A modified cascaded multilevel converter topology for high power bidirectional inductive power transfer systems with the reduction of switching devices and power losses

Nguyen, Bac Xuan; Vilathgamuwa, D.M.; Foo, Gilbert; Wang, Peng; Ong, Alex

doi:10.1109/peds.2015.7203475

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…However, experimental results in a DWPT system with loss analysis are not available. Other converter layouts include multi-level converters [42], [43], [44], cascaded multi-level converters [45] [46], [47], and matrix converters [48], [49]. Multi-level converters are particularly interesting for medium and high voltage applications that can reduce the required voltage rating and component stress of single switches by using a modular approach [42].…”

Section: Take Down Policymentioning

confidence: 99%

“…A cascaded multilevel converter uses multiple converters (modules) connected in series to increase the power capacity. Therefore, it provides a high degree of scalability and a simpler control scheme [47]. One drawback of such system is the need of multiple power sources and therefore system costs are high, as each converter requires its own power supply.…”

Section: Take Down Policymentioning

confidence: 99%

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A critical review on wireless charging for electric vehicles

Machura

2019

Renewable and Sustainable Energy Reviews

204

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Electric vehicles (EVs) have recently been significantly developed in terms of both performance and 10 drive range. There already are various models commercially available, and the number of EVs on road 11 increases rapidly. Although most existing EVs are charged by electric cables, companies like Tesla, 12 BMW and Nissan have started to develop wireless charged EVs that don't require bulky cables. 13 Rather than physical cable connection, the wireless (inductive) link effectively avoids sparking over 14 plugging/unplugging. Furthermore, wireless charging opens new possibilities for dynamic chargingcharging while driving. Once realised, EVs will no longer be limited by their electric drive range and the requirement for battery capacity will be greatly reduced. This has been prioritised and promoted worldwide, particularly in UK, Germany and Korea. This paper presents a thorough literature review on the wireless charging technology for EVs. The key technical components of wireless charging are summarised and compared, such as compensation topologies, coil design and communication. To enhance the charging power, an innovative approach towards the use of superconducting material in coil designs is investigated and their potential impact on wireless charging is discussed. In addition, health and safety concerns about wireless charging are addressed, as well as their relevant standards. Economically, the costs of a wide range of wireless charging systems has also been summarised and compared.

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Section: Take Down Policymentioning

confidence: 99%

Section: Take Down Policymentioning

confidence: 99%

A critical review on wireless charging for electric vehicles

Machura

2019

Renewable and Sustainable Energy Reviews

204

View full text Add to dashboard Cite

show abstract

“…Alternative approach is a centralized single power converter supplies power to the moving pick through extended power track. [198]. Number of power electronic components reduces in this method compare to previous method.…”

Section: Figure 33 Common Ac Line Supplying To H Bridges Having Long Trackmentioning

confidence: 84%

“…Down side of this technique load on the secondary side increases. In literature [198], multilevel converter used offers simple control, having the advantages like lower switching losses and power scalable operation. The disadvantage this method is, it needs more number of switches and multiple isolated dc voltage sources.…”

Section: Bidirectional Inductive Charger (V2g and G2v)mentioning

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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“…The cascaded structure has saliency preponderance in terms of reducing the voltage stress and alleviating the harmonic contamination of the output voltage, namely, with a lower THD. Furthermore, more operating modes can be achieved with higher flexibility in the cascaded structure; therefore the switching losses can be reduced effectively [54].…”

Section: Parallel and Cascaded Invertersmentioning

confidence: 99%

An Overview of Resonant Circuits for Wireless Power Transfer

et al. 2017

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Abstract:With ever-increasing concerns for the safety and convenience of the power supply, there is a fast growing interest in wireless power transfer (WPT) for industrial devices, consumer electronics, and electric vehicles (EVs). As the resonant circuit is one of the cores of both the near-field and far-field WPT systems, it is a pressing need for researchers to develop a high-efficiency high-frequency resonant circuit, especially for the mid-range near-field WPT system. In this paper, an overview of resonant circuits for the near-field WPT system is presented, with emphasis on the non-resonant converters with a resonant tank and resonant inverters with a resonant tank as well as compensation networks and selective resonant circuits. Moreover, some key issues including the zero-voltage switching, zero-voltage derivative switching and total harmonic distortion are addressed. With the increasing usage of wireless charging for EVs, bidirectional resonant inverters for WPT based vehicle-to-grid systems are elaborated.

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A modified cascaded multilevel converter topology for high power bidirectional inductive power transfer systems with the reduction of switching devices and power losses

Cited by 8 publications

References 16 publications

A critical review on wireless charging for electric vehicles

A critical review on wireless charging for electric vehicles

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

An Overview of Resonant Circuits for Wireless Power Transfer

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