Optimization of a Contactless Power Transfer System for Electric Vehicles

Hasanzadeh, Saeed; Vaez‐Zadeh, Sadegh; Isfahani, Arash Hassanpour

doi:10.1109/tvt.2012.2209464

Cited by 97 publications

(37 citation statements)

References 20 publications

(26 reference statements)

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“…Then, the quality factor, including Q p coil and Q s coil , can be varied due to the variation of the self-inductance as expressed in Eqs. (8) and (9). According to Eq.…”

Section: Discussionmentioning

confidence: 99%

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Dynamic Wireless Charging for Roadway-Powered Electric Vehicles: A Comprehensive Analysis and Design

Deng¹,

Jia²,

Zhang³

2016

PIER C

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Abstract-This paper presents a comprehensive analysis of the roadway powering system for electric vehicles (EVs) and proposes a design from the perspective of power track design, integration, and powering control strategy, aiming to ensure the charging power and persistence, enhance the control flexibility, and reduce the construction cost. 1) A novel design scheme is first proposed to determine the length and number of turns for power tracks by investigating the power supply-and-demand and the loss. 2) A novel evaluation index, namely the magnetic distribution variance, is proposed to determine the gap between adjacent tracks, which can effectively produce evenly-distributed energy field, thus improving the dynamic charging performance for EVs. 3) A sectional powering control strategy is proposed to implement a cost-saving and flexible roadway powering system. Lastly, the simulated and experimental results show that the exemplified prototype can achieve the transmission power 50 W over the distance of 200 mm, which verifies the proposed EV dynamic charging system with the salient advantages of the constant energization, flexible power control, and cost saving.

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“…Then, the quality factor, including Q p coil and Q s coil , can be varied due to the variation of the self-inductance as expressed in Eqs. (8) and (9). According to Eq.…”

Section: Discussionmentioning

confidence: 99%

“…Then, the fundamental design of the bipolar magnetic coupler was introduced for the primary control [8]. In [9], a contactless charging system based on a circular coil configuration was presented for EVs. In recent years, the EV dynamic charging has attracted increasing attention.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Wireless Charging for Roadway-Powered Electric Vehicles: A Comprehensive Analysis and Design

Deng¹,

Jia²,

Zhang³

2016

PIER C

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“…The potential advantages of IPT systems include immunity to ice, water, and other chemicals; environmental friendliness; and zero maintenance requirement. In addition, IPT systems have been adopted in a number of applications, including in the wireless charging of biomedical implants [10], mining applications [11], underwater power supply [12], electric vehicles [13]- [20], and railway applications [21], because of their ease of use, environmental sustainability, and Manuscript received Nov. 9, 2015; accepted Jan. 28,2016 Recommended for publication by Associate Editor Dong-Myung Lee.low lifecycle cost.…”

Section: Introductionmentioning

confidence: 99%

A Power Regulation and Harmonic Current Elimination Approach for Parallel Multi-Inverter Supplying IPT Systems

Li¹,

Liwen²,

He³

2016

Journal of Power Electronics

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The single resonant inverter is widely employed in typical inductive power transfer (IPT) systems to generate a high-frequency current in the primary side. However, the power capacity of a single resonant inverter is limited by the constraints of power electronic devices and the relevant cost. Consequently, IPT systems fail to meet high-power application requirements, such as those in rail applications. Total harmonic distortion (THD) may also violate the standard electromagnetic interference requirements with phase shift control under light load conditions. A power regulation approach with selective harmonic elimination is proposed on the basis of a parallel multi-inverter to upgrade the power levels of IPT systems and suppress THD under light load conditions by changing the output voltage pulse width and phase shift angle among parallel multi-inverters. The validity of the proposed control approach is verified by using a 1,412.3 W prototype system, which achieves a maximum transfer efficiency of 90.602%. Output power levels can be dramatically improved with the same semiconductor capacity, and distortion can be effectively suppressed under various load conditions.

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“…One of the best proposed structures for the IPTEC is the "disc-type transformer," which can be placed under the vehicle [19]. In [20], [21], [22], the geometries of a pair of spiral coils are optimized to maximize the inductive power transmission. In [5], a control method for frequency optimization based on switching loss is proposed.…”

Section: Introductionmentioning

confidence: 99%

A New Maximum Inductive Power Transmission Capacity Tracking Method

Ameri¹,

Varjani²,

Mohamadian³

2016

Journal of Power Electronics

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In certain applications, such as IPT-based EV charger (IPTEC), any variation in alignment and distance between pickup and charger primary leads to a change in leakage and magnetic impedance magnitudes. The power transmission capacity is not always at the maximum level because of these variations. This study proposes a new low-cost tracking method that achieves the Maximum Inductive Power Transmission Capacity (MIPTC). Furthermore, in the proposed method, the exchange of information between load and source is not required. For an application such as IPTEC, the load detected by the IPTEC varies continuously with time because of the change in state of the charge. This load variation causes a significant variation in IPT resonant circuit voltage gain. However, the optimized charging output voltage should be kept constant. From the analysis of the behavior of the IPT circuit at different working frequencies and load conditions, a MIPTC operation point that is independent of load condition can be identified. Finally, the experimental results of a developed prototype IPT circuit test show the performance of the proposed method.

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Optimization of a Contactless Power Transfer System for Electric Vehicles

Cited by 97 publications

References 20 publications

Dynamic Wireless Charging for Roadway-Powered Electric Vehicles: A Comprehensive Analysis and Design

Dynamic Wireless Charging for Roadway-Powered Electric Vehicles: A Comprehensive Analysis and Design

A Power Regulation and Harmonic Current Elimination Approach for Parallel Multi-Inverter Supplying IPT Systems

A New Maximum Inductive Power Transmission Capacity Tracking Method

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