EPE Association: EPE 2017 - DS3m: Contactless Power Supplies

EPE 2017 - DS3m: Contactless Power Supplies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2017 ECCE Europe - Conference > EPE 2017 - Topic 07: Power Supplies > EPE 2017 - DS3m: Contactless Power Supplies

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   A primary side compensator for inductive, contactless energy transfer systems with output power stabilization
By Marcin MARCINEK [View]
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Abstract: In presented paper a technique for the secondary side power stabilisation for contactless energy transfersystems is presented. The original part of this approach is the position where stabilisation is performed.Instead of complicated pickup side modifications all additional circuits are located on the systemstransmitting side.

   Efficiency Improvement of Coaxial Contactless Power Transmission by Multiple Turns of Primary Winding for Electric Railways
By Yoshiyuki YAMAGUCHI [View]
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Abstract: Further efficiency improvement is achieved by the multiple turns of primary winding for air gapped coaxial transformer, aimed at wireless power transmission for railways. The theoretical analysis predicts the higher efficiency by increase of primary winding turns. Theoretical analysis and verification experiments are shown, including 98.9\\% efficiency.

   Electromagnetic stirring power supply system with bidirectional energy flow and its control strategy
By Xinxing XIANG [View]
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Abstract: A control strategy for bidirectional flow of electromagnetic stirring is proposed. The topology structure of the system includes the forward stage PWM converter and the backward stage two-phase three-leg converter, which both can work in the rectifying and inverting status. So bidirectional energy flow can be realized. The control method for the forward stage is the double loop control with ripple correction. The control method for the backward stage is the current tracking control based on PR. The harmonic current caused by the two-order ripple of the DC-side voltage is suppressed. The reliability and dynamic tracking performance of the system is improved. The simulation results verify the correctness of the proposed control strategy.

   Maximum Efficiency Control Scheme and Design Method for Resonant Circuit of Bi-directional Inductive Power Transfer System
By Ryosuke OTA [View]
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Abstract: There is a method for charging a battery of electric vehicles by using bi-directional inductive power transfer (IPT). A system applied with IPT is convenient, safe and maintainable. In previous studies, various control schemes for a bi-directional IPT system have been proposed. However, these control schemes are not practical because the resonant circuit controlled with the control scheme is not optimized in efficiency, or the control scheme is highly complex. In addition, these control schemes have less generality because the appropriate design method of the resonant circuit form the viewpoint in the efficiency is not expressed. Therefore, this paper proposes the design method for the resonant circuit in order to obtain high efficiency, and the maximum efficiency control scheme for the resonant circuit considering the characteristics of an IPT system. The proposed control scheme obtains maximum efficiency easily by controlling the 3 control parameters: the magnitude of the primary-side and secondary-side voltages in the resonant circuit, and the phase between the primary-side and secondary-side voltages of the resonant circuit. In addition, these control scheme and design method are derived from the simple theoretical equations. Eventually, the effectiveness of the proposed design method and control scheme are revealed by the experiments.

   Method of Adjustment and Stabilization of Parameters for Wireless Energy Transfer System
By Ilya GALKIN [View]
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Abstract: The paper presents a technique of parameter stabilization of a wireless, resonance based energy transfer system for maximizing its power. The technique combines tuning of resonant frequency by means of variable capacitance and adjustment of magnetic coupling to maximize power. The paper presents experimental test results on a laboratory prototype of the system.

   Output Power Maximization for Double Layer Heating of Impeller and Container of Mixer
By Keisuke KINTSU [View]
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Abstract: In this paper, the fast heating up impeller and container directly by induction heating is proposed. Simultaneous heating of the impeller and the container leads to the homogeneous and rapid heating for the chemical reaction. To show the feasibility of proposed method, the induction heating of the double layer of the stainless steel plates are investigated. Experimental results show the good feasibility of the simultaneous heating. To know the input power to the impeller, the equivalent coil is used for the measurement. The simple equivalent circuit is proposed and the calculation from it shows good coincidence to the dependency to the SUS plate thickness. Both the experimental results and the calculated results show that there is the optimum thickness of the impeller to maximize the output power. The thickness of the middle plate also affects the performance of the impeller heating. The experimental results show that the thinner is better. Finally, realistic heating experiments show the good temperature rise.

