Article Dans Une Revue IEEE Transactions on Power Electronics Année : 2003

Switching faults and safe control on an ARCP multicell flying capacitor inverter

Résumé

The auxiliary resonant commutated pole (ARCP) multicell converter is a soft-switched variant of the multicell converter. It is shown in this paper that the ARCP technique can be very efficiently used in multicell flying capacitor converters. The main properties of the resulting soft switching multicell converter are very similar to those of the hard-switched version. They are presented and validated by simulations as well as experimental results. In practice, due to the damping, the ARCP multicell converter can suffer from switching faults as in two-level ARCP inverters, but in the case of a multicell converter failures can occur in different cells. So, the main control strategies are evaluated and the switching process is discussed step by step, taking account of the main imperfections of actual control circuits. When they can occur, the switching faults are described and analyzed. Finally, an original quasisoft switching control that should give a high safety of operation is proposed. Experimental results obtained with a 900 V-100 A ARCP multicell inverter leg are given and the performances are compared with those of a hard-switched multicell inverter leg of the same rating.

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hal-05026860 , version 1 (09-04-2025)

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Christophe Turpin, François Forest, Frédéric Richardeau, Thierry Meynard, Alain Lacarnoy. Switching faults and safe control on an ARCP multicell flying capacitor inverter. IEEE Transactions on Power Electronics, 2003, 18 (5), pp.1158-1167. ⟨10.1109/TPEL.2003.816197⟩. ⟨hal-05026860⟩
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