Results 41 to 50 of about 951 (213)

DC-SSCB Snubber for Electric Propulsion Ships With Effective Surge Voltage Reduction and Fast Dissipation of Fault Current Energy

IEEE Access
This paper proposes a snubber circuit for SSCB that performs voltage clamping operation in two stages to reduce surge voltage. The surge voltage is suppressed in the first stage using a MOV with low operating initiation and clamping voltages.
Jae-Hun Cha, Guangxu Zhou, Sung-Geun Song, Feel-Soon Kang   +3 more
doaj   +1 more source

A Rotor Voltage Compensation Method for Transient Voltage Dip in Grid‐Connected Power Systems With A High Proportion of Renewable Energy Under Ramp‐Type Gradual Disturbance

Engineering Reports, Volume 8, Issue 3, March 2026.
This paper proposes a doubly fed induction generator rotor voltage compensation control to address transient voltage dips in renewable‐rich grids. By compensating for rotor electromotive forces, it suppresses current fluctuations and surges during asymmetrical faults.
Xiaoning Li, Rui Guo, Jun Zhang, Tong Zhang, Xiao Sun   +4 more
wiley   +1 more source

Retificador PWM trifásico de 26KW, três níveis unidirecional, fator de potência unitário e alto rendimento para aplicação em centrais de telecomunicação [PDF]

, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho apresenta o estudo de um retificador para aplicação em centrais de telecomunicações.
Chehab Neto, Anis Cézar
core  

AI‐Driven Optimization Techniques for Power Quality Improvement in Microgrids: Trends, Techniques, and Future Directions

Energy Science &Engineering, Volume 14, Issue 1, Page 583-610, January 2026.
Decentralized energy systems are gaining momentum, and microgrids have become a vital component of the modern power landscape. Yet, maintaining power quality within these systems presents ongoing challenges due to the presence of nonlinear loads, variable renewable energy sources, and frequent switching operations.
Mahnoor Zahid, Hafiz Mudassir Munir, Mohammad Adeel, Fares Suliaman Alromithy, Mohammad R. Altimania, Ievgen Zaitsev   +5 more
wiley   +1 more source

Optimisation and Simulation of RC Time Constants in Snubber Circuits [PDF]

2018 53rd International Universities Power Engineering Conference (UPEC), 2018
Semiconductor devices are subjected to elevated levels of stresses when used at high voltage high current and temperature applications. This stress is mainly due to hard switching which is proportional to the switching frequency. This paper presents methods used to remove this energy to prevent expensive switch damage due to overheating and high dv/dt ...
Mohanram, S, Darwish, M, Marouchos, C
openaire   +2 more sources

Ultra High Step‐Up Soft Switching Converter Based on the Interleaved Structure

Energy Science &Engineering, Volume 14, Issue 1, Page 540-556, January 2026.
The proposed topology provides high voltage gain and enhanced efficiency at low duty cycles, thereby reducing conduction losses in the switches. Its interleaved structure ensures current sharing, while the switches experience both low voltage and low current stress, further decreasing conduction losses.
Mahdi Alizadeh, Majid Delshad, Mohammad Rouhollah Yazdani, Bahador Fani   +3 more
wiley   +1 more source

A DC SSCB With Range-Limited Parallel Operation Switches and a Snubber Circuit Utilizing Inverse Current Injection

IEEE Access
Although many snubber circuits have been studied, research on circuits that effectively suppress surge voltage while supporting bidirectional operation remains relatively limited.
Jae-Seong Jo, Sun-Pil Kim, Sang-Hyeok Lee, Sung-Geun Song, Feel-Soon Kang   +4 more
doaj   +1 more source

An integrated modelling and parameter design method for the RC snubber in novel cascode GaN‐based bridge convertors

IET Power Electronics, 2022
The utilization of novel cascode GaN devices can significantly increase the power density and the efficiency of convertors. However, owing to high switching speed (high dv/dt or di/dt) and inevitable parasitic inductance in device packages and external ...
Bin Luo, Guangzhao Luo, Sihai Li
doaj   +1 more source

High‐Efficiency Cascaded Step‐Up DC–DC Converter With Passive Clamping and Voltage Multiplication

IET Circuits, Devices &Systems, Volume 2026, Issue 1, 2026.
This article presents a novel hybrid coupled‐inductor (CI) cascaded high step‐up (HCICHSU) DC–DC converter tailored for renewable energy systems. The proposed converter achieves ultrahigh voltage gain, low voltage stress on semiconductor devices, and continuous input current by combining buck–boost and boost topologies within a hybrid cascaded ...
Farzad Mohammadzadeh Shahir, Navid Hadifar, NandhaKumar Thulasiraman   +2 more
wiley   +1 more source

RC Snubber Circuit of Large Gap Magnetic Driven System

, 2011
Based on the single chip microcomputer (SCM) control theory, the control circuit of magnetic driving system of axial flow blood pump is designed. For the easy damage of TIP 122, which is used as the power switch of control circuit, RC snubber circuit is ...
Yun Long Liu, Jian Ping Tan, Yan Xu
core   +1 more source