The increasing viability of wide band gap power semiconductors, widespread use of distributed power generations, and rise in power levels of these applications have increased interest and need for medium voltage converters. Understanding the definitions of insulation coordination and their relationship to applications and methodologies used in the test environment allows system engineers to select the correct insulation materials for the design and to calculate the required distances between the conductive surfaces, accessible parts and ground accurately. Although, design guidelines are well established for low voltage systems, there are some deficiencies in understanding and meeting the insulation coordination requirements in medium voltage, medium frequency applications. In this study, an overview on standards for insulation coordination and safety requirements is presented to guide researchers in the development of medium voltage power electronic converters and systems. In addition, an insulation coordination study is performed as a case study for a medium frequency isolated DC/DC converter that provides conversion from a 13.8 kV AC system to a 4.16 kV AC system.

中文翻译：

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审查中压功率转换器的绝缘配合标准

宽带隙功率半导体的生存能力的不断提高，分布式发电的广泛使用以及这些应用的功率水平的提高，引起了人们对中压转换器的兴趣和需求。了解绝缘配合的定义以及它们与测试环境中使用的应用程序和方法之间的关系，可使系统工程师为设计选择正确的绝缘材料，并准确计算出导电表面，可触及零件与地面之间的所需距离。尽管已经为低压系统建立了良好的设计准则，但在理解和满足中压，中频应用中的绝缘配合要求方面仍存在一些不足。在这项研究中，概述了绝缘协调和安全要求的标准，以指导研究人员开发中压功率电子转换器和系统。此外，还针对中频隔离式DC / DC转换器进行了绝缘协调研究，以实现从13.8 kV交流系统到4.16 kV交流系统的转换。