Complex Vector Model of the Brushless Doubly Fed Machine in Unified Reference Frame

 

S. ATALLAH

Laboratoire des Systèmes Propulsion-Induction Electromagnétiques LSP-IE’2000 Batna EL-Oued, Algeria

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D. BENATTOUS

Institute of Science Technology, University Center of El-Oued El-Oued, Algeria

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M.-S. NAIT-SAID

Laboratoire des Systèmes Propulsion-Induction Electromagnétiques LSP-IE’2000 Batna, Algeria

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Abstract:

The Brushless Doubly Fed Machine (BDFM) is a machine which incorporates the robustness of the squirrel cage induction machine and the speed and power factor control of a synchronous machine. In this paper, a detailed mathematical derivation of the BDFM unified d–q reference frame model is introduced. The model is based on coupled magnetic circuit theory and complex space-vector notation. Then the obtained dynamic model of the machine will be finally tested in simulation workbench using MATLAB/SIMULINK in order to verify the proposed model. This way, a simple dq model can be established, which could be an interesting tool for control synthesis tasks.

 

Keywords:Brushless Doubly Fed Machine (BDFM), Cross Coupling, Control Winding (CW), Power Winding (PW), Variable Speed Generation, Unified Reference Frame Model

 

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