Photovoltaic Power Conversion System Based on Cascaded Inverters with Synchronized Space-Vector Modulation

0323611 - ÚT 2010 RIV ES eng C - Conference Paper (international conference)
Oleschuk, V. - Tlustý, J. - Valouch, Viktor
Photovoltaic Power Conversion System Based on Cascaded Inverters with Synchronized Space-Vector Modulation.
[Systém fotovoltaické konverze energie s kaskádními invertory se synchronizovanou vektorovou modulací.]
International Conference on Renewable Energies and Power Quality (ICREPQ 09). Valencia: Universidad Politecnica, 2009, s. 1-5. ISBN 978-84-612-8014-8.
[International Conference on Renewable Energies and Power Quality (ICREPQ 09). Valencia (ES), 15.04.2009-17.04.2009]
R&D Projects: GA AV ČR IAA200760703
Institutional research plan: CEZ:AV0Z20570509
Keywords : cascaded two-level inverters * photovoltaic application * modulation strategy
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

The paper presents results of investigation of dual-inverter-bases power conversion system with synchronized pulsewith modulation (PWM) for photovoltaic application. This system topology includes two insulated strings of photovoltaic panels, feeding two standard three-phase inverters, connected to grid by a three-phase transformer with the open winding configuration on primary side. Algorithms of synchronized PWM provide in this case continuous voltage synchronization both in each inverter and in the load. Simulations show a behavior of the systems with low switching frequency, with both continuous and discontinuous versions of synchronized PWM.

Algoritmus synchronizované modulace poskytuje spojitou synchronizaci napětí jak v každém střídači, tak i na zátěži. Simulace ukazují chování systému s nízkým spínacím kmitočtem pro spojitou i nespojitou verzi synchronizované modulace.
Permanent Link: http://hdl.handle.net/11104/0171516