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In this paper an investigation of the synchronous machine behavior during a field short-circuit as the generator is connected to the 50 Hz grid is presented. The behavior analysis has been carried out using the Finite Element Method (FEM) for two cases. In the first one the rotor speed is held constant and equal to the synchronous one, while in the second case the rotor speed is controlled by a PI-controller...
The doubly excited brushless reluctance machine (DEBRM) is a new type of reluctance machine and is attractive for variable-speed constant-frequency wind power generation systems. The DEBRM system features not only simplicity, robustness and reliability of the reluctance or cage-rotor inductance machines, but a much smaller power electronic converter, compared to a conventional AC induction machine...
Because of the negative-sequence magnetic field, the single-phase induction motor has higher temperature, lower output torque and lower efficiency comparing with three-phase induction motor. Based on negative-sequence magnetic field compensation principle, this paper presents a new type single-phase motor with a special stator windings configuration to weaken the negative sequence magnetic field and...
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