DocumentCode :
2428264
Title :
EMI filter design for constant power loads in more electric aircraft power systems
Author :
Liu, Xinbo ; Zhou, Yuanjun ; Ma, Shuohan
Author_Institution :
Beijing Univ. of Aeronaut. & Astronaut., Beijing, China
fYear :
2009
fDate :
17-20 May 2009
Firstpage :
2664
Lastpage :
2668
Abstract :
Most of power electronic converter loads and motor loads, in advanced aircraft power systems, behave as constant power loads. To attenuate the switching noise of these loads, EMI filters are needed at the input terminals. The purpose of this paper is to introduce a novel design method of double LC filters for high power constant power loads in more electric aircraft power systems. This method can guarantee the overall systems stability during large disturbances, and simultaneously, it can also meet the standards of noise attenuation. The method is based on mixed potential theory, the existence of equilibrium points and three frequency points attenuation method. The proposed design method solves the limitation of existing filter design methods, which either ignore the stability problems of constant power loads, or can just ensure system stability during small disturbances. A design example is presented in this paper, and simulation results and experimental results verify the design method.
Keywords :
aircraft power systems; electromagnetic interference; power convertors; power filters; EMI filter design; constant power load; double LC filter; electric aircraft power systems; frequency point attenuation method; mixed potential theory; motor load; noise attenuation; power electronic converter load; switching noise; systems stability; Aerospace electronics; Aircraft; Attenuation; Design methodology; Electromagnetic interference; Frequency; Power electronics; Power filters; Power system stability; Power systems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3556-2
Electronic_ISBN :
978-1-4244-3557-9
Type :
conf
DOI :
10.1109/IPEMC.2009.5157858
Filename :
5157858
Link To Document :
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