A Comprehensive Comparison of Resonant Topologies for Magnetic Wireless Power Transfer

Corti, Fabio; Paolucci, Libero; Reatti, Alberto; Grasso, Francesco; Pugi, Luca; Tesi, N.; Grasso, Emanuele; Nienhaus, Matthias

doi:10.1109/melecon48756.2020.9140657

Cited by 31 publications

(19 citation statements)

References 9 publications

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“…Constant voltage or constant current output characteristics can be realized through the topology parameter configuration and working frequency setting. These match the constant current/constant voltage charging characteristics of the battery and make it easy to realize zero voltage switching (ZVS) [20], thereby reducing switching losses. The secondary side adopts the s-type topology structure, which is beneficial to reduce the number of secondary side components and the weight of onboard equipment.…”

Section: System Topologymentioning

confidence: 99%

An Anti-Interference Control Method for an AGV-WPT System Based on UIO-SMC

Hou

Huang

2021

WEVJ

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During the wireless charging of an automated guided vehicle (AGV), the output voltage is unstable due to changes in parameters such as coil mutual inductance and load resistance caused by external interferences and internal mismatches of the system. In this paper, an integral sliding mode control method based on an unknown input observer (UIO) containing predictive equations is designed to build an inductor–capacitor–capacitor-series (LCC-S) topology model for wireless power transfer (WPT). The observer designed by this method can perceive changes in the secondary resistance parameter and the mutual inductance of the primary and secondary coils. The design with the prediction equation speeds up the convergence of the observer to the true value. The observer’s compensation of the control system avoids the occurrence of integral oversaturation. The experimental results show that, based on the UIO-SMC system output, voltage can be accurately controlled to meet the requirement for a given voltage. The effect of suppressing disturbance is better than with SMC and PI control. When the system parameter changes, it has better voltage anti-interference performance and stronger ripple suppression.

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Section: System Topologymentioning

confidence: 99%

An Anti-Interference Control Method for an AGV-WPT System Based on UIO-SMC

Hou

Huang

2021

WEVJ

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“…In [153], the comparison between S-LCC, LCC-S and LCC-LCC is done. The LCC-S shown good performances in terms of efficiency, over a wide load variation.…”

Section: B Multi-resonant Compensation Networkmentioning

confidence: 99%

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Bharatiraja²,

2021

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Considering a future scenario in which a driverless Electric Vehicle (EV) needs an automatic charging system without human intervention. In this regard, there is a requirement for a fully automatable, fast, safe, cost-effective, and reliable charging infrastructure that provides a profitable business model and fast adoption in the electrified transportation systems. These qualities can be comprehended through wireless charging systems. Wireless Power Transfer (WPT) is a futuristic technology with the advantage of flexibility, convenience, safety, and the capability of becoming fully automated. In WPT methods resonant inductive wireless charging has to gain more attention compared to other wireless power transfer methods due to high efficiency and easy maintenance. This literature presents a review of the status of Resonant Inductive Wireless Power Transfer Charging technology also highlighting the present status and its future of the wireless EV market. First, the paper delivers a brief history throw lights on wireless charging methods, highlighting the pros and cons. Then, the paper aids a comparative review of different type's inductive pads, rails, and compensations technologies done so far. The static and dynamic charging techniques and their characteristics are also illustrated. The role and importance of power electronics and converter types used in various applications are discussed. The batteries and their management systems as well as various problems involved in WPT are also addressed. Different trades like cyber security economic effects, health and safety, foreign object detection, and the effect and impact on the distribution grid are explored. Prospects and challenges involved in wireless charging systems are also highlighting in this work. We believe that this work could help further the research and development of WPT systems..

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“…Typically, there are four basic resonant topologies of resonant inductive power transfer system, labeled as SS (series-series), SP (series-parallel), PS (parallel-series), PP (parallelparallel) [18]. There are other compensation topologies that may be used to improve the performance of the WPT system (for example S-LCC, LCC-S, and LCC); however, more components are required [24]. The power of the AC grid is firstly converted to a direct current (DC) using an AC/DC rectifier.…”

Section: Dynamic Wireless Power Transfer 21 General Descriptionmentioning

confidence: 99%

Optimal Coupler Topology for Dynamic Wireless Power Transfer for Electric Vehicle

et al. 2021

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Recently, the number of electric vehicles (EVs) is increasing due to the decline of oil resources and the rising of greenhouse gas emissions. However, EVs have not received full acceptance by consumers due to the limitations of the stored energy and charging problems. The dynamic or in-motion charging solution has become a suitable choice to solve the battery-related issues. Many researchers and vehicle manufacturers are working to develop an efficient charging system for EVs. In order to improve the efficiency of the dynamic wireless power transfer (DWPT), the electromagnetic coupling coefficient between the two parts of the coupler must be maximized. This paper was dedicated to find the optimal topology of a magnetic coupler with the best coupling factor while taking in consideration the displacement and the misalignment of the EV. The article is introduced by developing a methodology for characterizing the electrical parameters of couplers, followed by a comparative study of different forms of coils suitable for dynamic charging of electric vehicles. The particularity of the proposed study concerned the overall dimensions, or the areas occupied by the windings of the coils remaining the same for all the chosen shapes and corresponding to the surface that is actually available under the EV. Simulation and experimental tests were carried out to validate the proposed study.

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A Comprehensive Comparison of Resonant Topologies for Magnetic Wireless Power Transfer

Cited by 31 publications

References 9 publications

An Anti-Interference Control Method for an AGV-WPT System Based on UIO-SMC

An Anti-Interference Control Method for an AGV-WPT System Based on UIO-SMC

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Optimal Coupler Topology for Dynamic Wireless Power Transfer for Electric Vehicle

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