Results 131 to 140 of about 102,634 (167)
Some of the next articles are maybe not open access.
DC bus strength in DC grid protection
2017 International Symposium on Power Electronics (Ee), 2017Fast detection and isolation of DC faults is recognized as the main challenge in developing DC transmission grids. Voltage source converter blocking must be prevented which can be very difficult given the large rate-of-rise of fault currents. The concept of multi-converter DC bus is introduced as a grid design approach aimed towards increasing ...
Mario Zaja, Dragan Jovcic, Masood Hajian
openaire +1 more source
Cascaded Interleaved DC–DC Converter Designed for Grid-to-Vehicle and Vehicle-to-Grid Technologies
Journal of Control, Automation and Electrical Systems, 2021This paper presents a study of a cascaded bidirectional interleaved DC–DC converter applied to an electric charging station, which uses grid-to-vehicle (G2V) and vehicle-to-grid (V2G) technologies. In this context, the interleaved technique is used to reduce the current ripple through the battery of the electric vehicle (EV), which can also absorb or ...
Wagner C. Leal +10 more
openaire +1 more source
The Status of DC Micro-Grid Protection
2008 IEEE Industry Applications Society Annual Meeting, 2008AC microgrids are a convenient approach to integrating distributed energy systems with utility power systems. On the other hand, DC micro-grids can lead to more efficient integration of distributed generation. They are the preferred topology for present shipboard, aircraft and automotive power systems and hold promise for future environmentally ...
Robert M. Cuzner, Giri Venkataramanan
openaire +1 more source
Impact of DC-DC Converters for DC Grid Voltage Support
2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2), 2019Modern power system is undergoing a gradual change from conventional sources of energy to renewable sources. This change requires restructuring of the power system so as to support the integration without compromising the security and stability. The power system itself is divided into smaller subsystems and the operation of these subsystems which are ...
Salman Salman +4 more
openaire +1 more source
The Research of the Photovoltaic DC Grid-Connected Converter Applied in Flexible DC Grid
Applied Mechanics and Materials, 2014With the rapid development of flexible HVDC technology in China, the demand for the DC grid of new energy generation projects growth. This paper studies the topology of the DC grid photovoltaic converter, a topological scheme is proposed and detailed analysis of the topology of the work mode is presented.
Chang Bin Ju +3 more
openaire +1 more source
Two-input DC-DC converter for DC-Grid applications
2012 IEEE Fifth Power India Conference, 2012A new two-input DC-DC converter suitable to draw power from two different dc sources feeding a common dc-bus is presented in this paper. This is a two-switch converter belongs to sixth-order family and performs bucking operation for one dc source while it allows both bucking as well as boosting feature with the second source. The salient feature of the
M. Veerachary +2 more
openaire +1 more source
DC/dc converters for interconnecting independent HVDC systems into multiterminal DC grids
2015 IEEE 13th Brazilian Power Electronics Conference and 1st Southern Power Electronics Conference (COBEP/SPEC), 2015Future multi-terminal HVDC (MTDC) grids will be based on Voltage Source Converter (VSC) technology. However, existing and planned VSC HVDC connections for offshore wind farms and cross-border interconnections are mainly point-to-point links which are operated at different voltages and can have different grounding schemes.
Kolparambath S K, Suul J A, Tedeschi E
openaire +1 more source
A Review of DC Micro-grid Protection
2013In this paper, an overview of DC micro-grid is described, which includes the status of DC micro-grid protection and its future development. The paper presents the key techniques of DC micro-grid protection. So far, standards, guidelines and techniques for DC micro-grid protection are well behind AC system.
Yuhong Xie +4 more
openaire +1 more source
DC/DC converter for high power DC grids
The present invention relates to a DC/DC converter which comprises a first bridge (Bridge 1) for connection via an inductor (L1) to a first DC power source (V1) and a second bridge (Bridge 2) for connection via an inductor (L2) to a second DC power source (V2). An AC transformer connecting the first and second bridges.Aboushady, Ahmed Adel Hassan Hassanein +1 more
openaire