Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications |
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Authors: | Tao YANG Serhiy BOZHKO Patrick WHEELER Shaoping WANG Shuai WU |
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Institution: | 1. Department of Electrical and Electronic Engineering, University of Nottingham, Nottingham NG72RD, UK;2. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100083, China |
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Abstract: | The Auto-Transformer Rectifier Unit (ATRU) is one preferred solution for high-power AC/DC power conversion in aircraft. This is mainly due to its simple structure, high reliability and reduced kVA ratings. Indeed, the ATRU has become a preferred AC/DC solution to supply power to the electric environment control system on-board future aircraft. In this paper, a general modelling method for ATRUs is introduced. The developed model is based on the fact that the DC voltage and current are strongly related to the voltage and current vectors at the AC terminals of ATRUs. In this paper, we carry on our research in modelling symmetric 18-pulse ATRUs and develop a generic modelling technique. The developed generic model can study not only symmetric but also asymmetric ATRUs. An 18-pulse asymmetric ATRU is used to demonstrate the accuracy and efficiency of the developed model by comparing with corresponding detailed switching SABER models provided by our industrial partner. The functional models also allow accelerated and accurate simulations and thus enable whole-scale more-electric aircraft electrical power system studies in the future. |
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Keywords: | Asymmetric transformer Functional modelling More-Electric Aircraft Multi-pulse rectifier Transformer rectifier unit |
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