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The Research of Dual Linear Motors Synchronous Drive System

Author: NianHaiWei
Tutor: GuoQingDing
School: Shenyang University of Technology
Course: Power Electronics and Power Drives
Keywords: Linear Motor Synchronous Control Single Nerve Unit Fuzzy Control Repetitive Control
CLC: TM359.4
Type: Master's thesis
Year: 2006
Downloads: 351
Quote: 4
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Abstract


Based on the National Natural Science Foundation project named "Theory of Dynamic Precision Synchronization Traverse and Research of Realization Methods for Linear Servo Dual Position Loops System(No.50075057)". The problem of the dual linear motors synchronous drive system is researched in the paper, such as the synchronous drive for gantry-moving milling machines, based on the former production, two methods of control are brought forward which are faster and more exact.First, the fuzzy PID control method based on the single nerve unit compensation, it combines the fuzzy PID controller and the single nerve unit PID controller. Add the multiplicity controller into the system as the velocity controller. The method contains both the merit of fuzzy control and the one of single nerve unit control. Such as the fuzzy controller doesn’t need the complex calculation, so it can meet the rapidity. At the same time, the single nerve unit control can solve the problem that caused by the biased empirical values of the fuzzy controller. So it can meet the requirement of the precision. Certificated by simulation of MATLAB, the method has better performance than ever before.Second, the synchronous drive method based on repetitive control compensation, which adds the repetitive controller into the system as the dynamic compensation to the load, it can effectively limiting the falling of the system’s performance which is produced by the changing of the equivalent inertia and the periodic disturb signal under the periodic signal input. So it can improve system’s synchronous performance. Certificated by simulation of MATLAB, the method has better performance.

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CLC: > Industrial Technology > Electrotechnical > Motor > A special motor > Linear motor
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