Title :
The application of soft-switching and frequency synchronization technologies in electromagnetic heater design
Author :
Tao Liu ; Ning Li ; Zhen Lv ; Ce Li ; Long Ju ; Jing-ming Liu
Author_Institution :
Sch. of Mech. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
In order to solve the electromagnetic heaters´ problems of high switching losses and resonant frequency drifting in harsh industrial environments, in this paper, we introduce the soft-switching technology to make the IGBT work on the condition of zero-current turning on and zero-voltage turning off to reduce switching losses, and the IGBT drivers auto adjust the driving frequency to achieve frequency synchronization and adapt the drifting of resonant frequency, in this way, the electromagnetic heaters´ adaptability and thermal efficiency can be improved.
Keywords :
insulated gate bipolar transistors; process heating; synchronisation; zero current switching; zero voltage switching; IGBT drivers; electromagnetic heater; frequency synchronization; harsh industrial environments; resonant frequency drifting; soft-switching; switching losses; zero-current turning; zero-voltage turning; Electromagnetic heating; Frequency synchronization; Insulated gate bipolar transistors; Oscillators; Resonant frequency; Switching loss; electromagnetic heating; frequency drifting; frequency synchronization; soft switching; switching losses;
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2011 6th IEEE Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8754-7
Electronic_ISBN :
pending
DOI :
10.1109/ICIEA.2011.5975807
