Study and Analysis of Multi-Pulse Converters in Modern Aircraft Electrical Power System
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Abstract
In this paper a complete model of aircraft electrical system is simulated and analyzed using 24-
pulse techniques in power conversion. The classical aircraft electrical system is described in this
paper. The performance characteristics of 24-pulse converters are studied with different
conditions of operation and the simulated model is tested with different jet engine speed which
yields to different frequencies of operation from 400Hz to 1200 Hz. The simulated system is
described and analyzed in two sections; Generating-Rectifying and Inverting unit. In order to
match the practical condition, different types of load are considered here such as; constant
power load, constant voltage load, constant current load, passive and dynamic load. The
voltage and current for the generator side and inverter side are recorded and the total harmonic
distortion (THD) is calculated for different conditions of operation. The obtained results are
compared with conventional 6-pulse converters which are used in classical aircraft electrical
power system. The proposed system is simulated and analyzed using the PSIM 9 software
package with analysis completed in MATLAB 2010.
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