An AC Processing Pickup for IPT Systems

Wu, Hunter; Boys, J.T.; Covic, Grant A.; Ren, Saining; Hu, Patrick

doi:10.1109/tpel.2009.2037002

Cited by 100 publications

(27 citation statements)

References 20 publications

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“…The system parameters are listed in Table I. As mentioned above, due to the existence of the envelope pit effect, the stability pre-conditions should be checked in advance, according to equations (8) and (13). The critical damping point of the input sinusoidal voltage is A b = 1.2 V, the fall time of the envelope pit effect is t f = 1.2 ms, and the bottom value of the damping is I dmax = 1.4 A.…”

Section: Simulation and Experimental Results Verificationmentioning

confidence: 99%

See 1 more Smart Citation

Study on an Optimal Control Method for Energy Injection Resonant AC/AC High Frequency Converters

Su¹,

Dai²,

Wang³

et al. 2013

Journal of Power Electronics

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In energy injection resonant AC-AC converters, due to the low frequency effect of the AC input envelope and the low energy injection losses requirement, the constant and steady control of the high frequency AC output envelope is still a problem that has not been solved very well. With the aid of system modeling, this paper analyzes the mechanism of the envelope pit on the resonant AC current. The computing methods for the critical damping point, the falling time and the bottom value of the envelope pit are presented as well. Furthermore, this paper concludes the stability precondition of the system AC output. Accordingly, an optimal control method for the AC output envelope is put forward based on the envelope prediction model. This control method can predict system responses dynamically under different series of control decisions. In addition, this control method can select best series of control decisions to make the AC output envelope stable and constant. Simulation and experimental results for a contactless power transfer system verify the control method.

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Section: Simulation and Experimental Results Verificationmentioning

confidence: 99%

“…The topology of the direct AC-AC converter is simple and easy to control. Thus this direct converter has been widely used in contactless power transfer (CPT) systems [8]- [10] and inductive heating systems [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

Study on an Optimal Control Method for Energy Injection Resonant AC/AC High Frequency Converters

Su¹,

Dai²,

Wang³

et al. 2013

Journal of Power Electronics

View full text Add to dashboard Cite

show abstract

“…Maximum current is 400A with a power rating of 240kW. [86], ICNIRP in Europe [87] and ARPANSA in Australia [88]. There are different technologies that are being considered to provide WPT facilities.…”

Section: Chargingmentioning

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

147

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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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“…A feature of the power supply is that the DC link in the power supply, and hence the track current I 1 , is amplitude modulated at twice the mains frequency due to the minimal DC energy storage. For DDC the pick-up controller topology needs to be able to regulate its output power on a continuous basis or in multiple small steps like those discussed in [23,24]. An LC parallel tuned AC-AC pick-up controller presented in [23] is used simply because it has high efficiency and fast response, and the capability to vary the output power continuously from no load to full load.…”

Section: Dynamic Demand Control Conceptsmentioning

confidence: 99%

“…For DDC the pick-up controller topology needs to be able to regulate its output power on a continuous basis or in multiple small steps like those discussed in [23,24]. An LC parallel tuned AC-AC pick-up controller presented in [23] is used simply because it has high efficiency and fast response, and the capability to vary the output power continuously from no load to full load. The primary and secondary charging pads used in this system are the circular lumped coil types as discussed in section 3.1 and presented in [25,7].…”

Section: Dynamic Demand Control Conceptsmentioning

confidence: 99%

Electric Vehicles – Personal transportation for the future

Covic

Boys

Budhia

et al. 2010

WEVJ

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Plug-in EVs are being heralded as a step towards acceptance of pure EV's. However concerns remain regarding uptake by consumers, in terms of range anxiety and economic operation. These concerns are mitigated if energy can be transferred to the vehicle while it is moving, but there are implications in terms of the highway infrastructure required without restricting a vehicle's freedom to move while providing power over air-gaps in excess of 200mm. Such flexibility brings with it problems that are not normally inherent in stationary systems where electronic alignment may be employed to control magnetic coupling.The system must cope with variances as seen by both the power supply and the EV, while ensuring that the power receiver is compatible with both stationary and roadway systems. This paper discusses recent developments in wireless charging infrastructure for EV's and describes systems that may be suitable in future. As vehicles operate on the Grid they will constitute a substantial load that must be managed. A solution is presented here at little infrastructural cost such that the Grid, 'on load' has better power quality than 'off-load'.

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An AC Processing Pickup for IPT Systems

Cited by 100 publications

References 20 publications

Study on an Optimal Control Method for Energy Injection Resonant AC/AC High Frequency Converters

Study on an Optimal Control Method for Energy Injection Resonant AC/AC High Frequency Converters

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

Electric Vehicles – Personal transportation for the future

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