Sensorless control strategy for power smoothing in wind-diesel applications

Sensorless control strategy for power smoothing in wind-diesel applications

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A novel sensorless control strategy for power smoothing in wind-diesel applications is presented. The system is based on a direct rotor flux oriented vector controlled induction machine driving a flywheel. A flux weakening control strategy is implemented to operate the induction machine up to twice the base speed. To estimate the speed a speed observer is used. Experimental results, showing excellent performance, are discussed.


    1. 1)
      • R. Cardenas , R. Peña , G. Asher , J. Clare . Control strategies for enhanced power smoothing in wind energy systems using a flywheel driven by a vector controlled induction machine. IEEE Trans. Ind. Electron. , 3 , 625 - 635
    2. 2)
      • S. Kim , S. Sul . Voltage control strategy for maximum torque operation of an induction machine in the field weakening range. IEEE Trans. Ind. Electron. , 4 , 512 - 518
    3. 3)
      • C. Schauder . Adaptive speed identification for vector control of induction motors without rotational transducers. IEEE Trans. Ind. Appl. , 5 , 1054 - 1061

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