High-Efficiency Contactless Power Transfer System for Electric Vehicle Battery Charging Application

Zheng, Cong; Lai, Jih-Sheng; Chen, Rui; Faraci, William Eric; Zahid, Zaka Ullah; Gu, Bin; Zhang, Lanhua; Lisi, Gianpaolo; Anderson, Dave

doi:10.1109/jestpe.2014.2339279

Cited by 145 publications

(27 citation statements)

References 20 publications

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“…From Equations (15)- (25) and the equivalent circuit as shown in Figure 5 and analysis in references [6][7][8]23], the proposed SS/S SHRC has the same characteristics as the FRC based on SS compensation topology. Capacitors C 11 and C 12 , in series with the primary inductor L 1 , play the same role as the primary compensation capacitor in full-bridge topology.…”

Section: Resonance Analysismentioning

confidence: 98%

“…Inductive power transfer (IPT) systems transfer electric power across an air gap by magnetic coupling and produces comparative advantages over transfer with physical contact. It has been widely used in commercial and industrial applications where convenience and safety are imperative, such as household apparatuses [1], biomedical applications [2], and electric vehicle (EV) charging [3][4][5][6][7][8][9]. Different from strongly coupled systems, the mutual coupling of IPT systems is generally weak.…”

Section: Introductionmentioning

confidence: 99%

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Series-Series/Series Compensated Inductive Power Transmission System with Symmetrical Half-Bridge Resonant Converter: Design, Analysis, and Experimental Assessment

et al. 2019

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In order to compensate the large leakage inductance and improve the power transmission capacity, capacitors are widely used in inductive power transfer (IPT) systems, which results in high voltage or current stresses in the resonant tanks and limits higher volt-ampere (VA) rating of the transfer power, especially in medium and low frequency applications. This paper presents a symmetrical half-bridge resonant converter (SHRC) for series-series/series compensated IPT systems with detailed analysis and design. It operates at a relatively low frequency of 12.5 kHz, suitable for IGBT applications. The theoretical analysis shows that, compared with full-bridge resonant converter (FRC) for IPT, the symmetrical half-bridge resonant converter achieves a higher efficiency. Simulation and a prototype of 1500 W power output were built to verify the theoretical analysis. The experimental results show that the power loss of SHRC is 39.7 W while that of FRC is 79.4 W, which is consistent with the theoretical analysis. The global efficiency of the IPT based on the proposed converter is 91.6%.

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Section: Resonance Analysismentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Series-Series/Series Compensated Inductive Power Transmission System with Symmetrical Half-Bridge Resonant Converter: Design, Analysis, and Experimental Assessment

et al. 2019

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“…Thus, it is a conservative estimation of the efficiency, because according to [26] higher output powers result in higher efficiencies. The efficiency of the bidirectional wireless charging device is assumed to be equal to an unidirectional wireless charging device, with an air gap of 8 cm and a power of 4 kW according to [27]. The charging-and discharging efficiencies of both batteries are taken from [28].…”

Section: Energy Systemmentioning

confidence: 99%

Effect of EV Movement Schedule and Machine Learning-Based Load Forecasting on Electricity Cost of a Single Household

Arens¹,

Derendorf²,

Schuldt³

et al. 2018

Energies

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An energy management system (EMS) for a household energy system is proposed in this paper, which is composed of a photovoltaic (PV) generator , a home energy storage (HES), an electric vehicle (EV), an electrical household load and a grid connection, with 24 h operation horizon. The EMS objective is to reduce the electricity cost of the household by using a linear optimization algorithm. Two different EV schedules are utilized for simulations. One mainly describes rides to work and the other describes rides in a domestic context, such as rides to a supermarket. A forecast algorithm for the electrical load of the household, based on k-means clustering and an artificial neural network, is evaluated and integrated into the EMS to realistically represent the household’s load profile. It is shown that the developed forecast algorithm performs better than two of the benchmarks. Another finding is that the more storage is available at PV-production intervals, the higher the effect of forecast uncertainties and the lower the electricity cost of the household, disregarding the investment cost.

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“…Recently, some effort has been put into the development of contactless charging systems for electric vehicles. The authors of [10] presented a loosely coupled transformer system for charging an electric vehicle with up to 4 kW power. They used a full-bridge inverter on the primary side and realized zero-voltage switching (ZVS).…”

Section: Introductionmentioning

confidence: 99%

A Class-E Amplifier for a Loosely Coupled Inductive Power Transfer System with Multiple Receivers

Sutor

Heining

2019

Energies

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We present a method for optimizing the electronic power system for a new type of photobioreactor or photoreactor in general. In the case of photobioreactors, photosynthetic active microorganisms or cells are grown. A novel concept for the illumination of photobioreactors was necessary, as the external illumination of those reactors leads to a limited penetration depth of light. Due to the limited penetration depth, no standard reactors can be use for cultivation, but custom made reactors with very small volume to surface ratio have to be used. This still prevents the technology from a large scale industrial impact. The solution we propose in this paper is an internal illumination via Wireless Light Emitters. This increases the manageable culture volume of photosynthetic active microorganisms or cells. The illumination system is based on floating light emitters, which are powered wirelessly by near field resonant inductive coupling. The floating light emitters are able to illuminate a photobioreactor more homogeneously than external illumination systems do. We designed a class-E amplifier and field coils to produce an intermediate frequency electromagnetic field inside the reactor. An appropriate magnetic flux density was found to be approx. B = 1 mT and the driving frequency is f = 176 kHz. We conducted experiments with a laboratory size photoreactor. The cultivation volume was 30 L containing up to 3000 WLEs. The maximum electric power input was more than 300 W and we calculated an efficiency of up to 76%.

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High-Efficiency Contactless Power Transfer System for Electric Vehicle Battery Charging Application

Cited by 145 publications

References 20 publications

Series-Series/Series Compensated Inductive Power Transmission System with Symmetrical Half-Bridge Resonant Converter: Design, Analysis, and Experimental Assessment

Series-Series/Series Compensated Inductive Power Transmission System with Symmetrical Half-Bridge Resonant Converter: Design, Analysis, and Experimental Assessment

Effect of EV Movement Schedule and Machine Learning-Based Load Forecasting on Electricity Cost of a Single Household

A Class-E Amplifier for a Loosely Coupled Inductive Power Transfer System with Multiple Receivers

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