Virtual experimentation for EMC parameters extraction : case of the parasitic capacitance in wound structures

Abstract

A new method for analyzing the impact of materials and architectures of Power Mechatronic assemblies on the parasitic electromagnetic couplings is presented. In this paper, the stray capacitance of a single-layer iron-core solenoid is analyzed using a PEEC-based 3D method. The results are compared to an analytical calculation of turn-to-turn and turn-to-core capacitance to validate the proposed method. The solenoid is subject to an EM field calculation in order to extract the coupling coefficients between different turns and the core of the inductor. The coupling coefficient matrix is extracted and imported into a Netlist circuit formalism for further analysis and comparison with the analytical calculations. These first derived results will be helpful in the modeling works for solving EMC issues such as transient over-voltage in wound structures of power Mechatronic systems. This is a first step of The Virtual Experimentation Method for future analyzing and designing of compatible Mechatronic subsystems, by integrating materials and architecture parameters into the design process.