Fault-tolerant topology of a grid-connected PV inverter coupled by a Scott transformer
- 1 November 2012
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in 2012 10th International Power & Energy Conference (IPEC)
Abstract
A grid-connected photovoltaic(PV) power plant is mainly based on power electronics equipments which are considered as the most vulnerable parts in a PV system. In order to increase the reliability of modular grid-connected PV panel, a solution by using a Scott transformer is presented to reduce the number of switches and to continuously operate the PV system in case of switch-failures of the power converter. The three-phase type PV inverter is analyzed in the normal and fault-operation. The simulation has shown that fault tolerance can be achieved with the proposed system configuration to give a redundancy of power switches in an Integrated power electronic module. Index Terms-Power converter, Scott transformer, redundant components, fault-tolerant, grid-connected inverter, grid-tie, reference frame, Clarke transformation.Keywords
This publication has 5 references indexed in Scilit:
- Three-phase multilevel inverter based on LeBlanc transformerPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2011
- A modular multilevel power converter system for photovoltaic applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2011
- Flexible power converters for the fault tolerant operation of Micro-GridsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2010
- A fault tolerant converter topology for wind energy conversion system with doubly fed induction generatorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- A Review of Single-Phase Grid-Connected Inverters for Photovoltaic ModulesIEEE Transactions on Industry Applications, 2005