Reactive power compensation in three phase high output inductive power transfer

Safaee, Alireza; Woronowicz, Konrad; Dickson, Tim

doi:10.1109/epec.2015.7379979

Cited by 20 publications

(6 citation statements)

References 15 publications

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“…In article [183], addition ferrites cores added in between phases to achieve proper current balance. In other methods equations derived for the capacitor tuning, by considering IPMI [184,185].Therefore, to achieve best operation in three phase system, great understanding modulation index and flux path of power converters required. Compensation needed to design in way that handles cross coupling.…”

Section: B Poly Phase Systemsmentioning

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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Section: B Poly Phase Systemsmentioning

confidence: 99%

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Bharatiraja²,

2021

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“…Therefore, there was no need for complicated pickup structures. For heavy-duty applications, a tuning approach for the three-phase WPT with a long track is presented [160]. There are some high power three-phase WPT systems in operation, such as the Brunswick and Berlin buses with a maximum power of 200 kW based on Bombardier PRIMOVE technology.…”

Section: Coils' Dimensions and Number Of Turnsmentioning

confidence: 99%

Magnetically Coupled Resonance WPT: Review of Compensation Topologies, Resonator Structures with Misalignment, and EMI Diagnostics

2018

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Magnetically coupled resonance wireless power transfer systems (MCR WPT) have been developed in recent years. There are several key benefits of such systems, including dispensing with power cords, being able to charge multiple devices simultaneously, and having a wide power range. Hence, WPT systems have been used to supply the power for many applications, such as electric vehicles (EVs), implantable medical devices (IMDs), consumer electronics, etc. The literature has reported numerous topologies, many structures with misalignment effects, and various standards related to WPT systems; they are usually confusing and difficult to follow. To provide a clearer picture, this paper aims to provide comprehensive classifications for the recent contributions to the current state of MCR WPT. This paper sets a benchmark in order to provide a deep comparison between different WPT systems according to different criteria: (1) compensation topologies; (2) resonator structures with misalignment effects; and, (3) electromagnetic field (EMF) diagnostics and electromagnetic field interference (EMI), including the WPT-related standards and EMI and EMF reduction methods. Finally, WPT systems are arranged according to the application type. In addition, a WPT case study is proposed, an algorithm design is given, and experiments are conducted to validate the results obtained by simulations.

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“…In the application of multiple inverter sources and multitransmitting coils, there is often a problem of mutual coupling between transmitting coils. Safaee et al [6] proposed a three-phase wireless charging system resonance compensation method. Two groups of DD coils are arranged overlappingly in [7], so that the total magnetic flux between the two groups of transmitting coils is zero so as to achieve the effect of decoupling between the transmitting coils.…”

Section: Introductionmentioning

confidence: 99%

“…Safaee et al. [6] proposed a three‐phase wireless charging system resonance compensation method. Two groups of DD coils are arranged overlappingly in [7], so that the total magnetic flux between the two groups of transmitting coils is zero so as to achieve the effect of decoupling between the transmitting coils.…”

Section: Introductionmentioning

confidence: 99%

Current balance method of dual windings parallel coils based on distributed capacitor compensation in high‐power WPT systems

Bie

Wang

Song

et al. 2021

IET Electric Power Appl

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Dual windings parallel (DWP) coils are often used in high-power wireless charging applications to reduce current stress and internal resistance. Due to the inconsistent selfinductance and strong coupling of the two windings, the advantages of the DWP coils cannot be fully utilized. In particular, the current stresses of the two windings are different, which will cause one of the stress to exceed the limit, and the temperature rise is too high. The reason for the current imbalance in the two windings is analysed in this work, and a distributed capacitor compensation method is proposed to balance the current stress in the two windings. Finally, a WPT system with the DWP transmitting coil was built as an example to demonstrate the effectiveness of the proposed method. The experimental results show that the current ratio in two windings decreased from 1.70 to 1.05 after using the proposed compensation method.

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Reactive power compensation in three phase high output inductive power transfer

Cited by 20 publications

References 15 publications

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Magnetically Coupled Resonance WPT: Review of Compensation Topologies, Resonator Structures with Misalignment, and EMI Diagnostics

Current balance method of dual windings parallel coils based on distributed capacitor compensation in high‐power WPT systems

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