| Abstract |
This paper presents the analysis and proposed solution of a harmonic instability problem in a casting plant. Current harmonics, qenerated by the rectifier of a coreless induction furnace, cause disturbances in a channel induction furnace (CIF) circuit. A system analysis has been done, based on a model developed for the system, through digital simulation of a dedicated program. The results were further compared to the measurements obtained from the plant. A simple and economic solution is proposed consisting in the inclusion of inductors in the capacitive branches of the channel induction furnace circuit. When this solution was implemented, system behavior and measurements showed that the solution was effective. |
