Stability assessment of electric power systems for ‘more electric’ aircraft

Author

Griffo, Antonio ; Wang, Jiabin

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK

fYear

2009

Firstpage

1

Lastpage

10

Abstract

This paper presents a comprehensive assessment of small-signal stability for a ldquomore-electricrdquo aircraft power system consisting of a synchronous variable-frequency generator which supplies several power electronic controlled loads via an 18-pulse autotransformer rectifier unit (ATRU) for AC-DC conversion. Functional models for key power system components and loads are derived. Numerical tools employed for the automatic calculation of linearized equations and operating points are described, and the influence of leading design and operational parameter on system stability is evaluated.

Keywords

AC-DC power convertors; aircraft power systems; autotransformers; power system stability; pulse transformers; rectifying circuits; synchronous generators; 18-pulse autotransformer rectifier unit; AC-DC conversion; linearized equations; more-electric aircraft power system; power electronics; small-signal stability assessment; synchronous variable-frequency generator; Aerospace control; Aerospace electronics; Aircraft; Automatic generation control; Power electronics; Power generation; Power supplies; Power system modeling; Power system stability; Synchronous generators; Aerospace; Converter circuit; Modelling; Simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2009. EPE '09. 13th European Conference on

Conference_Location

Barcelona

Print_ISBN

978-1-4244-4432-8

Electronic_ISBN

978-90-75815-13-9

Type

conf

Filename

5279220