Results 181 to 190 of about 5,321 (221)

Overvoltage Suppressing Snubber Circuit for Solid State Circuit Breaker considering System Inductances

2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia), 2019
Because of nature of the DC power distribution system, such as existence of power electronic converters with DC link capacitors and low system inductance, it has been known that the protection of DC system against short circuit fault would be difficult compared to AC system. The solid state circuit breaker (SSCB) is one of candidates for solution of DC
Donghoon Park, Dongho Shin, Seung-Ki Sul, Jungwook Sim, Young-Geun Kim   +4 more
openaire   +1 more source

RC Snubber Circuit Design for ITER PF Converter Module

Journal of Fusion Energy, 2014
The proper RC snubber circuit is of great importance to protect the thyristor against overvoltage during the turn-off process. This paper mainly presents the design of commutating over-voltage RC snubber circuit for ITER poloidal field (PF) converter module.
Zhiquan Song, Fengwei Zha, Peng Fu, Jinchao Li, Lin Dong, Min Wang, Tongzhen Fang   +6 more
openaire   +1 more source

Snubber circuits and losses of voltage-source GTO inverters

IEEE Transactions on Power Electronics, 1992
The power dissipation of series and parallel snubbers in gate turn-off thyristor (GTO) inverters is investigated. New circuits using optimized snubbers are simulated and compared and solutions that allow the recovery of the energy stored in the snubbers are reported.
BRAMBILLA, ANGELO MAURIZIO, E. Dallago
openaire   +1 more source

RC Snubber Circuit of Large Gap Magnetic Driven System

Applied Mechanics and Materials, 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 designed by analysis and experiments. And then an optimal matching of the key parameters is obtained
Yun Long Liu, Jian Ping Tan, Yan Xu
openaire   +1 more source

Dual-inductive snubber circuit design for three-level inverter

2007 European Conference on Power Electronics and Applications, 2007
A new circuit design for the protection of e.g. multi level converters will be presented in this paper. The so-called 'dual-inductive snubber circuit design for three-level converter' will optimize the number of the total snubber circuit elements and the behavior RCD/RLD snubber circuit especially in the direction of over-voltage and over-current, and ...
J. Al-Nasseir, Ch. Weindl, G. Herold
openaire   +1 more source

A Brief Review of Snubber Circuits for Flyback Converter

2018 3rd International Conference for Convergence in Technology (I2CT), 2018
This paper reviews the different snubber circuit topologies for flyback converters. At low power levels, flyback converters are required to operate at fast switching frequencies to achieve higher power densities, low flux linkage and reduced converter size. However, at high frequencies, switching losses in flyback converters increase along with voltage
Sayeb Mohammad Tadvin, Sayed Rafay Bin Shah, Mohammad Rubaiyat Tanvir Hossain   +2 more
openaire   +1 more source

A new snubber circuit for multilevel inverter and converter

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242), 2002
This paper proposes a new snubber circuit for multilevel inverter and converter. The snubber circuit makes use of the Undeland snubber as a basic snubber unit and can be regarded as a generalized Undeland snubber. The proposed snubber keeps such good features as fewer number of components, improved efficiency due to low loss snubber, capability of ...
null In-Dong Kim, null Eui-Cheol Nho, B.K. Bose   +2 more
openaire   +1 more source

Research on a novel active snubber circuit

6th International Conference on Power Electronics and Variable Speed Drives, 1996
In this paper a novel active snubber circuit is proposed, which is formed by introducing an active transistor to the traditional snubber circuit. The active transistor shares the control signal of the main power transistor. The snubber circuit can soften the switching process and make high-frequency-operation and high efficiency possible. The simulated
openaire   +1 more source

Snubber circuit for diode-clamped four-levelinverter and converter

IEE Proceedings - Electric Power Applications, 2001
The snubber circuit makes use of Undeland and McMurray snubbers in the basic snubber unit, and can be regarded as a generalised combined Undeland and McMurray snubber. The proposed snubber features fewer components, improved efficiency due to low snubber loss, overvoltage clamping across main switching devices, and no imbalance problem of the blocking ...
I.-D. Kim, E.-C. Nho, J.-S. Ko
openaire   +1 more source

Snubber Circuit of Bidirectional Solid State DC Circuit Breaker Based on SiC MOSFET

2018 IEEE Energy Conversion Congress and Exposition (ECCE), 2018
This paper focuses on the design of a snubber circuit for Solid State Circuit Breaker (SSCB) based on SiC MOSFET. It analyzes the operation principle and pros and cons of existing snubber circuit. Based on the analysis, a novel bidirectional snubber circuit suppressing fault current quickly and simultaneously protecting overvoltage on SiC MOSFET is ...
Dongho Shin, Seung-Ki Sul, Jungwook Sim, Young-Geun Kim   +3 more
openaire   +1 more source