Heating system of coil for electromagnetic induction equipment

摘要

(57) Abstract Objective As the coil energy is heated efficiently, thermal seHeat control with simple algorithm without using nsaru. Constitution Supplying fixed electric current I to coil A from fixed electric current power source 2It does, it heats the coil with joule heat. Because of this coilAs temperature rises, resistance R of the coil rises. Resistance RIt changes at the quorum + temperature which is decided with the conductive material of the coil when alsoBecause wire-wound electric current is fixed, it is proportionate with terminal voltage V.As for control section 6 is input the early air temperature which₁ and voltage detector 3 inspectionThe fixed electric current electrification early terminal voltage V_{1 which it} puts out the target which is inputWhen from heating temperature ₂ reaching to target heating temperature _{2, the} target edgeChild voltage V₂, V₁: V₂ =K+1: Simple of a K+2Until it seeks with rugorizumu, terminal voltage becomes V_{2, the} coilTo supply fixed electric current I to A from fixed electric current power source, coil A target warmIt heats to degree ₂.