The paper presents a closed loop current control technique of three phase grid connected systems with a renewable energy source. The proposal optimizes the system design, permitting reduction of system losses and harmonics for the three phase grid connected system. The performance of the proposed controller of grid connected PV array with DC-DC converter and multilevel inverter is evaluated through MATLAB-Simulation. The results obtained with the proposed method are compared with those obtained when using without current controller for three-phase photovoltaic multilevel inverter in terms of THD and switching frequency. Experimental works were carried out with the PV module WAREE WS 100, which has a power rating of 10 W, 17 V output voltages and 1000 W=m2 ir-radiance. The test results show that the proposed design exhibits a good performance.
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[v1] 2016-01-17 06:43:47
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