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For the specifics of speed regulation of Surface Mounted Permanent Magnet Synchronous Motor (SPMSM), this paper presents a novel algorithm focused on phase-lead compensation and current estimation. Conventional speed control algorithm was commonly consisted of a speed regulator and a current regulator which based on Filed Orient Control (FOC), however, the complicated control scheme of FOC has brought...
In this paper, a novel E-core bearingless flux-switching permanent-magnet (BFSPM) motor is presented to overcome the shortcomings of rotor permanent-magnet-type bearingless motors. The basic structure and the operation principle are first described. In addition, the mathematical models of radial suspension forces and torque are deduced. Finally, based on the finite-element analysis, the optimization...
This paper focuses on the development of maximum wind power extraction strategies for variable speed constant frequency (VSCF) grid-connected wind power generation systems with a doubly fed induction generator (DFIG). A new control method is proposed by directly controlling the DFIG rotor current to follow an optimal condition for not only the extracted maximum power of the wind turbine below the...
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