Sinusoidal Three-Phase Current Reconstruction and Control Using a DC-Link Current Sensor and a Curve-Fitting Observer

@article{Saritha2007SinusoidalTC,
  title={Sinusoidal Three-Phase Current Reconstruction and Control Using a DC-Link Current Sensor and a Curve-Fitting Observer},
  author={B. Saritha and Panappakkam Arumugam Janakiraman},
  journal={IEEE Transactions on Industrial Electronics},
  year={2007},
  volume={54},
  pages={2657-2664}
}
Successful operation of three-phase current controllers requires measurement of the instantaneous values of phase currents. An innovative method to estimate the three-phase currents from dc-link current is presented. A sinusoidal curve-fitting observer that does not use any of the load parameters is employed. Using the firing signals and the dc-link current for corrective action, the observer generates stable three-phase feedback signals, even during short periods when the phase current… CONTINUE READING
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