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IEEE transactions on power electronics, 2021-09, Vol.36 (9), p.9854-9863
2021

Details

Autor(en) / Beteiligte
Titel
An Inductive Coupler Array for In-Motion Wireless Charging of Electric Vehicles
Ist Teil von
  • IEEE transactions on power electronics, 2021-09, Vol.36 (9), p.9854-9863
Ort / Verlag
IEEE
Erscheinungsjahr
2021
Link zum Volltext
Quelle
IEL
Beschreibungen/Notizen
  • An inductive power transfer (IPT) system is envisaged as the best solution to conveniently charge electric vehicles (EVs). While stationary IPT systems are becoming commercialized, significant research is being conducted to address the challenges related to dynamic IPT systems. Dynamic or in-motion IPT systems require a fully electrified roadway with embedded inductive couplers with accompanying circuitry. The large number of electronic components required, however, increases the system complexity, reducing the reliability and economic viability of dynamic IPT systems proposed to-date. This article proposes a simple yet robust push-pull driven coupler array (PPCA), aiming to decrease the number of switches required to drive the in-road couplers. This article is the first to report a configuration where only N +1 switches are required to independently energize N primary IPT couplers. Any number of couplers can be activated simultaneously in the array without proportionally increasing the current stress on the switches. A state-space model is developed and implemented in PLECS to investigate the efficiency and power transferred to an EV traveling over the proposed PPCA while considering the variation in the coupling and the self-inductances of the couplers. A 3.3-kW scaled prototype PPCA consisting of three primary couplers and two secondary couplers has been implemented to validate the performance of the proposed configuration.

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