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The Design of Control System on Single-Axis Turntable

Author: LiZiChao
Tutor: SunTao
School: Harbin Institute of Technology
Course: Mechanical Manufacturing and Automation
Keywords: Turntable PC/104 Incremental photoelectric encoder Neural Network PID Controller
CLC: TH703
Type: Master's thesis
Year: 2008
Downloads: 179
Quote: 3
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Abstract


The uniaxial test turntable research background, in -depth analysis of the program with the principle of incremental code disk goniometer basis on the based PC/104 turntable rate , position and swing control system designed to achieve the entire turntable control system fully digital programs . Firstly, according to the the turntable system performance requirements and the actual situation , the use of code disc signals electronic subdivision goniometer discusses the mechanical composition of the turntable , control system components and their selection principle in general , and related components the mathematical model . Focuses on the system drive motor , the goniometer feedback components and amplifier selection principle and its mathematical model . Secondly , for the single-axis turntable control system dynamic indicators , PC/104 embedded computer control system designed to control the core focus . Correction strategy turntable system design is based on the mathematical model , using the classic control , and simulation testing . The results show that the classical PID can effectively control the accurate mathematical model of the physical object control effect is still good , and when the object is nonlinear . Turntable running at low speed in order to meet the high control accuracy and static and dynamic performance . This article to fully combine the respective strengths of the neural network and feedback control , PID controller based on neural network structure . Combination of the classic PID controller and neural network , not only to maintain the traditional PID controller is simple in principle , easy tuning , and take full advantage of the neural network of the nonlinear and time variability adaptability , developed for high-performance turntable beneficial attempt . Finally, we completed the project realization of the uniaxial test turntable control system , including the hardware circuit composed of various modules introduce and focuses on the motor drive circuit , the angle measurement circuit design and the control system software achieve . Through theoretical analysis , computer simulation , has fully proved the validity of the proposed algorithm based on neural network PID control . This is undoubtedly a valuable reference for the future design of the servo control system .

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