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A new hybrid control method for multi-cell choppers. Application to power renewable energy systems

Bilal Amghar 1 Ikram El Abbassi 2 M.A.M. Mladjao 2 Abdelmoumen Darcherif 1
1 ECS-Lab
ECS-Lab - Électronique et Commande des Systèmes Laboratoire
Abstract : —The growing development of renewable energy opens new perspectives in the use of power converters, both in terms of technology and control. Unfortunately, conventional choppers set some serious problems, even those using "parallel or series multi-cell" technology. Indeed, the main problem in parallel multi-cell choppers is the possible imbalance of the currents in each cell. This may be due to the components imperfections (resistors, inductors) and/or to the circuits control (the signals have not exactly the same duty cycle). In this paper we propose a new generation of parallel multi-cell choppers specially designed for renewable plants. A reconfigura-tion of the control is proposed in response to a variation between the current branches. Numerical simulation results are presented and discussed to validate the proposed model.
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Submitted on : Tuesday, December 9, 2014 - 2:56:21 PM
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Bilal Amghar, Ikram El Abbassi, M.A.M. Mladjao, Abdelmoumen Darcherif. A new hybrid control method for multi-cell choppers. Application to power renewable energy systems. IRSEC’14, 2014, OUAZAZATE, Morocco. ⟨hal-01092799⟩

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