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Ultima descărcare din IBN: 2022-06-24 12:55 |
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620.9+621.314 (5) |
Общая энергетика (550) |
Электротехника (1154) |
SM ISO690:2012 OLESCHUK, Valentin, ERMURATSKII, Vladimir. Cascaded inverters with synchronized modulation for transformer-based photovoltaic installation. In: Energetica Moldovei. Aspecte regionale de dezvoltare, Ed. Ediția III, 2016, 29 septembrie - 1 octombrie 2016, Chișinău. Chișinău, Republica Moldova: Institutul de Energetică al Academiei de Științe a Moldovei, 2016, Ediția III, pp. 533-540. ISBN 978-9975-4123-5-3. |
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Energetica Moldovei. Aspecte regionale de dezvoltare Ediția III, 2016 |
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Conferința "Energetica Moldovei" Ediția III, 2016, Chișinău, Moldova, 29 septembrie - 1 octombrie 2016 | ||||||
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CZU: 620.9+621.314 | ||||||
Pag. 533-540 | ||||||
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This paper presents results of research of modulation processes in power conversion system with triple voltage source inverters, supplied by photovoltaic (PV) strings, and connected to a transformer. Four-winding transformer has in this case specific connections between the secondary windings and inverters, allowing providing of multilevel voltages at secondary windings of the transformer. Specialized space-vector-based strategy of pulsewidth modulation (PWM) has been used for control of inverters, insuring quarter-wave symmetry of winding voltages for any modulation indices and switching frequency of inverters. Analysis and comparison of harmonic composition of winding voltages and output voltages of inverters has been done on the base of simulation of system with three basic variants of the scheme of synchronized modulation. |
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Cuvinte-cheie voltage source inverter, photovoltaic panels and strings, modulation scheme, voltage synchronization |
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