Optimizing compensation topologies for inductive power transfer at different mutual inductances

Nguyen, Van Thuan; Yu, Seung-Duck; Yim, Seong-Woo; Park, Kijun

doi:10.1109/wow.2017.7959384

Cited by 19 publications

(7 citation statements)

References 8 publications

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“…This result is obtained considering a series capacitive compensation; anyway, for other compensation topologies, the evaluation can be done in a similar way [27][28][29][30].…”

Section: Numerical Pre-designmentioning

confidence: 99%

Modelling and Design of a Coils Structure for 100 kW Three-Phase Inductive Power Transfer System

Colussi

Guglielmi

2022

Energies

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This paper presents the modeling, the design and verification of a three-phase coil structure for high-power Wireless-Power-Transfer (WPT) in automotive applications. The system, a Three-Polar-Pad (TPP), with complex mechanical geometry, is analytically modeled with an equivalent simplified structure. Thanks to this simplification, a numerical design is performed to minimize cross-coupling effects among different phases of the same side (receiver or transmitter) maximizing the linkage flux receiver-to-transmitter and then the power transferred. The analytical model is then verified in a Finite-Element-Analysis (FEA) environment. A final design, comprehensive of the shielding, is proposed matching the preliminary design constraints. Hence, the preliminary model is verified by testing a prototype using a three-phase Silicon Carbide (SiC) inverter at the transmitter side. The capability of the system is demonstrated by transferring 100 kW with more than 94% DC-to-DC efficiency over a 50 mm air gap in perfectly aligned conditions.

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“…This result is obtained considering a series capacitive compensation; anyway, for other compensation topologies, the evaluation can be done in a similar way [27][28][29][30].…”

Section: Numerical Pre-designmentioning

confidence: 99%

Modelling and Design of a Coils Structure for 100 kW Three-Phase Inductive Power Transfer System

Colussi

Guglielmi

2022

Energies

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“…For the IPT system to function very well, the power factor is desired to be unity. Therefore, Table 1 gives the efficiency of IPT system when using the SS [25,26] and LCC-LCC [34,35] topologies as follows. Figure 4 illustrates the WPT equivalent circuit, which contains a converter at both the transmitter and receiver sides.…”

Section: Parameters Affecting the Ipt System Performancementioning

confidence: 99%

A brief review: basic coil designs for inductive power transfer

Nanda

Yusoff

Toha

et al. 2020

IJEECS

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The inductive power transfer (IPT) has contributed to the fast growth of the electric vehicle (EV) market. The technology to recharge the EV battery has attracted the attention of many researchers and car manufacturers in developing green transportation. In IPT charging system, the coil design is indispensable in enhancing the EV battery charging process performance. This paper starts by describing the two charging techniques; static charging and dynamic charging before further presents the IPT system descriptions. Afterwards, this paper describes a brief review of coil designs which discusses the critical factors that affect the power transmission efficiency (PTE) including their basic designs, design concepts and features merits. The discussions on the basic coil designs for IPT are of the circular spiral coil (CSC), square coil (SC), rectangular coil (RC), and double-D coil (DDC). Furthermore, the significant advantages and limitations of each research on different geometries are analyzed and discussed in this paper. Finally, this paper evaluates some essential aspects that influence the coil geometry designs in practical.

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“…In both cases, the higher values of current increase the MOSFET driver losses, and higher voltages increase the MOSFET capacitive losses. Because none of the basic four topologies can provide ZPA for constant current (CC) or constant voltage (CV) in WTP applications, advanced topologies have been proposed (Nguyen et al, 2017;Li et al, 2014) in the resonance-compensation network between the converter and the transmitting coil (Qu et al, 2017;Feng et al, 2016). In these hybrid topologies, an extra reactance is added to the circuit, which helps for a lower switching loss compared with the S or P topologies.…”

Section: Compensation Networkmentioning

confidence: 99%

A Review of Methods and Challenges for Improvement in Efficiency and Distance for Wireless Power Transfer Applications

Kuka

Alkahtani

2020

Power Electronics and Drives

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Over the past few years, interest and research in wireless power transfer (WPT) have been rapidly incrementing, and as an effect, this is a remarkable technology in many electronic devices, electric vehicles and medical devices. However, most of the applications have been limited to very close distances because of efficiency concerns. Even though the inductive power transfer technique is becoming relatively mature, it has not shown near-field results more than a few metres away transmission. This review is focused on two fundamental aspects: the power efficiency and the transmission distance in WPT systems. Introducing the principles and the boundaries, scientific articles will be reviewed and discussed in terms of their methods and respective challenges. This paper also shows more important results in efficiency and distance obtained, clearly explaining the theory behind and obstacles to overcome. Furthermore, an overlook in other aspects and the latest research studies for this technology will be given. Moreover, new issues have been raised including safety and security.

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Optimizing compensation topologies for inductive power transfer at different mutual inductances

Cited by 19 publications

References 8 publications

Modelling and Design of a Coils Structure for 100 kW Three-Phase Inductive Power Transfer System

Modelling and Design of a Coils Structure for 100 kW Three-Phase Inductive Power Transfer System

A brief review: basic coil designs for inductive power transfer

A Review of Methods and Challenges for Improvement in Efficiency and Distance for Wireless Power Transfer Applications

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