摘要
介绍采用ＩＧＢＴ组成的１００ｋｗ２０ｋＨｚ超音频感应加热电源。该电源采用锁相分频式触发器作整流用晶闸管触发，并采用负载串联谐振式电压型逆变器，利用锁相技术将逆变器的工作频率锁定于槽路的固有谐振频率，使得本机能始终运行于负载功率因数为１的状态。
This paper introduces simply a 100 kW 20 kHz supersonic frequency induction heating power supply using IGBT modules. In the Power supply, a trigger of phaselocked and frequency-divided type is applied, to fire rectifying thyristors and the series resonance circuits is adopted in the inverter, that the operation frequency of inverter is locked onto resonance frequency of tank circuit by using phase-locked technique. So, load Power factor can be always kept to 1 during running.
出处
《工业加热》
CAS
1996年第2期47-49,51,共4页
Industrial Heating
关键词
感应加热
电源
IGBT
超音频
induction heating,Power supply,IGBT,supersonic frequency
