Temperature Influence on Electrical Signals in Induction Systems

Abstract

This paper examines the impact of temperature on electrical signals in induction system with heated workpiece. Induction systems stand out as highly efficient methods of heating, primarily due to their ability to precisely concentrate energy into the material being heated, thus selectively heating specific parts. The paper presents a numerical model developed using ANSYS APDL software, which elucidates the basic aspects of how temperature affects the material parameters of the heated workpiece and the induction system, particularly the frequency converter circuit. The influence of temperature on electrical signals was further substantiated through experiments with steel typically used for induction surface hardening. The insights gained are especially valuable in the context of induction systems, where understanding the material's temperature impact is critical for processes like induction surface hardening, tempering, or induction soldering.