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This letter presents a high-power-density multi-input dc-dc converter interfaced with energy storage elements such as a battery and an ultracapacitor. The converter consists of three half-bridges and a high-frequency multi-winding transformer. Bi-directional power flow between input and output is achieved by adjusting the phase-shift
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 voltage application such as electric vehicle. By employing an energy storage inductor and an output capacitive filter at the secondary side, there is little reverse recovery loss in
Even a small gap will improve the ZVS performance since the energy stored is proportional to I2. Gapping the core will help to improve ZVS slightly, and yield other benefits as well. By gapping the core more than 2mils, the variation in magnetizing inductance from unit to unit can be significantly reduced.
ZVS High Step-Up DC-DC Converter with Three-Winding Coupled-Inductor Assisted Voltage Multiplier the leakage inductance energy is recovered to enhance the voltage gain and efficiency while
A zero voltage switching (ZVS) interleaved high step-up converter with coupled inductor and built-in transformer voltage multiplier cell is introduced in this study. A more flexible design is provided by increasing the voltage conversion ratio by utilising the turns ratios of the coupled inductor and built-in transformer.
3562 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 26, NO. 12, DECEMBER 2011 the high-voltage side as the reflected leakage inductance L Lk. N is defined as the turns ratio of the coupled
To increase the power levels and improve voltage conversion ratios in distributed energy storage systems, an interleaving technique has been investigated in BDC [2] with series
The leakage inductor energy is recycled and the voltage spikes are improved greatly by the passive lossless clamped circuit so that the efficiency can be upgraded further. Finally, a 400W 40V
In recent years, synchronous rectifiers (SRs) have replaced the conventional Schottky diode in flyback-based power supplies to improve efficiency significantly. As the demand for efficiency and power density increases yearly, flyback converters must continue to evolve from conventional flyback topology. Several variants
The energy storage system (ESS) is most promising solution to support the power requirements in renewable based power system. In a distributed hybrid energy storage system, the batteries are interconnected with the power system as a backup energy source to improve the reliability of the power supply [1].
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The suggested method applies saturable inductors in auxiliary branches and guarantees zero-voltage switching (ZVS) operation with reduced conduction loss for
The converter provides two bidirectional and unidirectional input ports, handling the energies of a battery storage and a renewable DC source, respectively, to supply a resistive load through a switched capacitor voltage multiplier circuit.
Abstract: 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
Where N is the number of turns of the coil around the inductor core and is the inductor current. According to Faraday''s Law, voltage applied across the Inductor is. 𝑉(𝑡)=𝑁× ∅ . (or) 𝑉= ×. 𝑖 . From above theories Inductor value is calculated as. = 𝜇 𝑛2. ANP029, 2015-06-15, RaB Page 2 of 10. APPLICATION NOTE.
Two input ports of the converter are current-fed and suitable for a unidirectional dc power source, and a chargeable dc energy storage. The proposed converter basic circuit composed of three cascaded power switches, which at their connection points join to the converter three inductors and a switched capacitor voltage
23 · This paper presents a comprehensive analysis of a novel control approach to improve the efficiency of parallel LLC resonant inverters using a combination of a current controlled variable inductor (VI) and phase shift (PS). The proposed control aims to reduce the Root Mean Square (RMS) current, thereby reducing conduction and switching losses,
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
Bidirectional Isolated Current-Source DAB Converter With Extended ZVS/ZCS Range and Reduced Energy Circulation for Storage Applications
The two-stage cascade boost integrated with a coupled-inductor and diode-capacitor voltage multiplier cell has been widely researched due to the advantages of a quadratic voltage gain and low voltage stress for the semiconductor devices. In this paper, the universal ZVS design for a family of quadratic converter is given.
Three Winding Coupled Inductor-Based Dual Active Bridge DC-DC Converter With Full Load Range ZVS Under Wide Voltage Range. / Han, Hua; Guo, Jing; Xu, Guo et al. In: IEEE Transactions on Industrial Electronics, Vol. 69, No. 7, 9492852, 01.07.2022, p. 6935-6947.
This paper proposes a new non-isolated dual-input zero-voltage switching (ZVS) dc-dc boost converter with medium voltage gain. Two input ports of the converter
In early stage of research on small-scale energy storage systems, coupled inductor played a major role in bidirectional DC–DC converters (BDCs) [] to improve the overall gain. To increase the power
The proposed converters use a new technique of adaptive energy storage to minimize auxiliary circulating currents for all line and a three-winding-coupled-inductor-based dual active bridge
The proposed converter is equipped with a three-winding coupled-inductor (TWCI) which not only extends the voltage gain through the tertiary winding mixed within
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
This paper proposes a new integrated magnetics (IM) ZVS full-bridge Dc-Dc converter, which integrates three inductors and one transformer with a single core. Compared with the discrete solution, the proposed integrated converter has less components, smaller size, lower cost and reduced core losses. The leakage inductance of the transformer is used
Dec 28, 2023. Zero Voltage Switching (ZVS) / Zero Current Switching (ZCS) technology, also known as soft-switching technology, can improve the efficiency of low-power soft-switching power supplies up to 80% to 85%. In the 1970s, resonant switching power supplies laid the foundation for soft-switching technology. Basic Introduction.
step-up, DC-DC converter based on coupled-inductor (CL) with three winding and voltage [42]. Moreover, by replacing the discrete energy storage inductor with a CI and arranging in an
In this paper, a three-winding-coupled-inductor-based dual active bridge (TWCI DAB) DC-DC converter is proposed. Similar to the current-fed DAB converter, the
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