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Linear induction power motor electromagnetic design and control strategy
Author: HuZhenZhen
Tutor: WangBingFeng
School: University of Electronic Science and Technology
Course: Detection Technology and Automation
Keywords: LIM Servo Control SVPWM Maxwell 2D Matlab/Simulink Fuzzy Control
CLC: TM346
Type: Master's thesis
Year: 2011
Downloads: 43
Quote: 0
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Abstract
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Linear induction motor transforms the electrical energy directly into mechanical energy without electric drive device. It is simple in structure, without intermediate transmission devices andenvironmental pollution. For these reasons, linear motor has been widely used in many fields such as transportation, military, aviation and so on. The motor with good performance has become very necessary.In this paper, we merged the motor design, magnetic simulation and control strategy into the whole and researched it. We modeled the motor considering the special edge effect and introduced the compensation parameters. And we proposed to use the fuzzy loop control strategy to control the motor.we definitely designed a 5kW linear induction motor, including the size calculation of primary and secondary, the parameters calculation of equivalent circuit. Then we simulated the transient electromagnetic characteristics and performances of the motor in the Maxwell 2D software.Field oriented control strategy makes the linear induction motor to have the similar the performance with the DC motor. Therefore, we adopted the vector control method with the SVPWM technology as the basic servo-control strategy. We respectively established the LIM and SVPWM model in the Matlab / Simulink to form the open-loop control system and analyzed the characteristics of it.In order to obtain the better performance, fuzzy control algorithm is introduced into the closed-loop control. Fuzzy control does not depend on the precise mathematical model of objects. Finally, we established the double loop control systema and analyzed the dynamic and static characteristics of it to verify the superiority of the fuzzy closed loop control strategy.
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CLC: > Industrial Technology > Electrotechnical > Motor > AC motor > Induction motor
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