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Study Of Vector Control On Asynchronous Motor Based On Matrix Converter Topology

Posted on:2007-08-23Degree:MasterType:Thesis
Country:ChinaCandidate:H M LaFull Text:PDF
GTID:2132360212471374Subject:Control theory and control engineering
Abstract/Summary:PDF Full Text Request
Vector Control is one of the best control methods for induction motor control system. It has special characteristics, which can independently control linkage and torque of induction motor, maintain the steady state and dynamic state of the motor. Matrix Converter is one kind if direct AC-AC converter, it has adjustable input power factor, adjustable output voltage, energy conversation on both way, etc characteristic which makes it one hottest research topic for induction motor control system.By studying a lot of numbers of research papers on Matrix Converter Topology published both domestic and international, I come to know about traditional bidirectional 9 switch topology, commutation technique and control strategy, after that study SPWM control topology for one kind of Voltage source Matrix Converter, then used one kind of switching method for Matrix Converter. According to Vector Control topology of Asynchronous Motor, in this thesis paper I used one kind of feed back non-liner compensation method based on double closed loop control structure where outer loop control the target and inner one control the current. Outer loop can be designed according to the requirements, current control inner loop can improve dynamic characteristic of the system, for achieve independent dynamic performance of Asynchronous Motor I added output current to the non-linear input voltage as feed forward compensation on base of traditional vector control topology which improve the dynamic-static performance of the system. Then base on SPWM control method let Matrix Converter supply the required voltage for Asynchronous Motor.At last, by using MATLAB 6.5 and Simulink tools I did the simulation for Asynchronous Motor control system, and simulation results shows that by using Matrix Converter topology based on vector control method, Asynchronous Motor has the best dynamic-static performance, proved the validity and feasibility of feed forward compensate Vector Control based on SPWM Control method.
Keywords/Search Tags:Matrix Converter, SPWM, Vector Control, Feed back Control
PDF Full Text Request
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