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The Research of Vector Control Method of Cage Rotor Brushless Double-Fed Machine Based on Dual-Synchronous Coordinate System
Author: LiJianXin
Tutor: WangZheng；ZhangFengGe
School: Shenyang University of Technology
Course: Power Electronics and Power Drives
Keywords: BDFM Double Synchronous Vector Control Flux Orient
CLC: TM359.9
Type: Master's thesis
Year: 2009
Downloads: 142
Quote: 1
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Abstract
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The development history of Brushless Doubly-Fed Machine (BDFM) and the application prospects of BDFM in wind power generation are introduced in this thesis. Because of BDFM’s great significance to the wind power generation, this topic of the paper is necessary to be researched. The basic theories of BDFM, such as the structure and operating theory, the pole numbers modulation and the magnetic field analysis, the electromechanical energy conversion and the motion equation analysis, are introduced amply.With the network model, the d-q synchronous reference frame mathematical model of BDFM is deduced. So the simulation system of BDFM’s d-q synchronous reference frame mathematical model is built in matlab/simulink. Then, the correctness and the feasibility of the simulation system are proved by the asynchronous operation.The control strategies of BDFM are talked one by one. In the end, the vector control based on dual-synchronous coordinate system is picked to control the BDFM in order to simplify the mathematical model. Because the BDFM have two stator windings with different pole numbers, it’s not suitable to use the method of field orientation with one synchronous reference frame.So the dual-synchronous coordinate system is chosen, power winding and control winding is field-oriented separately. According to Dual-synchronous Coordinate System, the vector control algorithm for BDFM is derived. According to the vector control algorithm, the Simulation of BDFM’s vector control system based on dual-synchronous coordinate system is built. Then, the anti interference performance and the rapidity are proved by simulation waveform.
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CLC: > Industrial Technology > Electrotechnical > Motor > A special motor > Other
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