Still, LED drivers inspired in generic topologies, like buck, boost, single-ended primary-inductor converter (SEPIC), and half-bridge (HB) converters are also considered in many cases. Among other ...
According to the steady-state operation in Section 2, the ZVS operation of S 1 (S 2) is determined by the energy stored in the leakage inductor and magnetising inductor at t 1. Since this portion of energy is rather large, the capacitor C 1 ( C 2 ) can be considered discharging approximately at a linear rate as shown in ( 4 ) and ( 5 ).
θB θA. tdead = − (22) ωs where θA and θB are the instances where the backward and forward integration [(19) and (20); starting point θi] of the cor-responding leg current equals the charge needed to achieve a voltage change of half the dc-bus voltage (Vdc/2). θA and θB are found by, respectively, solving. θA iHF.
In early stage of research on small-scale energy storage systems, coupled inductor played a major role in bidirectional DC–DC converters (BDCs) [1] to improve the overall gain.
abstract = "In order to realize the equalization of super capacitors connected in series in the storage system and improve efficiency of equalization circuits, we proposed a novel equalizing topology based on the zero-voltage switching (ZVS) for the super capacitor.
letter proposes a simple and practical way to improve the efficiency of adaptive-energy-storage (AES) full ... whereas the inductor is used to store energy for ZVS. View Show abstract A new ZVS ...
In fuel cell vehicle power systems, a power electronic interface is required to manage the power flow between the fuel cell, battery, and the high-voltage DC bus. For this application, a novel zero voltage switching (ZVS) three-port converter (TPC) is proposed in this paper, which has fewer components compared with multiple discrete converters. …
As an improvement, an energy-based ZVS analysis method was proposed in Ref . [6], which considers the optimal charging amount of power devices'' parasitic capacitance in the switching process. In ...
Furthermore, an energy management model and self-adaptive charged system search algorithm has been proposed in Refs. [4] and [5], to determine the optimal operating strategy of the ESS. A bidirectional dc-dc converter is …
In order to realize the equalization of super capacitors connected in series in the storage system and improve efficiency of equalization circuits, we proposed a novel equalizing topology based on the zero-voltage switching (ZVS) for the super capacitor. Additional two ...
This paper presents a novel ZVZCS phase-shift full-bridge (PSFB) DC-DC converter with secondary-side energy storage inductor, which can be utilized in high volt.
energy storage inductance design, the ZVS implementation for the primary-side switches and the voltage stress analysis for the secondary-side rectifiers. Finally, the loss evaluation for the ...
The paper presented the SPDT relay based operation of the DAB converter to enhance the light load efficiency by extending the ZVS operation for energy storage …
In this paper, a novel high-efficiency bidirectional isolated DC–DC converter that can be applied to an energy storage system for battery charging and discharging is proposed. By integrating a coupled inductor and switched-capacitor voltage doubler, the proposed converter can achieve isolation and bidirectional power flow. The …
Y.-E. Wu, B.-H. Pan: High Efficiency and Voltage Conversion Ratio Bidirectional Isolated DC-DC Converter FIGURE 1. Configuration of diversified generation system with energy storage system ...
The inductor, Lx current increases linearly and Cx is discharged to zero at t1 and same instant it again charged up to –V1. iLx and VCx are expressed as iLx(t) = Vo Lx (t −t1) (4) Fig. 1 Derivation of ZVS bidirectional converter (a) Conventional bidirectional cell
Primary-side energy storage inductor can help leading leg switches achieve ZVS condition easily. DCM and BCM operation modes can make primary-side lagging leg switches and secondary-side ...
Synchronous Rectified Soft-Switched Phase-Shift Full-Bridge Converter with Primary Energy Storage Inductor Analysis and Derivations for a Family ZVS Converter Based on a New Active Clamp ZVS Cell LLC ZVZCS Full
The suggested method applies saturable inductors in auxiliary branches and guarantees zero-voltage switching (ZVS) operation with reduced conduction loss for …
Introduction. The traditional full-bridge DC/DC converter with phase-shifted control can achieve zero-voltage-switching (ZVS) without any additional devices. The switching loss …
This paper presents a bidirectional full-bridge CLLC resonant DC-DC converter designed for energy storage systems. The converter architecture comprises two sets of full-bridge CLLC resonant converters, configured in a single input double output arrangement. The frequency modulation control is employed to regulate power flow between the battery storage …
Received 12 September 2023, accepted 15 October 2023, date of publication 23 October 2023, date of current version 1 November 2023. Digital Object Identifier 10.1109/ACCESS.2023.3327219 Extended ZVS-On/ZCS-Off Range for …
For S 3, ZVS is mainly provided by the energy stored in the magnetising inductor, which should be large enough to charge and discharge the capacitors C 3 and C 2 (C 1). The energy condition ZVS …
In the UPS concept, diverse sources and storage elements can be integrated, such as hybrid fuel cell and battery systems [187]- [189], [199], traction motor and energy storage element system [190 ...
Simplified Real-time Digital Control Scheme for ZVS Four-switch Buck-boost with Low Inductor Current ... boost converter for energy storage systems Jan 2016 1 yu Buck–boost dc–dc ...
reduction in the size and conduction losses of the energy storage inductor can also be realized. 6. ... The auxiliary switches enable ZCS turn-on and ZVS turn-off and have lower voltage and current stresses. Furthermore, the proposed NIBC maintains ...
In this article, a new coupled inductor-based high voltage gain dc–dc converter with continuous input current and reduced semiconductor stresses (with respect to the competitive topologies) is presented. The coupled inductor windings are used in the voltage multiplier cells to increase the boost factor of the converter. The proposed topology …
The proposed topology achieves a high efficiency due to: 1) soft switching of the main and auxiliary switches along with the power diodes; 2) active clamp circuit based coupled …
Modular Multilevel Dual Active Bridge DC-DC Converter with ZVS and Fast DC Fault Recovery for Battery Energy Storage Systems March 2016 DOI: 10.1109/APEC.2016.7468092
In working modes, the resonant inductor L 2 charges and discharges the parallel snubber capacitor of switch S 1 to achieve the zero-voltage switching (ZVS) condition for power switch S 1. In addition, the capacitor C 4 prevents DC current from flowing through the
A novel ZVZCS phase-shifted full-bridge converter with secondary-side energy storage inductor used for electric vehicles February 2015 DOI: 10.1109/IECON.2014.7049262
A novel ZVS non-isolated bidirectional DC-DC converter for energy storage systems. October 2017. DOI: 10.1109/IECON.2017.8216115. Conference: IECON 2017 - 43rd Annual Conference of the IEEE ...
This letter proposes a simple and practical way to improve the efficiency of an adaptive-energy-storage (AES) full bridge converter. Since the turns ratio of coupled inductor is 1 in the conventional AES converter, the leading-leg and lagging-leg have the same peak current. By modifying turns ratio of coupled inductor, part of leading-leg …
Design guidelines for selecting the ZVS assisting inductor are presented to achieve ZVS for all active switches over a wide load range without significantly increasing …
This paper presents a synchronous rectified Soft-switched Phase-Shift (PS) Full-bridge (FB) converter with primary-side energy storage inductor, which can be utilized in low output voltage and high output current applications. This converter can be operated in CCM, BCM and DCM respectively based on different designs. However, optimum design …
Novel Active Rectification for Extended ZVS Operation of Bidirectional Full Bridge DC/DC Converter for Energy Storage Application November 2018 DOI: 10.13140/RG.2.2.33206.75848