Abstract
In order to the increase of the conventional inverter reliability used in PV systems, many diagnostic methods have been investigated to these converters reliability. These diagnostic methods are applied in order to detect and identify the IGBT's OCF. In this paper, the proposed diagnostic method is based on the normalized currents and current's slope information's. Due to the continuity importance in PV systems after the appearance of IGBT's OCF, this paper presents a SSTPI-IM diagnostic method and reconfiguration strategy controlled by the direct RFOC used in PV system. The fault reconfiguration is based on the change of the SSTPI topology to the FSTPI topology using relays and a redundant leg. The redundant leg is only used in the cases of IGBT’s fault’s appearance in more than one SSTPI leg. The effectiveness and performance of the proposed SSTPI-IM diagnostic method and reconfiguration strategy in terms of systems continuity and fast detection and reconfiguration are validated by the simulation results.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Renewable Energy Research
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
