IEEE Transactions on Industrial Electronics, ( ISI ), Volume (69), No (3), Year (2022-3) , Pages (2459-2469)

Title : ( Pseudo DC-Link EV Home Charger With a High Semiconductor Device Utilization Factor )

Authors: Hamed Hydari Doostabad , Hosseini Seyed Hossein , Reza Ghazi , Terence Odonnell ,

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This paper proposes, a bidirectional battery-charger for grid-to-vehicle and vehicle-to-grid operations of electric-vehicles (EV). The DC stage of the proposed converter offers a quadratic buck-boost voltage-gain ratio, which makes it suitable for interconnecting the battery pack unit of EVs with both DC and AC grids as a home EV-charger. A high voltage-gain, low voltage and current stress of switches, high values of utilization-factors (UF) for both directions are achieved. Continuous-input current and common-electrical-ground are preserved and also, the continuous-output current of the proposed converter makes the realization of the pseudo-DC-link method possible for connecting to an AC grid. Consequently, the switching power loss in the DC-AC stage of the EV-charger is reduced, and as a result, it allows the proposed charger to run more efficiently and cooler. The operating principle, steady-state characteristics including the current, voltage stress and UF of the switches, and comparison with other state-of-the-art DC-DC bidirectional converters are carried out in detail. Finally, to verify the theoretical achievements, a 500-W laboratory prototype of the proposed EV-charger is implemented. The EV-charger exhibits the capability for AC and DC regulation and demonstrates peak efficiency of 97.8% in the forward and 97.5% in the backward direction modes of operation.


, Bidirectional dc-dc converter, EV home charger, pseudo dc-link method, utilization factor
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author = {Hamed Hydari Doostabad and Seyed Hossein, Hosseini and Ghazi, Reza and Terence Odonnell},
title = {Pseudo DC-Link EV Home Charger With a High Semiconductor Device Utilization Factor},
journal = {IEEE Transactions on Industrial Electronics},
year = {2022},
volume = {69},
number = {3},
month = {March},
issn = {0278-0046},
pages = {2459--2469},
numpages = {10},
keywords = {Bidirectional dc-dc converter; EV home charger; pseudo dc-link method; utilization factor},


%0 Journal Article
%T Pseudo DC-Link EV Home Charger With a High Semiconductor Device Utilization Factor
%A Hamed Hydari Doostabad
%A Seyed Hossein, Hosseini
%A Ghazi, Reza
%A Terence Odonnell
%J IEEE Transactions on Industrial Electronics
%@ 0278-0046
%D 2022