Abstract
This work deals with a robust frequency cascaded adaptive complex filter (ACF) control for grid interactive photovoltaic (PV) system. The incorporated control algorithm not only extracts fundamental frequency orthogonal components of load current, but it also acts as a frequency adaptive controller. It acts as a distribution static compensator (DSTATCOM) when generation from PV array is unavailable, besides injecting active power in the distribution network, and reducing reactive power loading on the utility network by mitigating harmonics in presence of generation from PV array. The proposed algorithm improves transient response at dynamic loading and irradiance change. The harmonic contents in distribution network voltage and utility current are achieved within the IEEE-519 standard.
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