Abstract
Single-phase transformerless inverter is widely used in low-power photovoltaic (PV) grid-connected systems due to its small size, high efficiency and low cost. This paper proposes a novel high efficiency transformerless single-phase three-level-based photovoltaic inverter. The topology is simulated and experimentally validated in a 1.2-kW prototype and a comparison with three-level diode clamped inverter is performed. The results show that the proposed topology retains the positive characteristics of the three-level diode clamped inverter; namely, the nongeneration of variable total common-mode voltage, the reduced current ripple, and the high efficiency. The advantage of the proposed topology is that it reduces the input voltage by half compared with the three-level diode clamped inverter.
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Yang, X., Wang, Y. (2011). A Novel Transformerless Single-Phase Three-Level Photovoltaic Inverter. In: Ma, M. (eds) Communication Systems and Information Technology. Lecture Notes in Electrical Engineering, vol 100. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21762-3_41
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DOI: https://doi.org/10.1007/978-3-642-21762-3_41
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-21761-6
Online ISBN: 978-3-642-21762-3
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