Institutional Repository [SANDBOX]
Technical University of Crete
EN  |  EL

Search

Browse

My Space

Single-phase transformerless PV inverter topology with AC bypass and mid-DC-link voltage clamping

Orfanoudakis, G. I, Sharkh, S. M, Koutroulis Eftychios, Yuratich, M. A

Full record


URI: http://purl.tuc.gr/dl/dias/C86A15E9-EEFA-408A-A16F-B16F0554CE76
Year 2017
Type of Item Conference Full Paper
License
Details
Bibliographic Citation G. I. Orfanoudakis, S. M. Sharkh, E. Koutroulis and M. A. Yuratich, "Single-phase transformerless PV inverter topology with AC bypass and mid-DC-link voltage clamping," in 19th European Conference on Power Electronics and Applications, 2017. doi:10.23919/EPE17ECCEEurope.2017.8098973 https://doi.org/10.23919/EPE17ECCEEurope.2017.8098973
Appears in Collections

Summary

Transformerless PV inverters are known to generate undesirable ground leakage currents due to the lack of galvanic isolation between the PV array and the electric grid. This paper initially discusses the different types of transformerless PV inverter topologies that have been proposed to overcome this problem. It then proposes a new topology, which extends the commercially successful HERIC inverter with the addition of a mid-DC-link clamping configuration. Such configurations are known to cause a highly desirable reduction of the ground leakage currents, which is demonstrated through simulation results from MATLAB-Simulink and PLECS. The proposed topology is finally compared to other transformerless topologies with respect to other aspects, such as efficiency and component count.

Services

Statistics