Satellite Attitude Control System
CLC: TP391.9
Type: Master's thesis
Year: 2009
Downloads: 84
Quote: 0
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Abstract


Semi-physical simulation technologies for real-time system development cost , shorten development cycles, reduce risk , improve reliability, especially in the design stage of the system is complex and large-scale control system design stage play an extremely important role. This paper focuses on xPC target -based semi- physical simulation environment to design and implementation as well as satellite attitude control system optimization problem of the control law and application of satellite attitude control system built semi-physical model testing real-time simulation environment . Firstly, a brief introduction to semi-physical simulation technology development and the status quo , based on the analysis of the semi-physical simulation environment, the basic component. Help to build satellite attitude control system real-time simulation environment semi-physical meaning. Secondly, through the narrative of several real-time simulation technology solutions , selected MATLABRTWxPC target as to achieve real-time semi-physical simulation tools , and real-time simulation technology MATLABRTWxPC target the relevant knowledge described in detail , focusing on analysis of the environment in real time. Detailed description of the application xPC target real-time simulation environment to establish semi-physical approach for environmental design control interface. Environmental testing , reliability and timeliness verification environment . Again , focusing on a satellite attitude control system, the control law , elaborated using the Euler angles and the error quaternion method to describe the satellite attitude . By comparing the test to verify the control law in using Euler angles and the error quaternion describe two methods when satellite attitude differences. The traditional PID controller , the application of an improved neural network PID controller design , by comparing the test to verify the control law is modified PID controller PID controller is superior to conventional control law . Finally, the introduction of satellite attitude control system physical reaction wheels , satellite attitude control system is composed of semi-physical simulation models in xPC target semi- physical simulation of real-time simulation environment, the model , the test results show that : xPC Target real-time simulation environment with good and good reliability.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Computer simulation
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