Results 31 to 40 of about 264 (120)

A new dual‐input high step‐up DC–DC converter with reduced switches stress and low input current ripple

open access: yesIET Power Electronics, 2021
In this paper, a novel structure of non‐isolated dual‐input ultra‐high step‐up DC–DC converter with low voltage stress across semiconductor elements and low input current ripple is suggested. In the presented converter, when the power switches are turned‐
Ataollah Samadian   +4 more
doaj   +1 more source

A new enhanced‐boost switched‐capacitor quasi Z‐source network

open access: yesIET Power Electronics, 2021
This paper proposes a new enhanced‐boost non‐transformer‐based impedance source network. The strong boosting ability of the proposed topology is realized by making use of the switched capacitor concept in the formerly introduced enhanced‐boost quasi Z ...
Seyyed Majid Hosseini   +3 more
doaj   +1 more source

A soft switching four‐phase converter with ultra‐high step down conversion ratio and automatic uniform current sharing

open access: yesIET Power Electronics, 2021
This paper introduces a new high step down four‐phase converter with soft switching and automatic uniform current sharing. The phase number of the introduced topology can be expanded.
Amin Asghari
doaj   +1 more source

A new soft‐switching multi‐input quasi‐Z‐source converter for hybrid sources systems

open access: yesIET Renewable Power Generation, 2021
This study focuses on a zero voltage transition multi‐input quasi‐Z‐source converter (qZSC). This topology can be used for input sources with different voltages and currents to provide a constant output voltage.
Amir Torki Harchegani   +2 more
doaj   +1 more source

Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems

open access: yesIET Generation, Transmission & Distribution, 2021
The high‐surety power supply systems are gaining great attention to enhance the reliability of uninterruptable power supplies. A high‐resistance fault along a high‐surety power supply feeder results in a low fault current, making the conventional high ...
Roja Rouhani   +2 more
doaj   +1 more source

RPWM selective voltage harmonic elimination method for single‐phase five‐level MPUC inverter based on cell division

open access: yesIET Generation, Transmission & Distribution, 2021
The conventional selective harmonic elimination method of random pulse width modulation (RPWM) is only suitable for the two‐level inverter. Furthermore, when the harmonics below 6 kHz are selectively eliminated, it is easy to cause a low average ...
Guohua Li, Dongman Cao, Yufeng Wang
doaj   +1 more source

An interleaved ZVS ultra‐large gain converter for sustainable energy systems applications

open access: yesIET Power Electronics, 2021
This paper proposes an interleaved zero‐voltage switching (ZVS) ultra‐large gain converter. By implementing coupled‐inductor (CI) and built‐in transformer (BIT) together with a switched capacitor (SC) voltage multiplier cell (VMC), a higher degree of ...
Alireza Bagherian   +3 more
doaj   +1 more source

PWM techniques for an asymmetric multilevel binary inverter: an FPGA‐based implementation

open access: yesIET Power Electronics, 2021
This paper deals with the design and implementation of the conventional Level‐Shifted‐PWM (LS‐PWM) and the PWM‐hybrid modulation techniques in a Field‐Programmable Gate Array (FPGA) development card, applicable to binary asymmetric multilevel converters;
José A. Juárez‐Abad   +2 more
doaj   +1 more source

Comparative analysis of switching losses and current ripple of continuous and discontinuous SVPWM strategies for unbalanced two‐phase four‐leg VSI Fed unsymmetrical two‐phase induction motor

open access: yesIET Power Electronics, 2021
This paper presents a comparative analysis of the continuous space vector pulse width modulation and the discontinuous space vector pulse width modulation in terms of the switching losses and current ripple reduction for the unbalanced two‐phase four‐leg
Kaset Muangthong, Chakrapong Charumit
doaj   +1 more source

A high‐gain IΓ‐source hybrid single‐phase multilevel inverter for photovoltaic application

open access: yesIET Power Electronics, 2021
Impedance‐based step‐up converters are widely developed for photovoltaic applications due to providing single‐stage conversion, high‐efficiency, low voltage and current stresses, and high boost‐factor. An improved Γ‐source (IΓ‐source) single‐phase hybrid
Sako Ghasimi   +2 more
doaj   +1 more source

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