Simulación de un sistema de control de temperatura bajo el principio de calentamiento por inducción electromagnética.

Abstract

Electromagnetic induction heating is a process that uses alterning current at high frequencies to heat a ferromagnetic material (preferably) or current conductor material, it is generally used in processes that use very high temperatures, for example to melt metals or for heat treatments for this reason, we want to simulate this type of system and carry out the control in an right way for a low temperature range compared to general use. For purpose software such as Matlab, Simulink and Comsol finite element simulation software were used. To make the simulation as close to reality, IGBT modules, a rectifier bridge, a Buck converter and a pulse generator were simulated. For the simulation of the system, the voltage that comes from the home network of 120Vac and a resonance frequency of 30khz was taken as a reference, to keep a constant temperature at a fixed point (between 25 ° C and 80 ° C) and with a range maximum variation of ± 5 ° C by means of a PID controller. With Comsol finite element modeling software, simulations were made with different materials taking into account the physical properties of each one and the one that showed the best behavior when exposed to electromagnetic induction was selected.