Multipulse ac/dc rectifiers (MPRs) are widely used in aviation applications due to their rugged structure, cost effective, and high-reliability features. In this article, an overview of the recent advances and trends on the MPR technology, mainly the autoconfigured transformer-based MPRs, and its application in more electric aircrafts is performed. This article covers system topologies, transformer configurations, passive and active harmonic reduction schemes, case study, practical selection and design guidelines, and applications. To fairly evaluate the performances of MPRs with different pulse numbers, necessary simulation studies are carried out under comparable conditions, including power rating, input and output specifications, and transformer configuration. Then, an 18-pulse asymmetric delta-polygon configured prototype is established based on the simulation evaluation and experimental verification is performed. It is expected that this article can provide a broad perspective on MPR technology, and, in particular, highlight the latest emerged technology that significantly promotes the performances of MPRs. More importantly, it is desired that the results obtained in this article can provide an effective selection guideline and design suggestion for researchers and engineers engaged in designing MPRs, especially for aviation applications.

中文翻译：

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自配置多脉冲交直流整流器的评估及其在多电动飞机中的应用


多脉冲交流/直流整流器 (MPR) 因其结构坚固、经济高效和高可靠性等特点而广泛应用于航空应用。本文概述了 MPR 技术的最新进展和趋势，主要是基于自动配置变压器的 MPR 及其在更多电动飞机中的应用。本文涵盖系统拓扑、变压器配置、无源和有源谐波抑制方案、案例研究、实际选择和设计指南以及应用。为了公平地评估不同脉冲数MPR的性能，需要在可比条件下进行必要的仿真研究，包括额定功率、输入和输出规格以及变压器配置。然后，在仿真评估的基础上建立了18脉冲非对称三角多边形结构样机并进行了实验验证。希望本文能够提供有关 MPR 技术的广阔视角，特别是重点介绍可显着提升 MPR 性能的最新出现的技术。更重要的是，希望本文获得的结果能够为从事MPR设计，特别是航空应用的研究人员和工程师提供有效的选择指南和设计建议。