Trade-off study of heat sink and output filter volume in a GaN HEMT based single phase inverter

Gurpinar, Emre and Castellazzi, Alberto (2017) Trade-off study of heat sink and output filter volume in a GaN HEMT based single phase inverter. IEEE Transactions on Power Electronics . ISSN 1941-0107

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Abstract

This paper presents the trade-off study of heat sink and output filter volume of a GaN HEMT based single phase inverter. The selected topology is three-level Active Neutral point Clamped (ANPC) inverter, and the main aim is to explore the benefits of the GaN HEMTs at 600 V blocking class on the system level efficiency, and power density under wide range of operating conditions. The paper starts by introducing the inverter topology, selected PWM scheme and followed by the device features, static and dynamic characterisation and continues with presenting and discussing the results of extensive experimental and analytical characterisation. After this, the impact of GaN HEMTs on inverter volume is discussed in terms of heat sink and output filter volume analysis under different switching frequency and heat sink temperature conditions. The calculation of heat sink volume and single stage LC output filter volume are presented with respect to experimental results of single phase prototype. The findings from static, dynamic characterisation and single phase prototype results clearly show that GaN HEMT has excellent switching performance under wide load current and heat sink temperature conditions. The high performance of the inverter lead to reduction of the combined total volume, including output filter and heat sink volume.

Item Type: Article
Additional Information: c2017 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: Wide bandgap (WBG) power devices; Gallium-nitride (GaN); HEMT; Three-level active neutral point clamped (3L-ANPC) converter; Photovoltaic (PV) systems
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: 10.1109/TPEL.2017.2730038
Depositing User: Burns, Rebecca
Date Deposited: 25 Oct 2017 07:17
Last Modified: 21 Nov 2017 18:16
URI: http://eprints.nottingham.ac.uk/id/eprint/47228

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