Biblio

Modular wireless power distribution systems will be commonly used in next generation factories to supply industrial production equipment, in particular automated guided vehicles. This requires the development of a flexible and standardized communication system in between individual Wireless Power Transfer (WPT) modules and production equipment. Therefore, we first derive the requirements for such a system in order to incorporate them in a generic communication concept. This concept focuses on the zero configuration and user-friendly expandability of the system, in which the communication unit is integrated in each WPT module. The paper describes the communication concept and discusses the advantages and disadvantages. The work concludes with an outlook on the practical implementation in a research project.

Inductive contactless energy transfer (CET) systems show a certain oscillating transient behavior of inrush currents on both system sides. This causes current overshoots in the electrical components and has to be considered for the system dimensioning. This paper presents a simple and yet very accurate model, which describes the dynamic behavior of series-series compensated inductive CET systems. This model precisely qualifies the systems current courses for both sides in time domain. Additionally, an analysis in frequency domain allows further knowledge for parameter estimation. Since this model is applicable for purely resistive loads and constant voltage loads with bridge rectifiers, it is very practicable and can be useful for control techniques and narameter estimation.