Abstract

Interface between electric grids and renewable energy sources are of a big concern to researchers worldwide. Many efforts are applied to obtain converter topologies and modulation techniques with increasing features regarding switching behavior, input and output distortion, efficiency, switches utilization ratio and reliability. Interfacing constant power sources with sinusoidal systems require huge storage capabilities to compensate the oscillating output power. This storage implies higher costs, lower reliability and bulkier systems. In this paper a new modulation technique for a single phase Current Source Inverter (CSI) with an Active Buffer (AB) is presented. The AB allows to reduce the size and ripple requirements of the storage element, increasing reliability and improving overall performance.

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