EPE Association: EPE 2017 - LS1f: Inductive power transfer and grid coupled control

EPE 2017 - LS1f: Inductive power transfer and grid coupled control
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2017 ECCE Europe - Conference > EPE 2017 - Topic 07: Power Supplies > EPE 2017 - LS1f: Inductive power transfer and grid coupled control

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   A PLL Control for Self-Tuning of Parallel Wireless Power Transfer Receivers Utilizing Switch-Mode Gyrator Emulated Inductors
By Mohamed SAAD [View]
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Abstract: In multiple receivers wireless power transfer (WPT) systems, it is preferable to retune the resonant frequency of every receiver to the transmitter operating frequency in front of frequency mismatches. This paper discusses a proposal for electronic tuning for WPT receivers by means of a variable active switch-mode inductance. The proposed method benefits from the gyrator concept to emulate a variable inductance. Instead of the conventional approach of linear amplifier based implementation of a gyrator, a switch-mode gyrator circuit is exploited for more efficient operation. Additionally, a PLL-like control is presented to enable self-tuning for the receiver resonant tank. Furthermore, a design-space characterization for the system dynamic behavior has been discussed to show the control robustness and the instabilities (including slow-scale and fast-scale chaotic instabilities) it may undergo.

   Dynamic IPT system with lumped coils for railway applications
By Fernando GONZÁLEZ [View]
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Abstract: In this paper the sizing process of a dynamic wireless power transfer system based on lumped coils forrailway application is presented. In order to perform the sizing, constraints related to the applicationare taken into account to establish the optimal dimensions of the coils that enhance the coupling factor.On the basis of the magnetic behaviour of a single pair of coils, the behaviour of an array of twelvetransmitter coils and a receiver coil that moves over them is inferred. The designed system achieves aconstant power transmission for the given conditions. Simulations have been carried out and a smallscaleprototype has been built in order to verify the results.

   Feedforward Control Strategy for the state-decoupling Stand-alone UPS with LC output Filter
By Jinghang LU [View]
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Abstract: In this paper, the disturbance rejection performance of the cascaded control strategy for UPS system is investigated. The comparison of closed loop system performance between conventional cascaded control (CCC) strategy and state-decoupling cascaded control (SDCC) strategy are further explored. In order to further increase the load current disturbance rejection capability of the state-decoupling in UPS system, a feedforward control strategy is proposed. In addition, the design principle for the current and voltage regulators are discussed. Simulation and experimental results are provided to verify the theoretical analysis.

   Operation Boundaries of Single/Three Phase Inductive Power Transfer Systems With Series-Series Compensation
By Ugaitz IRURETAGOYENA [View]
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Abstract: This paper presents the key parameters of four different Series-Series Inductive Power Transmission (SS-IPT) configurations: (a) single phase with dual control, (b) single phase with primary side control, (c) three phase with dual control and (d) three phase with primary side control, considering two different control strategies; switching frequency and DC voltage regulations.

EPE 2017 - LS1f: Inductive power transfer and grid coupled control
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2017 ECCE Europe - Conference > EPE 2017 - Topic 07: Power Supplies > EPE 2017 - LS1f: Inductive power transfer and grid coupled control
	[return to parent folder]

	A PLL Control for Self-Tuning of Parallel Wireless Power Transfer Receivers Utilizing Switch-Mode Gyrator Emulated Inductors By Mohamed SAAD	[View] [Download]
Abstract: In multiple receivers wireless power transfer (WPT) systems, it is preferable to retune the resonant frequency of every receiver to the transmitter operating frequency in front of frequency mismatches. This paper discusses a proposal for electronic tuning for WPT receivers by means of a variable active switch-mode inductance. The proposed method benefits from the gyrator concept to emulate a variable inductance. Instead of the conventional approach of linear amplifier based implementation of a gyrator, a switch-mode gyrator circuit is exploited for more efficient operation. Additionally, a PLL-like control is presented to enable self-tuning for the receiver resonant tank. Furthermore, a design-space characterization for the system dynamic behavior has been discussed to show the control robustness and the instabilities (including slow-scale and fast-scale chaotic instabilities) it may undergo.

	Dynamic IPT system with lumped coils for railway applications By Fernando GONZÁLEZ	[View] [Download]
Abstract: In this paper the sizing process of a dynamic wireless power transfer system based on lumped coils forrailway application is presented. In order to perform the sizing, constraints related to the applicationare taken into account to establish the optimal dimensions of the coils that enhance the coupling factor.On the basis of the magnetic behaviour of a single pair of coils, the behaviour of an array of twelvetransmitter coils and a receiver coil that moves over them is inferred. The designed system achieves aconstant power transmission for the given conditions. Simulations have been carried out and a smallscaleprototype has been built in order to verify the results.

	Feedforward Control Strategy for the state-decoupling Stand-alone UPS with LC output Filter By Jinghang LU	[View] [Download]
Abstract: In this paper, the disturbance rejection performance of the cascaded control strategy for UPS system is investigated. The comparison of closed loop system performance between conventional cascaded control (CCC) strategy and state-decoupling cascaded control (SDCC) strategy are further explored. In order to further increase the load current disturbance rejection capability of the state-decoupling in UPS system, a feedforward control strategy is proposed. In addition, the design principle for the current and voltage regulators are discussed. Simulation and experimental results are provided to verify the theoretical analysis.

	Operation Boundaries of Single/Three Phase Inductive Power Transfer Systems With Series-Series Compensation By Ugaitz IRURETAGOYENA	[View] [Download]
Abstract: This paper presents the key parameters of four different Series-Series Inductive Power Transmission (SS-IPT) configurations: (a) single phase with dual control, (b) single phase with primary side control, (c) three phase with dual control and (d) three phase with primary side control, considering two different control strategies; switching frequency and DC voltage regulations.