A Study on the Safety Analysis of an Inductive Power Transfer System for Kitchen Appliances

Abstract

This paper presents a detailed analysis of the safety of human bodies in the electromagnetic field generated by inductive power transfer (IPT) systems designed for kitchen appliances. Comparisons of basic and reference limit values of various safety standards are investigated through theoretical circuit analysis and extensive simulation studies. Simulation models of human bodies along with an IPT system for kitchen appliances are established to reveal the effect of the electromagnetic field on the human body. Corresponding experiments are conducted via constructing a configuration of the designed IPT system and simulating the standing position. Both experimental and analytical results indicate that it is easier to fulfill international safety standards by increasing the operating frequency of the IPT system for kitchen appliances, and hence, the safety of human bodies can be effectively improved.

A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective Properties

“…Inductive power transfer (IPT) technology is considered to be a good solution to replace the traditional electrical connection method due to its advantages of security, flexibility, aesthetics and reliability [1]. With the development of technology and the expansion of the application field, an IPT system with multiple transmitting coils has become a research hotspot [2][3][4]. It is mainly used in specific scenarios, such as IPT sharing platforms for electronic devices, dynamic wireless charging for electric vehicles or automated guided vehicles, etc.…”

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

“…It can significantly improve the reliability, convenience, and safety of the electric energy supply and solve the problems of sparks and maintenance difficulties caused by traditional plug-in power transmission modes [ 6 , 7 , 8 ]. WPT technology has broad application prospects in low-power scenarios such as mobile phones [ 9 , 10 ], wearable devices [ 11 , 12 ], implantable medical care [ 13 , 14 , 15 ], and smart home products [ 16 , 17 ], as well as high-power fields such as electric vehicles (EVs) [ 18 , 19 , 20 , 21 , 22 , 23 ], unmanned aerial vehicles (UAVs) [ 24 , 25 ], unmanned underwater vehicles (UUVs) [ 26 , 27 , 28 ], electric ships [ 29 ] and aerospace equipment [ 30 , 31 ]. There is no doubt that WPT technology eliminates the problem of insulation and wire wear due to contact friction and significantly improves the safety and reliability of charging systems.…”