Development of Wireless In-Wheel Motor Using Magnetic Resonance Coupling

Sato, Masaru; Yamamoto, Gaku; Gunji, Daisuke; Imura, Takehiro; Fujimoto, Hiroshi

doi:10.1109/tpel.2015.2481182

Cited by 147 publications

(45 citation statements)

References 22 publications

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“…This variation is introduced to prove the proposed control robustness. In both the conventional state-of-the-art efficiency control and the proposed one, the efficiency maximization is achieved with the equivalent load impedance optimization method, as explained in Section 2 and Section 4; this method is sound and it has been adopted in previous literature as (20)- (22) and (25)- (30) . In the figures, the instantaneous values are indicated by thin lighter lines while averaged values are represented by thicker dark lines.…”

Section: Static Charging Scenariomentioning

confidence: 99%

“…Previous papers dealt with power control on primary side (13) (14) , efficiency control on secondary side (15)- (17) or power and efficiency control by using both sides (18)- (20) . If efficiency control was performed on the secondary side, the power had to be regulated on the primary side and vice versa, as until now it has been impossible to manipulate them both on the same side without using complex phase-shift controls (21) .…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, two-mode control is a simple regulation method implemented by a Half Active Rectifier (HAR), as presented in many papers such as (20) (24) . In these studies, the overall system efficiency when the power is on the kilowatt order is over 0.88, including the losses generated while shorting the HAR input terminals.…”

Section: Introductionmentioning

confidence: 99%

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Secondary-side-only Control for High Efficiency and Desired Power with Two Converters in Wireless Power Transfer Systems

et al. 2017

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In recent years, wireless power transfer has been a popular research topic because it allows both static and dynamic charging without using cables, thus easing the process for the user. However, achieving high efficiency and desired power corresponding to the load at any time is important. Communication between sides is often used, but sometimes its operation is not guaranteed because of harsh environmental conditions or malfunctioning. This paper addresses this problem by proposing a novel yet simple control strategy. It consists of simultaneous regulation of both power and efficiency by the secondary side alone, without communication with the primary side. When the primary side is not manipulated, the power is controlled by an AC/DC converter by using a two-mode control. On the other hand, the efficiency is controlled by a DC/DC converter by adjusting the DC link voltage to a reference value related to the maximum wireless transmitting efficiency. In this paper, the control concept as well as the design are provided. The proposed control shows a good trade-off by achieving power regulation capability at the cost of slight reduction in efficiency when compared to the currently existing state-of-the-art control.

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Section: Static Charging Scenariomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Secondary-side-only Control for High Efficiency and Desired Power with Two Converters in Wireless Power Transfer Systems

et al. 2017

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“…But in this case the motor is connected to the power and control systems through wires that can get damaged because of harsh environment, vibration and acceleration, thus causing serious trouble. Sato et al proposed a wireless in-wheel motor system (W-IWM) [24].…”

Section: General Ev Setupmentioning

confidence: 99%

A Comprehensive Study of Key Electric Vehicle (EV) Components, Technologies, Challenges, Impacts, and Future Direction of Development

Un-Noor¹,

Padmanaban²,

Mihet‐Popa³

et al. 2017

Preprint

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Electric vehicles (EV) are getting more commonplace in the transportation sector in recent times. As the present trend suggests, this mode of transport is likely to replace the internal combustion engine (ICE) vehicles in near future. Each of the main EV components has a number of technologies that are currently in use or can become prominent in the future. EVs can cause significant impacts on the environment, power system, and other related sectors. The present power system can face huge instabilities with enough EV penetration; but with proper management and coordination, EVs can be turned into a major contributor to the successful implementation of smart grid. There are possibilities of immense environmental benefits as well, as the EVs can extensively reduce the greenhouse gas emission from the transportation sector. However, there are some major obstacles for EVs to overcome before replacing the ICE vehicles totally. This paper is focused on reviewing all the useful data available on EV configurations, energy sources, motors, charging techniques, optimization techniques, impacts, trends, and possible directions of future developments. Its objective is to provide an overall picture of the current EV technology and ways of future development to assist in future researches in this sector.

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“…As one of the most prominent technologies, the WPT is changing the conventional usage of energy in daily life for human being. In addition, it shows great potential for various applications, such as portable electronic devices [4], medical instruments [5], non-accessible electronics [6], heating [7], electric vehicles (EVs) [8][9][10] including the stationary charging [11], dynamic move-and-charge [12] and in-wheel motor drive [13].…”

Section: Introductionmentioning

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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Development of Wireless In-Wheel Motor Using Magnetic Resonance Coupling

Cited by 147 publications

References 22 publications

Secondary-side-only Control for High Efficiency and Desired Power with Two Converters in Wireless Power Transfer Systems

Secondary-side-only Control for High Efficiency and Desired Power with Two Converters in Wireless Power Transfer Systems

A Comprehensive Study of Key Electric Vehicle (EV) Components, Technologies, Challenges, Impacts, and Future Direction of Development

An Overview of Resonant Circuits for Wireless Power Transfer

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