Results 21 to 30 of about 9,596,978 (183)

A novel bidirectional nonuniform hybrid circuit breaker considering different direction protection requirements

IET Power Electronics, 2022
Hybrid switching technologies such as zero voltage switching (ZVS) and zero current switching (ZCS) are widely accepted to protect DC power systems from different kinds of faults.
Zhuangxian Jiang, Chao Guo, Chengjin Ye, Yi Ding, Xueyong Tang, Youtong Fang   +5 more
doaj   +1 more source

Design and Implementation of an Auto-Oriented Bidirectional ZCS Hybrid Circuit Breaker

IEEE Access, 2021
To protect power systems from severe short circuit faults, the zero-current switching (ZCS) technique is widely accepted due to its fast interruption speed.
Zhuangxian Jiang, Chao Guo, Chengjin Ye, Yi Ding, Xueyong Tang, Youtong Fang   +5 more
doaj   +1 more source

Zero-Vector-Injection Based Current Sharing Control of Interleaved Full-Bridge LLC Resonant Converters

Energies, 2020
Interleaved LLC resonant converters are widely used in various fields. However, interleaved LLC converters under Pulse Frequency Modulation (PFM) will lose the regulation of individual phases, causing a load sharing problem.
Xuanlyu Wu, Dejie Luo, Panpan Wu, Xin Zhao, Zhen Kang, Xiaohua Wu   +5 more
doaj   +1 more source

A Novel ZVS/ZCS Push-Pull LC Resonant DC-DC Converter for Energy Sources

Energies, 2023
In this paper, a novel soft switching push-pull LC resonant DC-DC converter for energy sources is presented. In a high step-up converter, the input of primary side possesses low voltage and high current, so the losses caused by the current account for ...
You-Kun Tai, Kuo-Ing Hwu
doaj   +1 more source

A zero-current-switching based three-phase PWM inverter having resonant circuits on AC-side [PDF]

, 1993
The authors present a zero-current-switching (ZCS)-based three-phase PWM (pulse-width-modulated) inverter having small resonant circuits on the AC side, whose resonant frequency is 50 kHz.
M. Kohata, H. Fujita, Fujita, Hideaki, H. Akagi, Akagi, Hirofumi, Kohata, Masakazu   +5 more
core   +1 more source

Novel Zero-Voltage Zero-Current Transition Buck Converter With Minimal Impact of Active Auxiliary Cell on Overall Dynamics

IEEE Access, 2023
This paper presents a novel zero-voltage zero-current transition DC/DC buck converter, which uses an active auxiliary resonant network to achieve soft switching operation of semiconductor switches and soft-recovery of power diodes over wide output power ...
Ananta Pal, Shib Sankar Saha
doaj   +1 more source

A Comprehensive Analysis of Losses and Efficiency in a Buck ZCS Quasi-Resonant DC/DC Converter

Journal of Low Power Electronics and Applications
As power electronics continue to advance, the demand for highly efficient and low-loss DC/DC converters has grown significantly. This article comprehensively analyses ZCS quasi-resonant switch cell losses and efficiency in buck L-type zero-current ...
Nikolay Hinov, Tsvetana Grigorova
doaj   +1 more source

A New Control Method for a Bi-Directional Phase-Shift-Controlled DC-DC Converter with an Extended Load Range

Energies, 2017
Phase-shifted converters are practically important to provide high conversion efficiencies through soft-switching techniques. However, the limitation on a resonant inductor current in the converters often leads to a non-fulfillment of the requirement of ...
Wenzheng Xu, Nelson Hon Lung Chan, Siu Wing Or, Siu Lau Ho, Ka Wing Chan   +4 more
doaj   +1 more source

General Analysis of Switching Modes in a Dual Active Bridge with Triple Phase Shift Modulation

Energies, 2018
This paper provides an exhaustive analysis of the Dual-Active-Bridge with Triple-Phase-Shift (DAB-TPS) modulation and other simpler ones, identifying all the possible switching modes to operate the DAB in both power flow directions, and for any input-to ...
Carlos Calderon, Andres Barrado, Alba Rodriguez, Pedro Alou, Antonio Lazaro, Cristina Fernandez, Pablo Zumel   +6 more
doaj   +1 more source

A novel soft-switched single-phase grid-connected current-source inverter

Cogent Engineering, 2017
This paper represents a novel soft-switched grid-connected current-source inverter topology and an efficient control strategy using switching flow graph theory.
M. Pakdel, S. Jalilzadeh
doaj   +1 more source