A cascaded inverter for transformerless single-phasegrid-connected photovoltaic systems
Calais, M., Agelidis, V.G. and Dymond, M.S. (1999) A cascaded inverter for transformerless single-phasegrid-connected photovoltaic systems. In: Proceedings of World Renewable Energy Congress (WREC'99), 8 - 11 June, Kuala Lumpur, Malaysia pp. 353-358.
As part of a joint research project between CREST A and PowerSearch Ltd a 1.5 kW prototype single-phase grid-connected PV system incorporating a multilevel cascaded Inverter is currently under development. This paper reports on the design of the system and its control. Simulation results show the suitability of a control method using an optimised cyclic switching sequence and a Ramptime Zero Average Current Error control algorithm.
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