A three-phase AC to DC converter with controllable displacement factor

Williams, B.W.; Mirkazemi-Moud, M.; Tooth, D.J.; Finney, S.J.

doi:10.1109/pesc.1995.474937

Cited by 9 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These circuits can reduce the filter size and weight and enhance the efficiency of the system. Several topologies, such as using a single switch with a diode bridge rectifier [17], three switches with a dual diode, shown in Figure 2a [18], and six switches with free-wheeling diodes, shown in Figure 2b [19], are used to improve the power factor, to reduce the harmonic currents of AC input and to get a well-filtered output DC voltage. To enhance the efficiency and switching frequency of buck IPQCs, Robert W. Erickson and Yungtaek Jang proposed a new zero-current-switching (ZCS) three-phase high quality rectifier, which is illustrated in Figure 3 [15,20,21].…”

Section: Introductionmentioning

confidence: 99%

Three-Phase High-Power and Zero-Current-Switching OBC for Plug-In Electric Vehicles

Wang

Meng

et al. 2015

Energies

View full text Add to dashboard Cite

Abstract:In this paper, an interleaved high-power zero-current-switching (ZCS) onboard charger (OBC) based on the three-phase single-switch buck rectifier is proposed for application to plug-in electric vehicles (EVs). The multi-resonant structure is used to achieve high efficiency and high power density, which are necessary to reduce the volume and weight of the OBC. This study focuses on the border conditions of ZCS converting with a battery load, which means the variation ranges of the output voltage and current are very large. Furthermore, a novel hybrid control method combining pulse frequency modulation (PFM) and pulse width modulation (PWM) together is presented to ensure a driving frequency higher than 10 kHz, and this will reduce the unexpected inner resonant power flow and decrease the total harmonic distortion (THD) of the input current under a light load at the end of the charging process. Finally, a prototype is established, and experiments are carried out. According to the experimental results, the conversion efficiency is higher than 93.5%, the THD about 4.3% and power factor (PF) 0.98 under the maximum power output condition. Besides, a three-stage charging process is also carried out the experimental platform.

show abstract