Investigations in the modelling and control of a medium voltage hybrid inverter system that uses a low voltage /low power rated auxiliary current source inverter

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Papadopoulos, Savvas, Rashed, Mohamed, Klumpner, Christian and Wheeler, Patrick (2016) Investigations in the modelling and control of a medium voltage hybrid inverter system that uses a low voltage /low power rated auxiliary current source inverter. IEEE Journal of Emerging and Selected Topics in Power Electronics, 4 (1). pp. 126-140. ISSN 2168-6785

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Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7294613

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 stable operation. Experimental validation of active ripple cancellation has been provided at 3kW.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/978000
Additional Information:	© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.
Keywords:	Active filters, Noise cancellation, Nonlinear filters
Schools/Departments:	University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number:	https://doi.org/10.1109/JESTPE.2015.2488631
Depositing User:	Burns, Rebecca
Date Deposited:	11 Mar 2016 11:28
Last Modified:	15 Aug 2024 15:32
URI:	https://eprints.nottingham.ac.uk/id/eprint/32220

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