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Large-scale permanent magnet generators with full power electronic converters are of increasing interest to many wind turbine manufacturers. These systems offer an efficient and reliable solution for offshore and low wind sites. However, the advantages of these generators necessitate a system design approach when selecting a power electronic drive and designing to meet the toughest grid code elements...
This paper presents an improved direct torque control (DTC) scheme for the induction motor (IM) drives. The proposed method is based on the optimal preview control theory and utilizes a synthesized control model for the IM incorporating the electromagnetic torque as a state variable. The derived optimal preview controller achieves direct control over the machine flux and torque via an optimized stator...
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