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Direct Power Control of an AFE Using Predictive Control

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4 Author(s)
Cortes, P. ; Dept. of Electron. Eng., Univ. Tec. Federico Santa Maria, Valparaiso ; Rodriguez, J. ; Antoniewicz, P. ; Kazmierkowski, M.

This paper presents a new control scheme for an active front-end rectifier using model-based predictive control. The control strategy minimizes a cost function, which represents the desired behavior of the converter. Future values of currents and power are predicted using a discrete-time model. The active and reactive powers are directly controlled by selecting the optimal switching state. The main advantages of this method are that there is no need of linear current controllers, coordinates transformations or modulators. The rectifier operates with sinusoidal input currents and unity power factor. Simulation and experimental results are presented to verify the performance of the proposed power control scheme.

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Power Electronics, IEEE Transactions on  (Volume:23 ,  Issue: 5 )