Results 71 to 80 of about 880 (182)

Design, Modelling and Control of a MW‐level Hydrogen Converter for an Off‐Grid DC Hydrogen Production System

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes a high‐power hydrogen converter specifically designed for megawatt‐level (MW‐scale) off‐grid hydrogen production systems powered by renewable energy sources. A two‐stage ISOP architecture is adopted to fulfill the demanding requirements of high voltage step‐up, high efficiency, low output ripple, and reliable power regulation.
Rui Zhou   +4 more
wiley   +1 more source

Novel ZCS transformerless high gain DC-DC converters for renewable energy conversion systems [PDF]

open access: yes, 2019
This paper proposes new zero current switching (ZCS) transformerless high gain DC-DC converters for renewable energy conversion systems. A conventional high gain transformerless DC-DC converters derived with a simple auxiliary resonant network to obtain ...
Bhajana, V.V.Subrahman. Kumar   +1 more
core   +1 more source

Module Ratio Optimisation Strategy for DC/DC Converters in ISOP Hybrid Solid‐State Transformers

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes a hybrid solid‐state transformer (SST) topology based on the input‐series output‐parallel (ISOP) architecture, integrating the high controllability of the dual active bridge (DAB) converter with the soft‐switching characteristics of the CLLLC resonant converter, thereby significantly enhancing power conversion efficiency and dynamic
Peng Wang   +3 more
wiley   +1 more source

A New Class of Low-Cost Three-Phase [PDF]

open access: yes, 2008
— Several new schemes for constructing Q0 lowharmonic rectifiers are introduced here. These Q0 ac–dc topologies are derived from parent dc–dc converter topologies.
Zero-voltage Switching   +1 more
core  

A zero-current-switching PWM flyback converter with a simple auxiliary switch [PDF]

open access: yes, 1999
A simple and effective approach of turning an isolated hard-switched converter design into a soft-switched one is presented. By adding an auxiliary winding, switch, and small capacitor to the conventional pulsewidth modulation (PWM)-isolated flyback ...
Hui, SY, Chung, HSH, Wang, WH
core   +1 more source

Analysis of the Characteristics in Wide‐Input High Step‐Up LLC Resonant Converter

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper analyze the characteristics in wide‐input high step‐up LLC resonant converter. More accurate model is built based on the classical FHA method to improve its practical utilization, reanalyzes the operating characteristics combined with the time domain analysis, proposes the resonant power analysis.
Yuge Yue, Guangzhu Wang
wiley   +1 more source

Dual Switching Mode Scheme for Hybrid Boost‐Flyback/Flyback Photovoltaic Microinverter Applications

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
Based on an ON‐time control approach and a transition mechanism of a variable transition point, this paper presents a hybrid BCM‐BF/DCM‐F microinverter, which is operated in BCM‐BF mode for one segment of a half grid cycle and DCM‐F mode for the rest.
Feng Zhang   +5 more
wiley   +1 more source

Hybrid SiC/Si Five‐Level ANPC DAB Converter With Optimized Switching Sequence and PWM Control for Enhanced Efficiency

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes a five‐level asymmetric active neutral point clamped dual active bridge converter integrated with a hybrid SiC/Si component design, which features a wide voltage transfer range, soft‐switching operation and high control flexibility; to enhance efficiency, it analyses the topology's redundant switching states, proposes an optimized ...
Jin Li   +4 more
wiley   +1 more source

Zero voltage zero current three level DC-DC converter [PDF]

open access: yes, 2000
A three-level DC-to-DC converter is provided having zero-voltage and zero-current switching (ZVZCS). A flying capacitor is provided on the primary side of the converter to achieve zero voltage switching (ZVS). In addition, during freewheeling (i.e., when

core  

Resonant Topologies for High‐Voltage High Step‐Up DC/DC Power Conversion With High Ratio Transformer

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper compares different resonant converters, particularly the typical LC and CLL resonant converters based on the special high‐voltage transformer structure. Several perspectives are investigated, including the circuit, step‐up characteristics, transformer considerations, and external characteristics.
Yuge Yue, Guangzhu Wang
wiley   +1 more source

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