EPE Association: EPE 2011 - LS7f: Topic 13: Energy Efficiency, Energy Savings Issues

EPE 2011 - LS7f: Topic 13: Energy Efficiency, Energy Savings Issues
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 13: Energy efficiency; energy saving issues in system components > EPE 2011 - LS7f: Topic 13: Energy Efficiency, Energy Savings Issues

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   A Method for Controlling Three-Phase-Laminated-Core Variable Inductor Applied to Reactive Power Compensator by Voltage Reversible Chopper
By Yoshiaki ABE, Kenji NAKAMURA, Hiroki GOTO, Takashi OOHINATA, Kenji ARIMATSU, Kunio SAKAMOTO, Osamu ICHINOKURA [View]
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Abstract: Variable inductors are able to control effective inductance of secondary ac windings by dc excitation from primary windings. Hence, the variable inductors can be applied as a reactive power compensator in electric power systems. In previous paper, a novel three-phase-laminated-core variable inductor has been proposed. It has three-phase secondary ac windings together in one laminated-core to reduce the size and weight in comparison with the other single-phase ones. This paper presents a MATLAB-based dynamic analysis model of the three-phase-laminated-core variable inductor, and examines the performance of the variable inductor as a reactive power compensator by using the proposed MATLAB model.

   A novel method for collective dimming of high intensity discharge lamps
By Miaomiao CHENG, Bin Mustapha ILHAMI, Ryuichi SHIMADA [View]
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Abstract: High intensity discharge (HID) lamps take up a large percentage of the power consumption in the lighting. It is common to operate the HID lamps in 100\% lighting state due to the difficulty of dimming control. This paper proposes a simple dimming method for them and manages to dim the lamp group collectively. A frequency control device is inserted between the power supply and the HID magnetic ballast. Because of the use of inductor in the magnetic ballast, its impedance increases with the frequency. Therefore, by changing the output frequency, the current flowing through HID lamps can be decreased/increased with the voltage being kept constant. Also, the generated waveforms of the frequency control device is discussed in this paper. Both simulation and experimental results are given to prove the dimming effect

   Design Optimization Methodology for Power Converters based on Global Energy Requirement Criteria. Application to a DC-DC Flyback Structure
By Cédric JAOUEN, Bernard MULTON, Franck BARRUEL [View]
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Abstract: This paper discusses a design methodology for power electronic converters according to the Global Energy Requirement (GER) criterion, i.e. the primary energy consumption over their entire life cycle. For given specifications of the converter, each power component of a self-oscillating flyback converter and the main control parameters are optimized using scaling laws for given technologies. Models linking sizes of components, loss parameters and embodied energy parameters are presented. Finally a comparison is realized between a GER-designed converters and a classical one (designed from thermal criteria) which concludes to an improvement of efficiency for a given consumption profile.

EPE 2011 - LS7f: Topic 13: Energy Efficiency, Energy Savings Issues
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 13: Energy efficiency; energy saving issues in system components > EPE 2011 - LS7f: Topic 13: Energy Efficiency, Energy Savings Issues
	[return to parent folder]

	A Method for Controlling Three-Phase-Laminated-Core Variable Inductor Applied to Reactive Power Compensator by Voltage Reversible Chopper By Yoshiaki ABE, Kenji NAKAMURA, Hiroki GOTO, Takashi OOHINATA, Kenji ARIMATSU, Kunio SAKAMOTO, Osamu ICHINOKURA	[View] [Download]
Abstract: Variable inductors are able to control effective inductance of secondary ac windings by dc excitation from primary windings. Hence, the variable inductors can be applied as a reactive power compensator in electric power systems. In previous paper, a novel three-phase-laminated-core variable inductor has been proposed. It has three-phase secondary ac windings together in one laminated-core to reduce the size and weight in comparison with the other single-phase ones. This paper presents a MATLAB-based dynamic analysis model of the three-phase-laminated-core variable inductor, and examines the performance of the variable inductor as a reactive power compensator by using the proposed MATLAB model.

	A novel method for collective dimming of high intensity discharge lamps By Miaomiao CHENG, Bin Mustapha ILHAMI, Ryuichi SHIMADA	[View] [Download]
Abstract: High intensity discharge (HID) lamps take up a large percentage of the power consumption in the lighting. It is common to operate the HID lamps in 100\% lighting state due to the difficulty of dimming control. This paper proposes a simple dimming method for them and manages to dim the lamp group collectively. A frequency control device is inserted between the power supply and the HID magnetic ballast. Because of the use of inductor in the magnetic ballast, its impedance increases with the frequency. Therefore, by changing the output frequency, the current flowing through HID lamps can be decreased/increased with the voltage being kept constant. Also, the generated waveforms of the frequency control device is discussed in this paper. Both simulation and experimental results are given to prove the dimming effect

	Design Optimization Methodology for Power Converters based on Global Energy Requirement Criteria. Application to a DC-DC Flyback Structure By Cédric JAOUEN, Bernard MULTON, Franck BARRUEL	[View] [Download]
Abstract: This paper discusses a design methodology for power electronic converters according to the Global Energy Requirement (GER) criterion, i.e. the primary energy consumption over their entire life cycle. For given specifications of the converter, each power component of a self-oscillating flyback converter and the main control parameters are optimized using scaling laws for given technologies. Models linking sizes of components, loss parameters and embodied energy parameters are presented. Finally a comparison is realized between a GER-designed converters and a classical one (designed from thermal criteria) which concludes to an improvement of efficiency for a given consumption profile.