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RISS 인기검색어
- 검색키워드
- 저자 : Sugimura Hisayuki (검색결과 20 건)
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Hisayuki Sugimura,Hideki Omori,Soon-Kurl Kwon,Mutsuo Nakaoka 전력전자학회 2011 ICPE(ISPE)논문집 Vol.2011 No.5
This paper discusses the circuit topologies for simple three-level phase shift ZVS-PWM DC-DC converters in addition to the proposed three-level diode clamped and flying capacitor hybrid phase shift soft switched PWM high frequency link DC-DC converters for industrial gas metal arc welding machines. The arc welding machines for TIG, MIG and MAG require low voltage and large current DC output for high frequency linked DC-DC converters. These three-level type soft switched PWM converter topologies are suitable for some industrial applications mentioned above because of keeping the reduced device voltage capability for wide load ranges and wider soft switching operating ranges as compared to the full bridge converter. This paper is concerned with the comparative three topologies of diode clamping, flying capacitor and diode clamping and flying capacitor hybrid DC-DC converters. In this paper, the circuit operation principles of these three-level soft switched PWM DC-DC converters, soft switching operating ranges and power regulation characteristics are evaluated on the basis of simulations and experiments from a practical point of view.
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Hisayuki Sugimura,Hidekazu Muraoka,Izuo Hirota,Toshiaki Iwai,Hideki Omori,Hyun-Woo Lee,Mutsuo Nakaoka 전력전자학회 2004 ICPE(ISPE)논문집 Vol.- No.-
In this paper, a novel topology of soft switching PWM high frequency AC power conversion conditioning and processing circuit without DC smoothing Capacitor filter link from the voltage grid of commercial utility frequency AC power supply source with 60Hz-100V or 60Hz-200V is proposed and introduced for next generation consumer induction heating (IH) boiler applications as a hot water<br/> producer, steamer and super heated steamer. The operating principle of commercial utility frequency AC (LFAC) to high frequency AC (HFAC) power frequency conversion soft switching circuit defined as high frequency soft switching cycloinverter is described, which can efficiently operate under a principle of zero voltage soft switching and regulate by means of positive and negative alternate asymmetrical PWM synchronized with the commercial utility frequency single phase AC voltage. The dual mode control scheme based on<br/> high frequency PWM and commercial frequency AC voltage PDM for high frequency cycloinverter are discussed in order to extend its soft switching commutation operating range in spite of power regulation ranging from low power to high power setting. This power frequency changer as high frequency cycloinverter is developed originally for the high frequency induction heating boiler in promising consumer<br/> and industrial fluid pipeline systems.<br/> It is verified on the basis of experiment and simulation results of the soft switching high frequency cycloinverter using IGBTs which is more suitable for the business-use IH boiler using new electromagnetic induction heating dual packs fluid heater. Finally, the power regulation characteristics in addition to utility AC side line current harmonic components and power factor characteristics and power conversion efficiency characteristics of this high frequency cycloinverter treated here are evaluated and discussed from an experimental point of view.
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Hisayuki Sugimura,Kenji Yasui,Hideki Omori,Hyun-Woo Lee,Mutsuo Nakaoka 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
At present, the cold cathode fluorescent lamp (CCFL) using mercury lamp has been generally used for liquid crystal backlight source of personal computer and car navigation and so on. This kind of lamp is more excellent on luminance performance and cost. However, the requirements of liquid crystal backlight due to a light source without mercury have been strongly increased from a viewpoint of the actual influence on environmental preservation and environmental recycling. As fluorescent lamp without mercury, Dielectric Barrier Discharge based rare gas fluorescent lamp (DBD-FL) using xenon (Xe) gas has been studied so far. This DBD lamp has no influence on the human body and environmental recycle. Its operating life is long because electrode IS out. In this paper the simulation and experimental results of soft switching high frequency inverter with reverse blocking single switch as a high frequency power supply circuit for DBD-FL using Xe gas are comparatively evaluated and discussed from a practical point of view.
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Hisayuki Sugimura,Ahmad Eid,Hyun-Woo Lee,Mutsuo Nakaoka 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
In this paper, a constant frequency phase shifting PWM controlled voltage source full bridge-type series load resonant high-frequency inverter using the IGBT power modules is presented for innovative consumer electromagnetic induction heating applications such as a hot water producer, steamer and super heated steamer. The full bridge arm side link passive quasi-resonant capacitor snubbers in parallel with the each power semiconductor device and high frequency AC load side linked active edge inductive snubber-assisted series load resonant tank soft switching inverter with a constant frequency phase shifted PWM control scheme is discussed and evaluated on the basis of the simulation and experimental results. It is proved from a practical point of view that the series load resonant and edge resonant hybrid high-frequency soft switching PWM inverter topology, what is called class DE type, including the variable-power variable-frequency (VPVF) regulation function can expand zero voltage soft switching commutation range even under low output power setting ranges, which is more suitable and acceptable for induction heated dual packs fluid heater developed newly for consumer power utilizations. Furthermore, even in the lower output power regulation mode of this high-frequency load resonant tank high frequency inverter circuit it is verified that this inverter can achieve ZVS with the aid of the single auxiliary inductor snubber.
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Hisayuki Sugimura,Hyun-Woo Lee,Sang-Don Kim,Mutsuo Nakaoka 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
This paper presents soft switching zero voltage switching high frequency inverter for rare gas fluorescent lamp using dielectric-barrier discharge phenomenon. The simple high-frequency inverter can completely achieve stable zero voltage soft switching (ZVS) commutation for wide its output power regulation ranges and load variations under its constant high frequency pulse density modulation(PDM) scheme. The experimental operating performances of this high frequency inverter are illustrated as compared with computer simulation results and experimental ones. Its light dimming characteristics due to power regulation scheme are evaluated and discussed on the basis of simulation and experimental results. The feasible effectiveness of this high frequency inverter appliance implemented here is proven from the practical point of view.
