A hybrid inverter system for medium voltage applications using a low voltage auxiliary CSI

Papadopoulos, Savvas; Rashed, Mohamed; Klumpner, Christian; Wheeler, Pat

Abstract

Hybrid converters consist of a main inverter processing the bulk of the power with poor waveform performance and a fast and versatile auxiliary inverter to correct the distortion. In this paper, the main converter is a medium voltage NPC inverter and the auxiliary inverter is a low-voltage and low- current rated current source inverter (CSI), with series capacitor being used to minimize the CSI voltage stress. The result is a high output current quality which is obtained with a very low switching stress in the main converter and a very small added installed power (<4%) in the CSI. This paper expands this concept by investigating the hybridization of a medium voltage inverter with an existing LCL filter and investigates the additional challenges related to resonances and proposes a solution for stabile operation.

Citation

Papadopoulos, S., Rashed, M., Klumpner, C., & Wheeler, P. (2014, September). A hybrid inverter system for medium voltage applications using a low voltage auxiliary CSI. Presented at 2014 IEEE Energy Conversion Congress and Exposition (ECCE), Pittsburgh, PA, USA

• Conference Name: 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
• Start Date: Sep 14, 2014
• End Date: Sep 18, 2014
• Acceptance Date: May 3, 2014
• Online Publication Date: Nov 13, 2014
• Publication Date: 2014-09
• Deposit Date: Jul 14, 2016
• Publicly Available Date: Jul 14, 2016
• Peer Reviewed: Peer Reviewed
• Book Title: 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
• ISBN: 9781479957767
• DOI: https://doi.org/10.1109/ecce.2014.6953779
• Keywords: Distortion, Invertors
• Public URL: https://nottingham-repository.worktribe.com/output/735963
• Publisher URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6953779
• Related Public URLs: https://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=21325
• Additional Information: Published in: IEEE Energy Conversion Congress and Exposition (ECCE) 2014 14-18 Sept. 2014, Pittsburgh, Pa, USA. Piscataway, N.J. : IEEE, 2014. ISBN: 978-1-4799-5776-7. pp. 2809-2816, doi:10.1109/ECCE.2014.6953779 © 2014 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.