Design and Implementation of 12 pulse AC to DC Converter in Aircraft for Aerospace Applications
Harshitha G B1, Sujo Oommen2

1Harshitha G B, Department of Electrical and Electronics Engineering, U.B.D.T College of Engineering, Davangere (Karnataka), India.
2Sujo Oommen, Department of Electrical and Electronics Engineering, REVA University, Bengaluru (Karnataka), India.
Manuscript received on 22 May 2019 | Revised Manuscript received on 12 June 2019 | Manuscript Published on 27 June 2019 | PP: 157-162 | Volume-8 Issue-1C May 2019 | Retrieval Number: A10270581C19/2019©BEIESP
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Abstract: Aircraft applications like landing gears, flaps, rudder systems and etc. use actuator systems which includes combination of motor, actuators and auto transformer rectifier units. These systems work at a frequency of 400Hz. These are AC to DC converters used in aircraft’s system to supply constant DC power to the motors which in turn operates actuators. These converters varies with the pulses like 12 pulse, 24 pulse etc. For the systems like this harmonics too play a major role. Less the harmonics more efficient and reliable the system will be. In this paper, a 12 pulse AC to DC converter was designed for 400Hz and 50Hz and the actual model was built for 50Hz of 1KW power. The design of 400Hz and 50Hz was done in MATLAB/Simulink and the prototype was built for 50Hz. Total harmonic distortion was obtained and compared for the two systems. All the results the simulation and the prototype are shown in this paper.
Keywords: Autotransformer Rectifier Unit, Actuators, Aircraft Systems and Total Harmonic Distortion.
Scope of the Article: Low-power design