This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Power Dissipation Optimization Process in Aircraft Secondary Power Distribution Systems
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 17, 2013 by SAE International in United States
Annotation ability available
In a more electric aircraft, with strong demand for numerous independently controlled AC and DC power utilities, a new concept of secondary power distribution system has emerged. Based on common core software applications, local area network, and electronic modules with Solid State Power Controllers (SSPC), secondary power distribution system becomes a network of independent Power Distribution Units (PDU), installed in various locations throughout aircraft fuselage. This new decentralized concept has many benefits, including wiring weight reduction, electronic over-current and arc fault protection, and software controlled circuit breakers status and indication.
An attempt to optimize allocation of SSPCs to aircraft electric utilities and the number of electronic Power Modules in Power Distribution Units has become a more complex problem. Each Power Distribution Unit contains several Power Electronics modules, where each module has its own power dissipation limit. It is known that the power dissipation characteristics of an SSPC are a function of ambient temperature and nominal load current. Although, Power Distribution Units are located inside the aircraft pressurized vessel, ambient temperature can vary in a wide range, while nominal current loads typically depend on specific phase of flight and aircraft configuration. This article presents a power analysis numeric algorithm, which is used to determine total power dissipation for each AC or DC type electronic Power Module, and total power consumption for entire Power Distribution Unit in all aircraft configuration conditions, across the entire operating temperature range.
In aircraft secondary power distribution system with multiple Power Distribution Units, the power analysis method presented herein becomes a critical part of the iterative aircraft power optimization process to establish interface definition between SSPC channels and aircraft electrical loads.
CitationNovakovic, N. and Manojlovic, M., "Power Dissipation Optimization Process in Aircraft Secondary Power Distribution Systems," SAE Technical Paper 2013-01-2275, 2013, https://doi.org/10.4271/2013-01-2275.
- Sattar Abdus Power MOSFET Basics, IXAN0061 IXYS Corporation
- Graovac Dusan Dr. , Pϋrschel Marco , Kiep Andreas MOSFET Power Losses Calculation Using the Data-Sheet Parameters Application Note, V 1 1 July 2006 INFINEON
- Tofig et al. Multichannel Power Distribution System United States Patent, Patent Number 5615105 March 25 1997
- 28 VDC Solid-State Power Controllers PR 21000 datasheet Data Device Corporation
- Izquierdo D. , Azcona R. , del Cerro F. J López , Fernández C. , Insenser J. Electrical Power Distribution Architecture for All Electric Aircraft 27 th International Congress of the Aeronautical Science ICAS 2010
- Programmable DC Solid State Power Control Module Technical Data Datasheet 5186 Rev -, SENSITRON Semiconductor
- Xia Xiuxian Dynamic Power Distribution Management for All Electric Aircraft MSc Research Thesis CRANFIELD University, School of Engineering February 2011
- Feng Xiaohu SIC Based Solid State Power Controller Doctoral Dissertations University of Kentucky Graduate School 2007
- Proli Dave Overcoming Power Challenges With Power Distribution Units Power Electronics Technology May 31 2012 www.powerelectronics.com