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Utility AC Frequency to High Frequency ACPower Conversion Circuit with Soft Switching PWM Strategy
Sugimura Hisayuki,Ahmed Nabil A.,Ahmed Tarek,Lee Hyun-Woo,Nakaoka Mutsuo The Korean Institute of Electrical Engineers 2005 KIEE International Transactions on Electrical Mach Vol.b5 No.2
In this paper, a DC smoothing filterless soft switching pulse modulated high frequency AC power conversion circuit connected to utility. frequency AC power source is proposed for consumer induction heating hot water producer, steamer and super heated steamer. The operating principle of DC link filterless utility frequency AC-high frequency AC (HF AC) power conversion circuit defined as high frequency cycloinverter is described, which can operate under a principle of ZVS/AVT and power regulation based on alternate asymmetrical PWM in synchronization with the utility frequency single phase AC positive or negative half wave voltage. The dual mode modulation control scheme based on high frequency PWM and commercial frequency AC voltage PDM for the proposed high frequency cycloinverter are discussed to enlarge its soft switching commutation operating range for wide HF AC power regulation. This high frequency cycloinverter is developed for high frequency IH Dual Packs Heater (DPH) type boiler used in consumer and industrial fluid pipeline systems. Based on the experiment and simulation results, this high frequency cycloinverter is proved to be suitable for the consumer use IH-DPH boiler and hot water producers. The cycloinverter power regulation and power conversion efficiency characteristics are evaluated and discussed.
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Hisayuki Sugimura,Bishwajit Saha,Sang Pil Mun,Eiji Hiraki,Hideki Omori,Mutsuo Nakaoka 전력전자학회 2007 ICPE(ISPE)논문집 Vol.- No.-
The oscillation voltage (Ebm) is an important parameter of the characteristic constant of a high power microwave generator. When Ebm could be made high, it serves so as to improve the power conversion efficiency of a magnetron. Thus, the newly developed magnetron with 7% higher oscillation cut-off voltage than the present conventional one is manufactured by Matsushita Electric Industrial Co. Ltd, In addition to this, the utility AC power line current reduced harmonic type direct inverter AC-DC power converter suitable and acceptable for driving this magnetron is proposed in this paper. This direct high frequency inverter type soft switching PWM AC-DC converter has the voltage-boost function based on active clamp scheme with soft switching pulse modulation strategy topology. This paper describes a novel type active clamp AC-DC power converter circuit defined as direct high frequency inverter and the switching operation of this power converter is described and discussed on the basis of simulation and experimental results. The operating characteristics of this soft switching direct high frequency inverter type AC-DC power converter using IGBTs that incorporates the harmonic current improvement as well as power factor correction are evaluated and discussed from a practical point of view as compared with the conventional AC-DC power converter.
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Hisayuki Sugimura,Hidekazu Muraoka,Tarek Ahmed,Srawouth Chandhaket,Eiji Hiraki,Mutsuo Nakaoka,Hyun-Woo Lee 전력전자학회 2004 JOURNAL OF POWER ELECTRONICS Vol.4 No.3
In this paper, a constant frequency phase shifting PWM-controlled voltage source full bridge-type series load resonant high-frequency inverter using the 4 11 generation [GBT power modules is presented for innovative consumer electromagnetic induction heating applications, such as a hot water producer. steamer and super heated steamer. The bridge arm side link passive capacitive snubbers in parallel with each power semiconductor device and AC load side linked active edge inductivc snubber-assisted series load resonant tank soft switching inverter with a constant frequency phase shifted PWM control scheme is evaluated and discussed on the basis of the simulation and experimental results. It is proved from a practical point of view that the series load resonant and edge resonant hybrid high-frequency inverter topology. what is called, DE class type, including the variable-power variable-frequency regulation function can expand zero voltage soft switching commutation area even under low output power setting ranges, which is more suitable and acceptable for newly developed induction heated dual pack fluid heaters. Furthermore. even the lower output power regulation mode of this high-frequency load resonant tank inverter circuit is verified so that this inverter can achieve ZVS with the aid of the single auxiliary inductor snubber.
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Hisayuki Sugimura,Soon-Kurl Kwon,Hyun Woo Lee,Mutsuo Nakaoka 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
This paper presents a novel type soft switching PWM power frequency AC-AC converter using bidirectional active switches or single phase utility frequency AC-high frequency AC matrix converter. This converter can directly convert utility frequency AC (UFAC, 50Hz/60Hz) power to high frequency AC (HFAC) power ranging more than 20kHz up to 100kHz. A novel soft switching PWM prototype of high frequency multi-resonant PWM controlled UFAC-HFAC matrix converter using antiparallel onechip reverse blocking IGBTs manufactured by IXYS corp. is based on the soft switching resonance with asymmetrical duty cycle PWM strategy. This single phase UFAC-HFAC matrix converter has some remarkable features as electrolytic capacitor DC busline linkless topology, unity power factor correction and sinewave line current shaping, simple configuration with minimum circuit components, high efficiency and downsizing. This series load resonant UFAC-HFAC matrix converter, incorporating bidirectional active power switches is developed and implemented for high efficiency consumer induction heated food cooking appliances in home uses and business-uses. Its operating performances as soft switching operating ranges and high frequency effective power regulation characteristics are illustrated and discussed on the basis of simulation and experimental results.
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