A current source inverter with series connected AC capacitors for photovoltaic application with grid fault ride through capability

Photong, Chonlatee; Klumpner, Christian; Wheeler, Patrick

Abstract

The current source inverter (CSI) is preferred to interface a renewable source such photovoltaics (PV) to the AC power grid because it can provide smooth current source in the DC side, which fits to the PV behaviour and also steps-up the voltage from DC side to AC side, which allows smaller and safer DC voltage levels to be used. However, the CSI has the problem that during an AC grid fault, it cannot operate properly. In this paper, a single-stage power conversion approach based on a CSI inverter with series capacitors is proposed, proven to provide improved efficiency and smaller DC inductor size and the capability to ride through AC grid faults with full reactive power injection support when compared to a standard CSI.

Citation

Photong, C., Klumpner, C., & Wheeler, P. A current source inverter with series connected AC capacitors for photovoltaic application with grid fault ride through capability. Presented at 35th Annual Conference of IEEE Industrial Electronics (IECON 2009)

• Conference Name: 35th Annual Conference of IEEE Industrial Electronics (IECON 2009)
• End Date: Nov 5, 2009
• Acceptance Date: Jul 17, 2009
• Deposit Date: Jul 14, 2016
• Peer Reviewed: Peer Reviewed
• Book Title: 2009 35th Annual Conference of IEEE Industrial Electronics
• DOI: https://doi.org/10.1109/IECON.2009.5414954
• Keywords: Invertors, Photovoltaic Power Systems, Power Capacitors, Power Grids, Power System Faults, Power System Protection
• Public URL: https://nottingham-repository.worktribe.com/output/705497
• Publisher URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5414954
• Related Public URLs: http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=12502
• Additional Information: Published in: IECON 2009 : proceedings, 35th Annual Conference of the IEEE Industrial Electronics Society, Alfandega Congress Center, Porto, Portugal, 03-05 November, 2009. Piscataway, N.J. : IEEE, 2009. ISBN: 978-1-4244-4649-0. pp. 390-396, doi:10.1109/IECON.2009.5414954 © 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
• Contract Date: Jul 14, 2016