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Two problems must be solved in the speed sensorless vector control of dual stator-winding induction generator (DWIG) working as the integrated starter/generator in the variable frequency ac (VFAC) aircraft power system: the speed estimation and the rotor flux observation. This paper proposes a novel reduced-order extended Kalman filter (EKF) to estimate the speed accurately even in the starting process...
In this paper, the performance of the dual stator-winding induction generator (DWIG) variable frequency ac (VFAC) generating system with unbalanced loads is analyzed, and an asymmetrical operation analysis method based on a three-port load network model is proposed. This method has four key steps: (1) deriving the three-port load network model for three-phase four-line unbalanced loads; (2) establishing...
In this paper, a novel vector control strategy for variable frequency AC (VFAC) power system based on the dual stator-winding induction generator (DWIG) is proposed. The mathematical model of DWIG is investigated, which shows the model of DWIG can be simplified as a single stator-winding induction generator when the two sets of stator windings are tight coupled. The simulation results verify the principle...
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