Electromagnetic Mechanism of Synchronous Operation of the Brushless Doubly-Fed Machine

摘要

The Brushkss Doubly-Fed Machine is a machine which incorporates the robustness of the squirrel cage induction machine and the speed and power factor control of a synchronous machine. The electromagnetic environment within the Brushless Doubly-Fed Machine is investigated using simple formulas in order to develop an intuitive feel for the mechanism which enables precise speed control of the machine. The concept of cross coupling from one stator winding to the other stator winding via the rotor is described and verified by experiment.