Voltage-sharing converter to supply single-phase asymmetrical four-level diode-clamped inverter with high power factor loads
|dc.identifier.citation||Boora, A. and Nami, A. and zare, F. and Ghosh, A. and Blaabjerg, F. 2010. Voltage-sharing converter to supply single-phase asymmetrical four-level diode-clamped inverter with high power factor loads. IEEE Transactions on Power Electronics. 25 (10): pp. 2507-2520.|
The output voltage quality of some of the single-phase multilevel inverters can be improved when their dc-link voltages are regulated asymmetrically. Symmetrical and asymmetrical multilevel diode-clamped inverters have the problem of dc-link capacitor voltage balancing, especially when power factor of the load is close to unity. In this paper, a new single-inductor multi-output dc/dc converter is proposed that can control the dc-link voltages of a single-phase diode-clamped inverter asymmetrically to achievevoltage quality enhancement. The circuit of the presented converter is explained and themain equations are developed. A control strategy is proposed and explained in details. To validate the versatilityof the proposed combination of the suggested dc–dc converter and the asymmetrical four-level diode-clamped inverter (ADCI), simulations and experiments have been directed. It is concluded that theproposed combination of introduced multioutput dc–dc converter and single-phase ADCI is a good candidate for power conversion in residential photovoltaic (PV) utilization.
|dc.publisher||IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC|
|dc.title||Voltage-sharing converter to supply single-phase asymmetrical four-level diode-clamped inverter with high power factor loads|
|dcterms.source.title||IEEE Transactions on Power Electronics|
|curtin.accessStatus||Fulltext not available|