Tehnički vjesnik, Vol. 24 No. 1, 2017.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20150912115356
A new technique for bridgeless charging of EV’s batteries with unity power factor based on borderline control
Atila Skandarnezhad
; Iran University of Science and Technology (IUST), Tehran, Iran
Abdolreza Rahmati
; Iran University of Science and Technology (IUST), Tehran, Iran
Adib Abrishamifar
; Iran University of Science and Technology (IUST), Tehran, Iran
Sažetak
This paper presents a new bridgeless switching converter which is used as an electrical vehicle charger. It connects directly to the utility plug and its output DC voltage varies in the range of 350 V to 650 V. We employ the borderline or peak current control here to correct the charging power factor. This control technique produces lower high-frequency conduction noise rather than other similar techniques, which guarantees the electro-magnetic compatibility (EMC). A clamp capacitor connected in series with source utility brings a DC voltage shift at input nodes, thus converter input voltage remains always positive and there is no need to any active or passive bridge. Averaged instant value of the converter input current is sinusoidal and is in phase with the source voltage. Also, this converter can draw the sinusoidal current at any phase difference with the input AC source. In the other word, the proposed charger is capable of bi-directional power delivery that is an important feature especially in the intelligent charging applications. This charger is a member of synchronous boost family, also it has lower components count and then lower production cost. Finally, the proposed converter and control technique are simulated and validated using Power Simulator (PSim6) software. Very good agreements between the theoretical and simulation results are achieved.
Ključne riječi
borderline current control; bridgeless charger; electrical vehicle; unity power factor
Hrčak ID:
174715
URI
Datum izdavanja:
10.2.2017.
Posjeta: 2.087 *