In this project, a model-based design of a line-interactive Uninterruptible Power Supply (UPS) was developed. To mitigate power quality problems, the solution uses an active power filter based on a four-leg inverter and an energy storage system with electrostatic double-layer capacitors, known as supercapacitors, to withstand power grid voltage transients up to 3 seconds, in a 40kVA line-interactive UPS.
Subject Areas: Power quality; supercaps energy storage; four-leg inverter/active filter; line-interactive UPS
Ricardo Luís 1,2* , Armando Cordeiro 1,2, Hiren Canacsinh 2, Miguel Chaves 2, Paulo Gamboa 2
1Low Carbon Energy Conversion R&D Group, Lisboa, Portugal
2Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Portugal
*Researcher to whom correspondence should be addressed.
Status: FinishedStart: 01/Oct/2017 End: 31/May/2018