Results 161 to 170 of about 21,927 (209)

A PWM full-bridge converter with natural input power factor correction

PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196), 2002
A pulsewidth modulated (PWM) full-bridge converter that simultaneously performs input power factor correction (PFC) and DC-DC conversion is proposed. The converter is the same as the standard voltage-fed PWM full-bridge converter with a diode-bridge low-pass filter front end, but with a slight modification that results in an improvement in power factor
G. Moscropoulos, null Mei Qiu, H. Pinheiro, null Praveen Jain   +3 more
openaire   +1 more source

A comparative survey of power converter topologies for full-size converter operation of medium-voltage hydropower generators

e & i Elektrotechnik und Informationstechnik, 2019
This paper discusses the challenges for today’s power converter topologies when operating large synchronous motor-generators in pumped storage power plants, which is a medium-voltage high-power application. First, the available ratings and characteristics of the utilized power semiconductor switches are analyzed.
Thomas H. Holzer, Annette Muetze
openaire   +1 more source

A Full-Controlled Bidirectional Dual-Stage Interleaved Converter for Interfacing AC and DC Power Grids [PDF]

Energies
Power grids are progressing, and the possibility of incorporating DC grids toward hybrid AC/DC grids is gaining increasing relevance, as several technologies available nowadays are operating natively in DC.
Vitor Monteiro, João L Afonso, Monteiro Vitor   +2 more
exaly   +3 more sources

Research on Full Bridge Converter of Magnetron Sputtering Power Supply

2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2019
Phase-shifted full bridge(PSFB) topology was used in the main circuit of high-power magnetron sputtering power supply (MSPS), which greatly improves power efficiency by means of soft-switching. The traditional topology has the problems of difficult to realize soft-switching of lag arm, the loss of duty cycle and the large circulation loss.
Xiping Huang, Guitao Chen, Shaohua Cheng, Danyang Ma   +3 more
openaire   +1 more source

Single stage full bridge converter with power factor correction

2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230), 2002
The full-bridge converter with isolation transformer is the preferred topology for medium and high power SMPS. A simple topology modification, i.e. the addition of two input inductors, and appropriate control methods permit simultaneous and accurate control of the output voltage and the input current, performing a new single stage SMPS.
A. Victor, A. Anunciada, R.D. Monteiro
openaire   +1 more source

Analysis of full bridge DC-DC converter in power system

2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011
Isolated dc-dc converter is widely used in power system, especially in green power applications. Compared with the other circuits, full bridge converter is more suitable for power system, where high power and high voltage are involved. This paper proposes the full bridge converter with the uncontrolled rectifier.
Ren Beibei, Wang Dan, Mao Chengxiong, Qiu Jun, Zhao Jiangang   +4 more
openaire   +1 more source

Improvements in the grid connection of renewable generators with full power converters

Renewable Energy, 2012
Abstract The increasing penetration of electricity generation from renewable energy is posing new technical challenges to the operation of power systems. Some of them are related to the different electrical behavior of the generators when compared with traditional directly coupled synchronous generators.
Dionisio Ramirez, Sergio Martinez, Carmelo Carrero, Carlos A. Platero   +3 more
openaire   +1 more source

Boost full bridge DC-DC converter based modular converter for Telecom Power Supplies

2012 IEEE Fifth Power India Conference, 2012
In this paper, a medium power TPS (Telecommunication Power Supply) is designed in DCM (Discontinuous Conduction Mode) using a series combination of IPQCs (Improved Power Quality Converters) namely boost full bridge DC-DC converters with the diode bridge rectifiers at the front end.
Bhim Singh, Shikha Singh, G. Bhuvaneswari   +2 more
openaire   +1 more source

LVRT Control Strategy of Full Power Converter with LCL Filter

2012
In order to enhance the low voltage ride through (LVRT) capability of full power converter, an improved control strategy was proposed. LCL filter was used to reduce the harmonics. An active damping method was introduced for the passive damping producing great quantity losses. A lead-lag element was added to enhance the damping.
Jian Liu, Guijie Yang
openaire   +1 more source

Power control analysis for variable speed pumped storage with full-size converter

IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, 2015
Variable speed pumped storage (VSPS) with full-size converter can be an effective measure for automatic frequency control and balancing renewable generation power fluctuation. This paper mainly studies the modeling and control strategies of both the machine-side and grid-side converter, basing on the structure of VSPS with three-level full-size ...
Xin Chang, Minxiao Han, Chao Zheng
openaire   +1 more source