Darko Ostojic

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A novel quad-inverter configuration for multiphase multi-level ac motor drives is analyzed in this paper. The proposed scheme is based on four conventional 2-level three-phase voltage source inverters (VSIs) supplying the open-end windings of a dual three-phase motor (asymmetric six-phase machine), quadrupling the power capability of a single VSI with given(More)
A novel scheme for three-phase grid-connected photovoltaic (PV) generation systems is presented in this paper. The scheme is based on two insulated strings of PV panels, each one feeding the dc bus of a standard two-level three-phase voltagesource inverter (VSI). The inverters are connected to the grid by a three-phase transformer having open-end windings(More)
1 Gabriele Grandi, Darko Ostojic, Claudio Rossi, and Domenico Casadei are with the Dept. of Electical Engineering, University of Bologna, Bologna, Italy (e-mail: <name.surname>@mail.ing.unibo.it). Abstract–-A novel scheme for three-phase grid-connected photovoltaic (PV) generation systems is presented in this paper. The proposed scheme is based on two(More)
A complete set of experimental tests on a novel conversion scheme for three-phase grid-connected photovoltaic (PV) generation systems is presented in this paper. The proposed scheme is based on two insulated strings of PV panels, each one feeding a standard two-level three-phase voltage source inverter (VSI). The inverters are connected to grid by a(More)
A novel MPPT algorithm for three-phase grid-connected photovoltaic generation systems is presented in this paper. Reference is made to a conversion scheme consisting in two balanced arrays of PV mod&#x00AD;ules, each one feeding a standard 2-level three-phase voltage source inverter (VSI). The dc-link volt&#x00AD;ages of each VSI are regulated according(More)
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