Title :
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
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;
Conference_Titel :
Power Electronics, Machines and Drives (PEMD 2014), 7th IET International Conference on
Conference_Location :
Manchester
Electronic_ISBN :
978-1-84919-815-8
DOI :
10.1049/cp.2014.0412
