A fixed-frequency soft switching series resonant converter with adaptive auxiliary circuit for transportation applications

Safaee, Alireza; Woronowicz, Konrad; Dickson, Tim; Koushki, Behnam; Jain, Praveen; Bakhshai, Alireza

doi:10.1109/itec.2015.7165823

Cited by 2 publications

(3 citation statements)

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“…and demand basis operation are some of the advantageous features that would make modular converters an attractive option for marine electrical systems. [20][21][22][23][24][25][26][27][28][29][30][31][32]. In SRC the load is connected in series with resonant tank, while in PRC, the load is connected across the resonant tank.…”

Section: D) Device Switching Lossesmentioning

confidence: 99%

Design, analysis and development of tank-less, non-resonant and low-loss zero current switching inverter

Moreddy¹

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Section: D) Device Switching Lossesmentioning

confidence: 99%

Design, analysis and development of tank-less, non-resonant and low-loss zero current switching inverter

Moreddy¹

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“…Moreover, SRC has poor voltage regulation at light-load conditions [52]. The FB dc-dc converters with secondary series resonant tank have been proposed in [53], [54]. Soft-switching and resonant operations can be separated in these converters.…”

Section: Series Resonant Full-bridge Convertersmentioning

confidence: 99%

“…One of the adaptive auxiliary circuit topologies is shown in Figure 2.13 [110]. The auxiliary circuit configurations proposed in [107]- [110] reduces the auxiliary inductance by a factor of two compared to the topologies in [100]- [106]. However, the applicability of these topologies is limited by reduced effective duty cycle and high voltage spikes across rectifier diodes.…”

Section: Passive Auxiliary Circuit Assisted Full-bridge Dc-dc Convertersmentioning

confidence: 99%

Soft-switched DC-DC converters for PHEV charger

Kanamarlapudi¹

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An efficient power conditioning system plays a significant role in the design of battery charging systems for plug-in hybrid electric vehicles (PHEVs). A typical PHEV battery charging system consists of two stages. The first stage is an ac-dc conversion stage which regulates the input power factor, input current total harmonic distortion and intermediate dc bus voltage. The second stage is a dc-dc conversion stage which regulates the output voltage and provides galvanic isolation between utility grid and PHEV battery pack. The research works presented in this thesis focus on the dc-dc conversion stage of a PHEV charger.The phase-shift modulated (PSM) isolated full-bridge (FB) dc-dc converter topology is commonly preferred for the dc-dc stage. High efficiency, high power density, high reliability, and galvanic isolation are the main features of this topology. However, zero-voltage switching (ZVS) is not ensured for all switches at light-load conditions resulting in poor efficiency of the converter. Furthermore, high voltage spikes are present across output rectifier diodes due to voltage ringing on the secondary side. These voltage spikes are further intensified with the increase in series inductance or leakage inductance of the transformer, output filter inductance and switching frequency. In addition, the voltage spikes increase the electromagnetic interference (EMI) of the converter. Therefore, the motivation for the research work presented in this thesis is to address these drawbacks in order to obtain an improved performance for the dc-dc converter over the entire operating range.Auxiliary circuits can be added to the FB converter for improving the ZVS range.Additionally, snubber circuits can minimize the voltage spikes. In this research work, two new gating techniques, namely asymmetrical pulse-width modulation (APWM) and trailing-edge pulse-width modulation (TEPWM) gating techniques and a passive auxiliary circuit assisted topology are proposed to improve the performance of the dc-dc conversion stage in a PHEV charger.

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A fixed-frequency soft switching series resonant converter with adaptive auxiliary circuit for transportation applications

Cited by 2 publications

References 20 publications

Design, analysis and development of tank-less, non-resonant and low-loss zero current switching inverter

Design, analysis and development of tank-less, non-resonant and low-loss zero current switching inverter

Soft-switched DC-DC converters for PHEV charger

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