Loss Analysis of Resonant Inductive Power Transfer System for Wireless Charging of e-Rickshaw

Ravikiran, Vaka; Keshri, Ritesh Kumar; Rathore, Akshay Kumar; Chakraborty, Chandan

doi:10.1109/isie.2019.8781288

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…The losses associated to the switching and the reverse recovery are estimated based on the waveforms so they cannot be easily obtained before the system is implemented. In [13], the switching losses also has this drawback. In our model, we use a simplified equation for the switching losses and we also incorporate the losses due to the blanking time and to the snubber losses.…”

Section: A Primary Invertermentioning

confidence: 99%

“…The work in [11] develops a mathematical characterization of the losses in a secondarycontrolled wireless charger focusing only on the DC/AC converter. The works in [12] and [13] characterize the losses but they require the definition of the voltage and current waveforms, which are not usually available in their exact form during the design process.…”

Section: Introductionmentioning

confidence: 99%

“…• For the full-bridge inverter, we have considered an extense set of effects causing losses. Some of them (MOSFET conduction losses, switching losses, diode losses and gate driving) were partially modelled in previous works [11]- [13] but we have also modelled the effects of the blanking time and the snubber losses. By considering them all we provide a more comprehensive and realistic characterization as the experimental results demonstrate that the losses due to the blanking time are not negligible.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of the Power Losses in a SAE J2954-Compliant Wireless Charger

González-González¹,

Triviño-Cabrera²,

Aguado³

2022

IEEE Access

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Electric Vehicles are a realistic and sustainable alternative to traditional vehicles. However, their autonomy is still perceived as a strong limitation. To overcome it, new and simpler methods for charging must be provided. Wireless charging is a feasible solution for this issue. In particular, the charge based on induction methods is the most mature wireless charging technology but it is still under study to improve its efficiency under any condition. To enhace this metric, a deep study about the losses of the charger must be performed. This paper presents a theoretical model for the losses in EV wireless charger so it can help to estimate the efficiency of this system before it is implemented. The main advantage of the proposed model relies on the fact that it can be used without relying on the voltage and current waveforms. Instead, datasheet parameters are used for this computation. The model, which is valid for multiple operational conditions, has been tested in a 1.8-kW prototype. The evaluation is completed with an exhaustive study of the efficiency when the chargers are not operating with nominal conditions, in which critical operating points are detected.

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Section: A Primary Invertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of the Power Losses in a SAE J2954-Compliant Wireless Charger

González-González¹,

Triviño-Cabrera²,

Aguado³

2022

IEEE Access

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Efficiency Analysis of a 7.4 kW Dynamic Wireless Charging System for Electric Vehicle Through GaN Devices

Kumar

Banerjee

Kumar³

2020

2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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Analysis of Losses in Two Different Control Approaches for S-S Wireless Power Transfer Systems for Electric Vehicle

et al. 2023

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This paper presents the study and detailed analysis of converter losses at different stages together with the series-series (S-S) compensating coils in wireless power transfer (WPT) systems, via two distinct approaches to control the power converters. The two approaches towards wireless DC–DC power flow control are termed as the Single Active High-Frequency Wireless Power Transfer (SAHFWPT) system and the Dual Active High-Frequency Wireless Power Transfer (DAHFWPT) system. The operation of converters in SAHFWPT and DAHFWPT are controlled by the extended phase shift (EPS) and dual phase shift method respectively. The general schematic of the SAHFWPT system consists of an active bridge and a passive bridge, while the schematic of the DAHFWPT system consists of both active bridges. The efficiency evolutions of ideal SAHFWPT and DAHFWPT are far away from the real ones. Moreover, this article analyzes the operation and losses of the uni-directional power flow of the WPT system, i.e., from the DC bus in the primary side to the battery load in the secondary side. The loss estimation includes high-frequency switching losses, conduction losses, hard turn on and turn off coil losses, etc. Moreover, the efficiency of the WPT system depends on operation of the converter. A 50 W–3600 W Power range system at a resonant frequency of 85 kHz is implemented in MATLAB/SIMULATION to demonstrate the validity of the proposed method.

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Loss Analysis of Resonant Inductive Power Transfer System for Wireless Charging of e-Rickshaw

Cited by 3 publications

References 16 publications

Assessment of the Power Losses in a SAE J2954-Compliant Wireless Charger

Assessment of the Power Losses in a SAE J2954-Compliant Wireless Charger

Efficiency Analysis of a 7.4 kW Dynamic Wireless Charging System for Electric Vehicle Through GaN Devices

Analysis of Losses in Two Different Control Approaches for S-S Wireless Power Transfer Systems for Electric Vehicle

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