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Bishwajit Saha,Ki-Young Suh,Hyun Woo Lee,Mutsuo Nakaoka 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.10
This paper presents a new ZVS-PWM high frequency inverter. The ZVS operation is achieved in the whole load range by using a simple auxiliary reverse blocking switch in parallel with series resonant capacitor. The operating principle and the operating characteristics of the new high frequency circuit treated here are illustrated and evaluated on the basis of simulation results. It was examined that the complete soft switching operation can be achieved even for low power setting ranges by introducing the high frequency dual duty cycle control scheme. In the proposed high frequency inverter treated here, the dual mode pulse modulation control strategy of the asymmetrical PWM in the higher power setting ranges and the lower power setting ones, the output power of this high frequency inverter could introduce in order to extend soft switching operation ranges. Dual duty cycle is used to provide a wide range of output power regulation that is important in many high frequency inverter applications. It is more suitable for induction heating applications the operation and control principle of the proposed high frequency inverter are described and verified through simulated results.
Bishwajit Saha,Kang Hoon Koh,Soon Kurl Kwon,Hyun Woo Lee,Mutsuo Nakaoka 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
This paper presents a novel soft-switching PWM utility frequency AC to high frequency AC power conversion circuit incorporating boost-half-bridge inverter topology, which is more suitable and acceptable for cost effective consumer induction heating applications. The operating principle and the operation modes are presented using the switching mode and the operating voltage and current waveforms. The performances of this high-frequency inverter using the latest IGBTs are illustrated, which includes high frequency power regulation and actual efficiency characteristics based on zero voltage soft switching (ZVS) operation ranges and the power dissipation as compared with those of the previously developed high-frequency inverter. In addition, a dual mode control scheme of this high frequency inverter based on asymmetrical pulse width modulation (PWM) and pulse density modulation (PDM) control scheme is discussed in this paper in order to extend the soft switching operation ranges and to improve the power conversion efficiency at the low power settings. The power converter practical effectiveness is substantially proved based on experimental results from practical design example.
Bishwajit Saha,Ki-Young Suh,Soon-Kurl Kwon,Tomokazu Mishima,Mutsuo Nakaoka 전력전자학회 2007 JOURNAL OF POWER ELECTRONICS Vol.7 No.2
This paper presents a new ZCS-PWM high frequency inverter. Zero current switching operation is achieved in the whole load range by using a simple auxiliary reverse blocking switch in parallel with series resonant capacitor. Dual duty cycle control scheme is used to provide a wide range of high frequency AC output power regulation that is important in many high frequency inverter applications. It found that a complete soft switching operation can be achieved even for low power setting ranges by introducing high-frequency dual duty cycle control scheme. The proposed high frequency inverter is more suitable for consumer induction heating (IH) applications. The operation and control principle of the proposed high frequency inverter are described and verified through simulated results.
Saha, Bishwajit,Suh, Ki-Young,Kwon, Soon-Kurl,Mishima, Tomokazu,Nakaoka, Mutsuo The Korean Institute of Power Electronics 2007 JOURNAL OF POWER ELECTRONICS Vol.7 No.2
This paper presents a new ZCS-PWM high frequency inverter. Zero current switching operation is achieved in the whole load range by using a simple auxiliary reverse blocking switch in parallel with series resonant capacitor. Dual duty cycle control scheme is used to provide a wide range of high frequency AC output power regulation that is important in many high frequency inverter applications. It found that a complete soft switching operation can be achieved even for low power setting ranges by introducing high-frequency dual duty cycle control scheme. The proposed high frequency inverter is more suitable for consumer induction heating(IH) applications. The operation and control principle of the proposed high frequency inverter are described and verified through simulated results.
Bishwajit Saha,Ki-Young Suh,Hyun Woo Lee,Mutsuo Nakaoka 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
This paper presents a new ZVS-PWM high frequency inverter with two duty cycle control scheme. Its ZVS operation can be achieved in the whole load setting ranges by using a simple auxiliary reverse blocking switch in parallel with the series compensated resonant capacitor. The operating principle and the operating characteristics of the high frequency inverter circuit treated here were illustrated and evaluated on the basis of simulation results. It is examined that the complete soft switching operation can be achieved even for low power setting by introducing the dual duty cycle control scheme. In the proposed high frequency inverter, the dual mode pulse modulation control strategy of the asymmetrical PWM in the higher power setting and the lower power setting, the output power of this high frequency inverter could introduce in order to extend soft switching operation ranges. A new dual duty cycle PWM is used to provide a wide output power regulation. It is designed for induction heating applications the operation and control principle of the proposed high frequency inverter are described and verified through simulated results.
Bishwajit Saha,Khairy Fathy,Soon Kurl Kwon,Hyun Woo Lee,Mutsuo Nakaoka 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
In this paper, a novel type of auxiliary active snubbing circuit assisted quasi-resonant soft-switching pulse width modulation inverter is proposed for consumer induction heating equipments. The operation principle of this high frequency inverter is described using switching modes and equivalent circuits. This newly developed series resonant high frequency inverter can regulate its high frequency output AC power under a principle of constant frequency active edge resonant soft-switching commutation by asymmetrical PWM control system. The high frequency power regulation and actual power conversion efficiency characteristics of consumer induction heating (IH) products using the proposed soft-switching pulse width modulation (PWM) series load resonant high frequency inverter evaluated. The practical effectiveness and operating performance of high frequency inverter are discussion on the basis of simulation and experimental results as compared with the conventional soft-switching high frequency Inverter.
Bishwajit Saha,Hun Ho Kim,Ho Dong Han,Soon Kurl Kwon 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.4
In this paper, a novel type of auxiliary active snubbingcircuit assisted quasi-resonant soft-switching pulse width modulation inverter is proposed for consumer induction heating equipments. The operation principle of this high frequency inverter is described using switching modes and equivalent circuits. This newly developed series resonant high frequency inverter can regulate its high frequency output AC power under a principle of constant frequency active edge resonant soft- switching commutation by asymmetrical PWM control system. The high frequency power regulation and actual power conversion efficiency characteristics of consumer induction heating (IH) products using the proposed soft-switching pulse width modulation (PWM) series load resonant high frequency inverter evaluated. The practical effectiveness and operating performance of high frequency inverter are discussion on the basis of simulation and experimental results as compared with the conventional soft-switching high frequency inverter.
Bishwajit Saha,Soon Kurl Kwon,Hee Seog Koh,Hyun Woo Lee,Mutsuo Nakaoka 한국조명·전기설비학회 2006 한국조명·전기설비학회 학술대회논문집 Vol.2006 No.5월
This paper presents a novel soft-switching PWM utility frequency AC to high frequency AC power conversion circuit incorporating boost-half-bridge inverter topology, which is more suitable and acceptable for cost effective consumer induction heating applications. The operating principle and the operation modes are presented using the switching mode and the operating voltage and current waveforms. The performances of this high-frequency inverter using the latest IGBTs are illustrated, which includes high frequency power regulation and actual efficiency characteristics based on zero voltage soft switching (ZVS) operation ranges and the power dissipation as compared with those of the previously developed highfrequency inverter. In addition, a dual mode control scheme of this high frequency inverter based on asymmetrical pulse width modulation (PWM) and pulse density modulation (PDM) control scheme is discussed in this paper in order to extend the soft switching operation ranges and to improve the power conversion efficiency at the low power settings. The power converter practical effectiveness is substantially proved based on experimental results from practical design example.