Functional Modeling of 18-Pulse Autotransformer Rectifier Units for Aircraft Applications

Paper #:
  • 2015-01-2412

Published:
  • 2015-09-15
DOI:
  • 10.4271/2015-01-2412
Citation:
Yang, T., Bozhko, S., and Asher, G., "Functional Modeling of 18-Pulse Autotransformer Rectifier Units for Aircraft Applications," SAE Technical Paper 2015-01-2412, 2015, doi:10.4271/2015-01-2412.
Pages:
11
Abstract:
This paper aims to develop a general functional model of multi-pulse Auto-Transformer Rectifier Units (ATRUs) for More-Electric Aircraft (MEA) applications. The ATRU is seen as the most reliable way readily to be applied in the MEA. Interestingly, there is no model of ATRUs suitable for unbalanced or faulty conditions at the moment. This paper is aimed to fill this gap and develop functional models suitable for both balanced and unbalanced conditions. Using the fact that the DC voltage and current are strongly related to the voltage and current vectors at the AC terminals of ATRUs, a generic functional model has been developed for both symmetric and asymmetric ATRUs. The developed functional models are validated through simulation and experiment. The efficiency of the developed model is also demonstrated by comparing with corresponding detailed switching models. The developed functional model shows significant improvement of simulation efficiency, especially under balanced conditions.
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