In induction heating applications, active and passive power components play important roles for proper functioning of the power controllers. For suitability study, the characterization of active power components is well defined and documented. Characterization of capacitors is also well defined. They are commercially available as well. High-frequency power magnetic components, such as transformers and inductors, are not readily available. For better power density and reliable operation of controllers, their qualitative evaluation is necessary. The parametric set to define the suitability of finished high-frequency magnetic components is large and wide, have multiple and complex heat sources. For input materials, multiple choices are available. Two main ingredients in high-frequency magnetic components are the magnetic core and litz-wire conductor. This article, using inherent features of ZVZCS SRI topology, explores practical methods to validate the optimal design of the high-frequency power transformer for induction heating applications. The method is able to evaluate the usable current density of the litz wire conductors as well as the upper limit of usable flux density of nanocrystalline cores.

中文翻译：

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ZVZCS SRI 指导最佳使用铜和磁芯用于感应加热风冷纳米晶变压器

在感应加热应用中，有源和无源功率元件对于功率控制器的正常运行起着重要作用。对于适用性研究，有功功率组件的特性得到了很好的定义和记录。电容器的特性也得到了很好的定义。它们也可商购获得。高频功率磁性元件，如变压器和电感器，并不容易获得。为了获得更好的功率密度和控制器的可靠运行，必须对其进行定性评估。定义成品高频磁性元件适用性的参数集大而广，热源多而复杂。对于输入材料，有多种选择。高频磁性元件的两个主要成分是磁芯和绞合线导体。本文利用 ZVZCS SRI 拓扑的固有特性，探讨了验证用于感应加热应用的高频电源变压器优化设计的实用方法。该方法能够评估利兹线导体的可用电流密度以及纳米晶芯的可用磁通密度上限。