EPE 2017 - DS3m: Contactless Power Supplies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2017 ECCE Europe - Conference > EPE 2017 - Topic 07: Power Supplies > EPE 2017 - DS3m: Contactless Power Supplies
	[return to parent folder]

	A primary side compensator for inductive, contactless energy transfer systems with output power stabilization By Marcin MARCINEK	[View] [Download]
Abstract: In presented paper a technique for the secondary side power stabilisation for contactless energy transfersystems is presented. The original part of this approach is the position where stabilisation is performed.Instead of complicated pickup side modifications all additional circuits are located on the systemstransmitting side.

	Efficiency Improvement of Coaxial Contactless Power Transmission by Multiple Turns of Primary Winding for Electric Railways By Yoshiyuki YAMAGUCHI	[View] [Download]
Abstract: Further efficiency improvement is achieved by the multiple turns of primary winding for air gapped coaxial transformer, aimed at wireless power transmission for railways. The theoretical analysis predicts the higher efficiency by increase of primary winding turns. Theoretical analysis and verification experiments are shown, including 98.9\\% efficiency.

	Electromagnetic stirring power supply system with bidirectional energy flow and its control strategy By Xinxing XIANG	[View] [Download]
Abstract: A control strategy for bidirectional flow of electromagnetic stirring is proposed. The topology structure of the system includes the forward stage PWM converter and the backward stage two-phase three-leg converter, which both can work in the rectifying and inverting status. So bidirectional energy flow can be realized. The control method for the forward stage is the double loop control with ripple correction. The control method for the backward stage is the current tracking control based on PR. The harmonic current caused by the two-order ripple of the DC-side voltage is suppressed. The reliability and dynamic tracking performance of the system is improved. The simulation results verify the correctness of the proposed control strategy.

	Maximum Efficiency Control Scheme and Design Method for Resonant Circuit of Bi-directional Inductive Power Transfer System By Ryosuke OTA	[View] [Download]
Abstract: There is a method for charging a battery of electric vehicles by using bi-directional inductive power transfer (IPT). A system applied with IPT is convenient, safe and maintainable. In previous studies, various control schemes for a bi-directional IPT system have been proposed. However, these control schemes are not practical because the resonant circuit controlled with the control scheme is not optimized in efficiency, or the control scheme is highly complex. In addition, these control schemes have less generality because the appropriate design method of the resonant circuit form the viewpoint in the efficiency is not expressed. Therefore, this paper proposes the design method for the resonant circuit in order to obtain high efficiency, and the maximum efficiency control scheme for the resonant circuit considering the characteristics of an IPT system. The proposed control scheme obtains maximum efficiency easily by controlling the 3 control parameters: the magnitude of the primary-side and secondary-side voltages in the resonant circuit, and the phase between the primary-side and secondary-side voltages of the resonant circuit. In addition, these control scheme and design method are derived from the simple theoretical equations. Eventually, the effectiveness of the proposed design method and control scheme are revealed by the experiments.

	Method of Adjustment and Stabilization of Parameters for Wireless Energy Transfer System By Ilya GALKIN	[View] [Download]
Abstract: The paper presents a technique of parameter stabilization of a wireless, resonance based energy transfer system for maximizing its power. The technique combines tuning of resonant frequency by means of variable capacitance and adjustment of magnetic coupling to maximize power. The paper presents experimental test results on a laboratory prototype of the system.

	Output Power Maximization for Double Layer Heating of Impeller and Container of Mixer By Keisuke KINTSU	[View] [Download]
Abstract: In this paper, the fast heating up impeller and container directly by induction heating is proposed. Simultaneous heating of the impeller and the container leads to the homogeneous and rapid heating for the chemical reaction. To show the feasibility of proposed method, the induction heating of the double layer of the stainless steel plates are investigated. Experimental results show the good feasibility of the simultaneous heating. To know the input power to the impeller, the equivalent coil is used for the measurement. The simple equivalent circuit is proposed and the calculation from it shows good coincidence to the dependency to the SUS plate thickness. Both the experimental results and the calculated results show that there is the optimum thickness of the impeller to maximize the output power. The thickness of the middle plate also affects the performance of the impeller heating. The experimental results show that the thinner is better. Finally, realistic heating experiments show the good temperature rise.