EPE Association: EPE 2011 - LS2f: Topic 17: Contactless Power Supply and Power Factor Correction

EPE 2011 - LS2f: Topic 17: Contactless Power Supply and Power Factor Correction
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 17: Power supplies > EPE 2011 - LS2f: Topic 17: Contactless Power Supply and Power Factor Correction

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   A Novel Power Converter Suitable for Contactless Power Distribution with Capacitive Coupling Using Series-Connected Switched-Mode Active Negative Capacitor
By Chiku YUKI, Hirohito FUNATO, Ken-ichi HARAKAWA, Kazuyuki MIURA [View]
[Download]

Abstract: A new concept to realize efficient capacitive-coupling contactless power transfer One-PulseSwitching Active Capacitor (OPSAC) was proposed. OPSAC is composed of single phase inverterwith a dc capacitor. The inverter switches only one time per cycle of supply voltage. The biggestadvantage of the proposed active capacitor is simple operation and inherent stability. In this paper, anew control method of OPSAC is proposed to increase distributed power. In the proposed method,three level operation is employed in the single phase inverter in OPSAC. The effectiveness of theproposed method is verified through simulations.

   Efficiency and hardware comparison of analog control-based and digital control-based 70 W two-stage power factor corrector and DC-DC converters
By Lajos TÖRÖK, Stig MUNK-NIELSEN [View]
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Abstract: A comparison of an analog and a digital controller driven 70 W two-stage power factor corrector converter is presented. Both controllers are operated in average current-mode-control for the PFC and peak current control for the DC-DC converter. Digital controller design and converter modeling is described. Results show that digital control can compete with the analog one in efficiency, PFC and THD.

   Modelling, analysis and optimisation of inductive data transmission systems for integration in contactless power supplies
By Christian RATHGE, Daniel KUERSCHNER [View]
[Download]

Abstract: This paper presents models for the analysis and optimization of combined inductive energy and data transmission systems. The interferences between the energy and data transmission system are modelled and simulated with a multi coupled transformer model by using the circuit simulation software ANSOFT Simplorer. In one model separated coils for the energy and data transmission are used. In another model only one coil for data and energy transfer is used. At the separated coil arrangement by the optimization of the electrical and geometrical coil parameters, the crosstalk between both channels (energy and data) can be minimized, the reliability can be increased and higher data rates can be realized. Without reference to the optimisation of the data transmission system, the reduction of high-frequency harmonics in the energy transmission system (EMC) is necessary. Therefore, the frequency domain analyses of the coupled multi resonance circuits (energy and data channel) is necessary and performed by the AC analyses tool of ANSOFT SIMPLORER ©.

EPE 2011 - LS2f: Topic 17: Contactless Power Supply and Power Factor Correction
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 17: Power supplies > EPE 2011 - LS2f: Topic 17: Contactless Power Supply and Power Factor Correction
	[return to parent folder]

	A Novel Power Converter Suitable for Contactless Power Distribution with Capacitive Coupling Using Series-Connected Switched-Mode Active Negative Capacitor By Chiku YUKI, Hirohito FUNATO, Ken-ichi HARAKAWA, Kazuyuki MIURA	[View] [Download]
Abstract: A new concept to realize efficient capacitive-coupling contactless power transfer One-PulseSwitching Active Capacitor (OPSAC) was proposed. OPSAC is composed of single phase inverterwith a dc capacitor. The inverter switches only one time per cycle of supply voltage. The biggestadvantage of the proposed active capacitor is simple operation and inherent stability. In this paper, anew control method of OPSAC is proposed to increase distributed power. In the proposed method,three level operation is employed in the single phase inverter in OPSAC. The effectiveness of theproposed method is verified through simulations.

	Efficiency and hardware comparison of analog control-based and digital control-based 70 W two-stage power factor corrector and DC-DC converters By Lajos TÖRÖK, Stig MUNK-NIELSEN	[View] [Download]
Abstract: A comparison of an analog and a digital controller driven 70 W two-stage power factor corrector converter is presented. Both controllers are operated in average current-mode-control for the PFC and peak current control for the DC-DC converter. Digital controller design and converter modeling is described. Results show that digital control can compete with the analog one in efficiency, PFC and THD.

	Modelling, analysis and optimisation of inductive data transmission systems for integration in contactless power supplies By Christian RATHGE, Daniel KUERSCHNER	[View] [Download]
Abstract: This paper presents models for the analysis and optimization of combined inductive energy and data transmission systems. The interferences between the energy and data transmission system are modelled and simulated with a multi coupled transformer model by using the circuit simulation software ANSOFT Simplorer. In one model separated coils for the energy and data transmission are used. In another model only one coil for data and energy transfer is used. At the separated coil arrangement by the optimization of the electrical and geometrical coil parameters, the crosstalk between both channels (energy and data) can be minimized, the reliability can be increased and higher data rates can be realized. Without reference to the optimisation of the data transmission system, the reduction of high-frequency harmonics in the energy transmission system (EMC) is necessary. Therefore, the frequency domain analyses of the coupled multi resonance circuits (energy and data channel) is necessary and performed by the AC analyses tool of ANSOFT SIMPLORER ©.