Energy Conversion Efficiency of Single-Phase Transformerless PV Inverters

Date

2013-11-30

Author

Özkan, Ziya
Hava, Ahmet Masum

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In grid-connected photovoltaic (PV) applications, power semiconductor energy conversion efficiency of PV inverters is one of the major figures of merits to evaluate and compare these systems as the payback ratio of the overall system is tightly related to the energy conversion efficiency and as semiconductor losses comprise the majority of energy losses. In order to wisely choose the PV inverter topology and associated semiconductors, analytic evaluation of semiconductor losses of topologies is required. Furthermore, the evaluation of these losses serves the purpose of designing PV inverters in terms of better thermal management and reliability. In this study, the analytical semiconductor efficiency evaluation of PV inverters promising high efficiency is performed for 3 kW and 10 kW power ratings based on selected semiconductor datasheets and average power per switching cycle (APPSC) method. A comparison of energy efficiency of topologies regarding power levels is provided.

Subject Keywords

Components circuits devices and systems, Fields waves and electromagnetics, Power energy and industry applications, Robotics and control systems, Switches, Topology, Inverters, Insulated gate bipolar transistors, Semiconductor diodes, MOSFET, Switching loss

URI

https://hdl.handle.net/11511/52841

Conference Name

8th International Conference on Electrical and Electronics Engineering (ELECO)

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

Z. Özkan and A. M. Hava, “Energy Conversion Efficiency of Single-Phase Transformerless PV Inverters,” presented at the 8th International Conference on Electrical and Electronics Engineering (ELECO), Bursa, Turkey, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52841.