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Most dynamic characteristics analyses of magnetic bearing are based on the simplified mathematic model neglecting the non-linear electromagnetic relationship between the stator and rotor. This paper presents a detailed analysis and experimental study on the dynamic characteristics of magnetic bearings for a high speed permanent magnet motor. The analysis based on field-circuit coupling method can...
In this paper, a novel induction machine with inner and outer double rotors has been presented. The double rotors induction machine (DRIM) has the advantages of slow leakage inductance and high operation performance. This paper describes simply its structure and special windings. The electric-magnetic relationship and mathematic model of the DRIM have been built in actual coordinate, and the simulating...
After introducing simply the structure and operation theory of doubly-fed brushless machine (DFBM), the coupling parameters between main winding and auxiliary winding are analyzed. The mathematics model of the DFBM is derived and constant power angle control strategy in the real coordinate is also put forward in this paper. Based on SIMULINK technology, the common simulation module of DFBM has been...
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