Sze Sing Lee, Chee Shen Lim, Yam P. Siwakoti, and Kyo-Beum Lee, "Single-Stage Common-Ground Boost Inverter (S2CGBI) for Solar Photovoltaic Systems," in Proc. ECCE Conf., Sep./Oct. 2019, pp. 4229–4233. > Paper

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International Conference Sze Sing Lee, Chee Shen Lim, Yam P. Siwakoti, and Kyo-Beum Lee, "Single-Stage Common-Ground Boost Inverter (S2CGBI) for Solar Photovoltaic Systems," in Proc. ECCE Conf., Sep./Oct. 2019, pp. 4229–4233.

2019

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This paper presents a new transformerless inverter topology which is termed as a single-stage commonground boost inverter

(S2CGBI) for single-phase solar photovoltaic (PV) systems. The proposed topology provides a common-ground for both the dc source

and ac output to eliminate the leakage current induced by the parasitic capacitance of PV cells. Voltage-boosting is made possible

with the incorporation of only one inductor, which renders the realization of single-stage power conversion. The proposed pulse

width modulation (PWM) technique is capable of charging the inductor with a constant duty-cycle while guaranteeing ac output

generation. The operation of the proposed S2CGBI is analyzed. Simulation and experimental results are provided to validate the

effectiveness of the proposed topology and modulation scheme. 

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