A MOSFET based solid-state power controller for aero DC networks

Author

Feehally, Tom ; Forsyth, A.J.

Author_Institution

Power Conversion Group, Univ. of Manchester, Manchester, UK

fYear

2014

fDate

8-10 April 2014

Firstpage

1

Lastpage

7

Abstract

This paper details the design, construction, and testing of a MOSFET based solid-state power controller rated at 270V, 200A, equivalent to 54kW, with an overload capability of 400A. The power switch is a parallel array of 21 fractionally rated Si MOSFET devices which current share to achieve the overall rating while minimising on-state losses. A transient voltage suppressor is used to dissipate inductive energy and protect the power switching devices. Results analysing onstate losses, thermal performance, inrush current limiting, inductive load breaking, and over-current response times are discussed.

Keywords

aircraft power systems; field effect transistor switches; minimisation; overcurrent protection; power control; power semiconductor switches; voltage control; MOSFET based solid-state power controller; Si MOSFET device; aero DC network; current 200 A; current 400 A; inductive energy dissipation; inductive load breaking; inrush current limiting; on-state loss analysis; on-state loss minimisation; overcurrent response time; parallel array; power 54 kW; power switch; power switching device protection; thermal performance analysis; transient voltage suppressor; voltage 270 V; DC; MOSFET; solid-state switch; transient voltage suppressor;

fLanguage

English

Publisher

iet

Conference_Titel

Power Electronics, Machines and Drives (PEMD 2014), 7th IET International Conference on

Conference_Location

Manchester

Electronic_ISBN

978-1-84919-815-8

Type

conf

DOI

10.1049/cp.2014.0412

Filename

6836859