Abstracf--This paper presents a new analytical model for high-torque and low-speed transverse flux machines with flux collecting permanent magnet type. The model is developed based on approximating the permeance in the air gap between rotor and stator using quasi-flux tubes with boundaries determined by straight lines and semicircular segments. Three kinds of produced torques are achieved analytically and the results are compared to the three dimensional finite element simulation results.

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In this contribution, a design procedure that is applicable to many kinds of wireless or contactless energy transfer systems is proposed. The design procedure is limited to near field wireless energy transfer systems in resonant operation. For this purpose, the input impedance and voltage transfer function of different natural frequencies are calculated analytically, and moreover, the behavior of the system is described. Following three issues lead to a readily applicable design procedure. First, the knowledge of the transfer functions. Secondly, the knowledge of basic magnetic properties and lastly, the known influence of harmonics according to rectifier and inverter. This design procedure is demonstrated with two hardware setups. Index Terms-Inductive charging, inductive power transmission, power conversion harmonics, resonant inverters, transfer functions.

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