Results 11 to 20 of about 1,304,670 (305)

Two-Port Characterization and Transfer Immittances of AC-DC Converters–Part II: Applications

open access: yesIEEE Open Journal of Power Electronics, 2021
This two-part paper presents a general method to model three-phase ac-dc converters as two-port networks for power system stability studies. Part I of the work has developed the two-port network models and identified two types of transfer characteristics
Jian Sun
doaj   +1 more source

Power Quality in DC Power Distribution Systems and Microgrids

open access: yesEnergies, 2015
This review paper discusses power quality considerations for direct current (DC) electric power distribution systems, particularly DC microgrids. First, four selected sample DC architectures are discussed to provide motivation for the consideration of ...
Stephen Whaite   +2 more
doaj   +1 more source

Hybrid Feedback Control Methods for Robust and Global Power Conversion [PDF]

open access: yes, 2015
In this paper, the applicability and importance of hybrid system tools for the design of control algorithms for energy conversion in power systems is illustrated in two hybrid control designs, one pertaining to DC/DC conversion and the other to DC/AC ...
Chai, J, Sanfelice, RG
core   +1 more source

Online dynamic voltage stability assessment method of AC/DC power systems

open access: yesThe Journal of Engineering, 2018
The reactive power absorption of conventional line commutated converter–high-voltage direct current transmission systems challenges on the voltage stability of AC/DC power systems. Many online dynamic voltage stability assessment approaches have been put
Yongbo Wang   +5 more
doaj   +1 more source

Medium‐voltage DC electric railway systems: A review on feeding arrangements and power converter topologies

open access: yesIET Electrical Systems in Transportation, 2022
Medium‐voltage DC (MVDC) electric railway systems have several advantages over conventional DC and AC railway electrification systems. These advantages include higher capacity, possibility of connecting to power networks at lower voltage, removal of ...
Sina Sharifi   +4 more
doaj   +1 more source

Comparative Assessment of Multi-Port MMCs for High-Power Applications

open access: yesIEEE Access, 2022
Multi-port converters can interconnect different dc and ac systems while reducing semiconductor requirements and losses by eliminating redundant power conversion stages.
Yuan Li, Gregory J. Kish
doaj   +1 more source

Active distribution power system with multi-terminal DC links [PDF]

open access: yes, 2015
A fast power restoration operational scheme and relevant stabilizing control is proposed for active distribution power systems with multi-terminal DC network in replacement of the conventional normal open switches. A 9-feeder benchmark distribution power
Chen, Dong, Xu, Lie, Zhang, Wendian
core   +2 more sources

Overview of Basic Characteristics and Application Modes of DC Power Transmission [PDF]

open access: yesDianli jianshe
[Objective] DC power transmission technology is crucial in constructing new energy power systems. Exploration of novel applications of DC power transmission necessitate a deeper understanding and more comprehensive analyses of its underlying physical ...
XU Zheng
doaj   +1 more source

Multilevel DC–DC Power Conversion System With Multiple DC Sources [PDF]

open access: yesIEEE Transactions on Power Electronics, 2008
A multilevel DC-DC power conversion system with multiple DC sources is proposed in this paper. With this conversion system, the output voltage can be changed almost continuously without any magnetic components. With this magnetic-less system, very high temperature operation is possible.
Miaosen Shen   +2 more
openaire   +2 more sources

Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]

open access: yes, 2011
A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy