Efficiency Enhancement for Dynamic Wireless Power Transfer System With Segmented Transmitter Array

Sampath, J.P.K.; Vilathgamuwa, D.M.; Alphones, Arokiaswami

doi:10.1109/tte.2015.2508721

Cited by 71 publications

(22 citation statements)

References 24 publications

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“…Array coil [67] MIMO-coils [80] Four-coils [15, 62-64, 81, 111-115] Dual Tx & Rx [83] Domino coil [66] Five-coils [119] Two-coils [12,[116][117][118] LC-LC circuit [82] SIMO-coils [120] Conformal bumper [124] Single-switch-Single-diode [84 ] Double-Sided LCLC [85] Parallel discs [122,123] Hexagonal cell array [131] Matrix charging pad [130] Single plate [125][126][127][128][129] Two flat rectangular Tx-Rx [87] Single Tx-single Rx [33,69,[91][92][93][94][95][96][97][98][99][100][101][102][103][104][105] Multi-Rx [76,106] Rectangular [78] MRC CC Circular [78] Hexagonal [78] YZ & XZ plane [121] Single ...…”

Section: Wpt Icmentioning

confidence: 99%

“…Based on the new developments in improving the transfer distance, a new planar design would be able to charge the devices on desks and tables. To address the poor transfer efficiency defects of a two-coil energy transfer mechanism, as considered in [20,23,59], midrange WPT techniques, such as relay resonators [60,61] (Figure 4a), four coils [15,[62][63][64] (Figure 4b), U coils [65] (Figure 4c), domino coils [56,66] (Figure 4d), array coils [67] (Figure 4e), and dipole coils [68] (Figure 4f) are proposed in previous studies and fused into future planar WPT chargers with increased distances or air gaps. Based on these studies, the transfer distances were 20, 60, 100, 180 (for seven resonator coils), 20, and 500 cm ( [60], [15], [65], [66], [67] and [68], respectively).…”

Section: Transfer Distancementioning

confidence: 99%

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Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

et al. 2017

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Abstract:Traditional power supply cords have become less important because they prevent large-scale utilization and mobility. In addition, the use of batteries as a substitute for power cords is not an optimal solution because batteries have a short lifetime, thereby increasing the cost, weight, and ecological footprint of the hardware implementation. Their recharging or replacement is impractical and incurs operational costs. Recent progress has allowed electromagnetic wave energy to be transferred from power sources (i.e., transmitters) to destinations (i.e., receivers) wirelessly, the so-called wireless power transfer (WPT) technique. New developments in WPT technique motivate new avenues of research in different applications. Recently, WPT has been used in mobile phones, electric vehicles, medical implants, wireless sensor network, unmanned aerial vehicles, and so on. This review highlights up-to-date studies that are specific to near-field WPT, which include the classification, comparison, and potential applications of these techniques in the real world. In addition, limitations and challenges of these techniques are highlighted at the end of the article.

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Section: Wpt Icmentioning

confidence: 99%

Section: Transfer Distancementioning

confidence: 99%

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

et al. 2017

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“…Shallow and frequent charging can enhance battery life [27]. A double-spiral repeater was proposed to design effective dynamic WPT systems [28]. [29] revealed that inductive power transfer is promising to dynamic charging.…”

Section: System Designmentioning

confidence: 99%

Vehicular Energy Network

Lam

Leung

2017

IEEE Trans. Transp. Electrific.

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Abstract-The smart grid spawns many innovative ideas, but many of them cannot be easily integrated into the existing power system due to power system constraints, such as the lack of capacity to transport renewable energy in remote areas to the urban centers. An energy delivery system can be built upon the traffic network and electric vehicles (EVs) utilized as energy carriers to transport energy over a large geographical region. A generalized architecture called the vehicular energy network (VEN) is constructed and a mathematically tractable framework is developed. Dynamic wireless (dis)charging allows electric energy, as an energy packet, to be added and subtracted from EV batteries seamlessly. With proper routing, energy can be transported from the sources to destinations through EVs along appropriate vehicular routes. This paper gives a preliminary study of VEN. Models are developed to study its operational and economic feasibilities with real traffic data in the United Kingdom. Our study shows that a substantial amount of renewable energy can be transported from some remote wind farms to London under some reasonable settings and VEN is likely to be profitable in the near future. VEN can complement the power network and enhance its power delivery capability.

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“…in segmented transmitters, several transmitters are deployed in a track, and they can be driven by one or more than one converter [10]. This method addresses the issues of undesirable losses and exposure in noninteractive parts [4,11,16], electromagnetic interferences [4,12], and high ratings of drivers and compensators [12,14]. However, making a uniform transferred power profile is not easily achievable, and if transmitters are not closely spaced, the linkage flux would be even less than that of the elongated type [11,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Expandable N-Legged Converter to Drive Closely Spaced Multitransmitter Wireless Power Transfer Systems for Dynamic Charging

Farajizadeh

Vilathgamuwa

Jovanović

et al. 2020

IEEE Trans. Power Electron.

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Expandable and flexible wireless power transfer (WPT) systems have been in demand in numerous industry applications, especially for dynamic chargers in electric vehicles. Those systems, however, brings about certain technical issues such as modulation technique and topology of the transmitter-side, and transferred power profile of the transmitters. In this paper, a new converter topology to drive closely spaced segmented Dynamic Wireless Power Transfer (DWPT) systems is proposed. The proposed converter can be expanded to cater for different number of transmitters, and it can provide a uniform transferred power profile throughout the path of transmitter coils, known as track. Furthermore, this study focuses on analyzing the operation of the converter and the effect of closely spaced transmitters over its operation. To show the effectiveness of the proposed topology and its modulation technique, the converter is simulated and experimentally tested using a laboratory prototype. The results are compared and analyzed, and their close agreement shows the validity of the proposed technique.

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Efficiency Enhancement for Dynamic Wireless Power Transfer System With Segmented Transmitter Array

Cited by 71 publications

References 24 publications

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

Vehicular Energy Network

Expandable N-Legged Converter to Drive Closely Spaced Multitransmitter Wireless Power Transfer Systems for Dynamic Charging

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