This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Overview of Multiphase Power Converters for Aerospace Applications
Technical Paper
2008-01-2878
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Power Systems Conference
Language:
English
Abstract
1
Aircraft electrical power is generated in the form of three-phase alternating current. Most electrical loads require DC power to operate; therefore the conversion from AC to DC power is required. The direct rectification of 3-phase AC power into DC power is simple and straightforward; however, it creates unacceptable levels of current distortion. Multiphase power conversion is one of several technologies capable of AC to DC power conversion with low distortion levels that meet aerospace power quality standards.
A typical autotransformer based multiphase converter contains two major functional blocks: a multiphase autotransformer and rectifier. Autotransformer rectifier units (ATRUs) have a low part count, and are highly reliable. There are only a few low frequency switching components with this topology, so EMI emissions are relatively low when compared to high frequency switching techniques.
Where voltage regulation is not critical, multiphase converters offer a reliable, low weight, and low cost solution meeting demands of today's aerospace application needs.
This paper reviews the principles of multiphase power conversion technology. The following topics are covered in detail.
- 12-pulse, 18-pulse, and 30-pulse converters
- Current harmonic spectrums and filtering
- The effects of leakage inductance and power source phase sequence on power quality
- Trade offs between topology selections, performance, and converter weight
Examples of converter modeling and performance data from selected designs are included in this paper.
Recommended Content
Technical Paper | F-15 Environment Control System Improvements |
Aerospace Standard | Gas Turbine Engine Inlet Flow Distortion Guidelines |
Technical Paper | Developing Analysis for Large Displacement Stability for Aircraft Electrical Power Systems |
Authors
Topic
Citation
Furmanczyk, K. and Stefanich, M., "Overview of Multiphase Power Converters for Aerospace Applications," SAE Technical Paper 2008-01-2878, 2008, https://doi.org/10.4271/2008-01-2878.Also In
References
- Matheson E. Karimi K. “Power Quality Specification Development for more ELECTRIC Airplane Architecture” SAE 2002 Power System Conference, Paper 2002-01-3206
- Environmental Conditions and Test Procedures for Airborne Equipment
- Furmanczyk K. Stefanich M. “Demonstration of Very High Power Airborne AC to DC Converter” SAE 2004 Power System Conference, Paper 2004-01-3210
- Traver J. “A Multi-Phase Transformer for Shipboard Electronics Systems” Powertechnics Magazine December 1990
- Furmanczyk K. Stefanich M. “Power Conversion Technologies for Reducing Harmonics on the More Electric Aircraft” SAE 2006 Power System Conference, Paper 06PSC-27
- Hammond P. W. “Autotransformer” April 8 1997