Domestic induction cookers are evolving from fixed cooking areas to flexible surfaces in such a way that the pot can be placed at any position. This implies the use of a larger number of reduced-sized inductors, which present a lower efficiency. As a solution to increase the efficiency while maintaining the flexibility, we propose the use of partially overlapped inductors of a larger size. This concept is currently in use in wireless power transfer systems, where the transmitter arrangement consists of several overlapped coils. The aim of this paper is to evaluate this concept applied to domestic induction heating appliances, with special emphasis in analyzing the effects of introducing the multicoil system with dissipative media. Moreover, the losses in the winding will be studied in detail. The system will be prototyped and tested, delivering up to 3.7 kW.

中文翻译：

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由部分重叠的电感器组成的灵活烹饪区


家用电磁炉正在从固定的烹饪区域发展到可以将锅放置在任何位置的灵活表面。这意味着需要使用大量尺寸减小的电感器，从而降低效率。作为在保持灵活性的同时提高效率的解决方案，我们建议使用更大尺寸的部分重叠电感器。这一概念目前用于无线功率传输系统，其中发射器装置由多个重叠线圈组成。本文的目的是评估这一概念在家用感应加热设备中的应用，特别强调分析引入耗散介质多线圈系统的效果。此外，还将详细研究绕组中的损耗。该系统将进行原型设计和测试，输出功率高达 3.7 kW。