Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2006.04b
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- Pages.226-228
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- 2006
Pulse Density Modulation Controlled Series Load Resonant Zero Current Soft Switching High Frequency Inverter for Induction-Heated Fixing Roller
- Sugimura, Hisayuki (Electric Energy Saving Research Center, Kyungnam University) ;
- Kang, Ju-Sung (Electric Energy Saving Research Center, Kyungnam University) ;
- Saha, Bishwajit (Electric Energy Saving Research Center, Kyungnam University) ;
- Lee, Hyun-Woo (Electric Energy Saving Research Center, Kyungnam University) ;
- Nakaoka, Mutsuo (Electric Energy Saving Research Center, Kyungnam University)
- Published : 2006.04.20
Abstract
This paper presents the two lossless auxiliary inducors-assisted voltage source type half bridge(single ended push pull:SEPP) series resonant high frequency inverter for induction heated fixing roller in copy and printing machines. The simple high-frequency inverter treated here can completely achieve stable zero current soft switching (ZCS) commutation forwide its output power regulation ranges and load variations under constant high frequency pulse density modulation (PDM) scheme. Its transient and steady state operatprinciple is originally described and discussed for a constant high-frequency PDM control strategy under a stable ZCS operation commutation, together with its output effective power regulation charactertics-based on the high frequency PDM strategy. The experimenoperating performances of this voltage source SEPP ZCS-PDM series resonant high frequency inverter using IGBTs are illustrated as compared with computer simulation results and experimenones. Its power losses analysis and actual efficiency are evaluated and discussed on the basis of simulation and experimental results. The feasible effectiveness of this high frequency inverter appliimplemented here is proved from the practical point of view.
Keywords
- Series load resonant circuit topology;
- Lossless inductive snubbers;
- Zero current soft switching;
- discrete pulse density modulation;
- Induction heated roller;
- Cylindrical working coil stator