Advances in High-Power Wireless Charging Systems: Overview and Design Considerations

Feng, Han; Tavakoli, Reza; Onar, Omer C.; Pantic, Zeljko

doi:10.1109/tte.2020.3012543

Cited by 184 publications

(47 citation statements)

References 236 publications

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“…The primary and the secondary side average power P 1 and P 2 , and the resulting efficiency η = P 2 /P 1 , are given by (8) and 9:…”

Section: Efficiency Of Wireless Power Transfer Systemsmentioning

confidence: 99%

“…In this frame, a special attention is drawn by the dynamic WPT Systems (WPTSs), where the EV is recharged during motion [3]. In recent years, this idea has been developed in many commercial and laboratory WPTSs prototypes, differing from each other in coupling mechanisms, geometries, power range, and control strategy, as shown in the comprehensive reviews [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Dynamic Wireless Power Transfer Systems Based on Behavioral Modeling of Mutual Inductance

et al. 2021

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This paper proposes a system-level approach suitable to analyze the performance of a dynamic Wireless Power Transfer System (WPTS) for electric vehicles, accounting for the uncertainty in the vehicle trajectory. The key-point of the approach is the use of an analytical behavioral model that relates mutual inductance between the coil pair to their relative positions along the actual vehicle trajectory. The behavioral model is derived from a limited training data set of simulations, by using a multi-objective genetic programming algorithm, and is validated against experimental data, taken from a real dynamic WPTS. This approach avoids the massive use of computationally expensive 3D finite element simulations, that would be required if this analysis were performed by means of look-up tables. This analytical model is here embedded into a system-level circuital model of the entire WPTS, thus allowing a fast and accurate analysis of the sensitivity of the performance as the actual vehicle trajectory deviates from the nominal one. The system-level analysis is eventually performed to assess the sensitivity of the power and efficiency of the WPTS to the vehicle misalignment from the nominal trajectory during the dynamic charging process.

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“…The primary and the secondary side average power P 1 and P 2 , and the resulting efficiency η = P 2 /P 1 , are given by (8) and 9:…”

Section: Efficiency Of Wireless Power Transfer Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Dynamic Wireless Power Transfer Systems Based on Behavioral Modeling of Mutual Inductance

et al. 2021

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“…Electric buses are already being used in cities worldwide and their adoption is continuously growing [305,306], with many scheduling approaches and models being proposed in the literature in order to maximize energy efficiency [307][308][309]. A case study regarding the electrification of a bus depot in London is presented in [310], with reported savings in both financial (£1.7 million over a 14 year lifetime) and environmental (48,200 tons of CO 2 between 2019 and 2050) aspects, when compared to traditional diesel buses. In [311] is presented a scheduling approach for a single depot comprising a mixture of electric and diesel buses, aiming to minimize the operating cost and carbon emissions using constraints of time between travels and driving range of the electric buses.…”

Section: Electric Busesmentioning

confidence: 99%

A Review on Power Electronics Technologies for Electric Mobility

et al. 2020

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Concerns about greenhouse gas emissions are a key topic addressed by modern societies worldwide. As a contribution to mitigate such effects caused by the transportation sector, the full adoption of electric mobility is increasingly being seen as the main alternative to conventional internal combustion engine (ICE) vehicles, which is supported by positive industry indicators, despite some identified hurdles. For such objective, power electronics technologies play an essential role and can be contextualized in different purposes to support the full adoption of electric mobility, including on-board and off-board battery charging systems, inductive wireless charging systems, unified traction and charging systems, new topologies with innovative operation modes for supporting the electrical power grid, and innovative solutions for electrified railways. Embracing all of these aspects, this paper presents a review on power electronics technologies for electric mobility where some of the main technologies and power electronics topologies are presented and explained. In order to address a broad scope of technologies, this paper covers road vehicles, lightweight vehicles and railway vehicles, among other electric vehicles.

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“…Magnetically coupled resonance (MCR) wireless power transfer (WPT) has now grown from a fledgling technology to an alternative technology for domestic and industrial applications [1], [2]. By means of its excellent characteristics of non-contact, full sealing, convenience and automation, the MCR-WPT technique has been taken as an ideal technical solution for electric vehicles, portable electronic products, household appliances, robotics and other fields [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Bandwidth Enhancement for Wireless Power Transfer System Employing Non-Linear Resonator

Jiao

Fan

et al. 2021

IEEE Access

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In order to enhance the tolerance of frequency misalignment and solve the amplitudebandwidth limitation issue of the traditional linear resonance wireless power transfer (WPT) system, this paper proposes a non-linear resonance WPT (NLR-WPT) system which is mainly composed of high frequency power supply, primary linear resonator, secondary non-linear resonator, and load. Such non-linear resonator can be implemented with passive linear capacitor and magnetic saturation inductor, and it can be described by Duffing equation. It has been shown that the bandwidth of NLR-WPT system in the nonlinear state is 1.7 times larger than that in the linear state. In addition, the output voltage basically stabilizes at the same level, the voltage fluctuation is less than 5% over the power frequency ranging from 25.6 kHz to 31.8 kHz, and high overall efficiency of 86.5% can be achieved under a wide range of frequency (27.5 kHz-30.1 kHz). Furthermore, the range of frequency can be extended significantly over which the output voltage is maintained even while the compensate capacitance, load, or coupling coefficient values vary in a certain range. The experimental results agree well with the theoretical analysis and verify the validity of the NLR-WPT system with non-linear resonator. This paper provides a simple and effective scheme to suppress the fluctuation of output voltage, which is suitable for the applications of constant voltage charging such as moving devices or electric vehicles.INDEX TERMS Wireless power transfer (WPT), bandwidth enhancement, stable output voltage, non-linear resonance, magnetic saturation inductor, Duffing equation.

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Advances in High-Power Wireless Charging Systems: Overview and Design Considerations

Cited by 184 publications

References 236 publications

Analysis of Dynamic Wireless Power Transfer Systems Based on Behavioral Modeling of Mutual Inductance

Analysis of Dynamic Wireless Power Transfer Systems Based on Behavioral Modeling of Mutual Inductance

A Review on Power Electronics Technologies for Electric Mobility

Bandwidth Enhancement for Wireless Power Transfer System Employing Non-Linear Resonator

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