Results 21 to 30 of about 44,201 (267)
Energies, 2023 The single pole-to-ground (SPG) fault is one of critical failures which will have a serious impact on the stable operation of the multi-terminal DC distribution network based on the modular multilevel converter (MMC).
Ruixiong Yang +5 more
doaj +1 more source
Energy Reports, 2023 With rapid development of HVDC transmission system, the coupling relationship between the AC and DC power grid has become increasingly stronger. Especially, the problem of voltage instability is prominent in HVDC receiving-end system, the dynamic ...
Fan Xiao +5 more
doaj +1 more source
Flexible Control of Power Flow in Multiterminal DC Grids Using DC–DC Converter [PDF]
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2016 This paper proposes an efficient control framework that utilizes dc-dc converters to achieve flexible power flow control in multiterminal dc (MTDC) grids. The dc-dc converter employed in this paper is connected in cascade with the dc transmission line, and is therefore named cascaded power flow controller (CPFC).
Rouzbehi, Kumars +4 more
openaire +3 more sources
Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operation [PDF]
E3S Web of Conferences, 2020 Nowadays, distributed generation technology is of great help to the efficient utilization of new energy. If the distributed power supply is connected to the DC micro-grid, it will be more secure and reliable.
Yan Xiangyang +6 more
doaj +1 more source
e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023 The flow of quasi-DC or DC in AC networks may trigger half-cycle saturation of electrical grid transformers that could lead to their internal heating or grid collapse.
Moazzam Nazir +2 more
doaj +1 more source
AIP Advances, 2023 This paper analyzes an accident of abnormal increase of pole bus differential current and pole differential current of a converter station caused by line fault of a ±800 kV extra high-voltage direct current transmission project.
Xingyang Hu +5 more
doaj +1 more source
Research on DC grid control and analysis method based on pilot voltage
The Journal of Engineering, 2019 DC voltage control is one of the key technologies of DC power grid operating control. Here, the local voltage measurement is replaced by the pilot voltage in traditional droop control, and the droop control based on the pilot voltage is applied to the DC
He Wang +4 more
doaj +1 more source
Real Time Simulation of Power Electronics Medium Voltage DC-Grid Simulator
Energies, 2021 Power electronics medium-voltage (MV) systems must comply with the requirements defined in grid codes. These systems’ compatibility with the standards can be validated by specialized testing equipment: grid simulators.
Piotr Sobanski +5 more
doaj +1 more source
Zhongguo dianli, 2023 Inevitably China will encounter the enormous demand of large-capacity power transmission over long-distance transmission from the west to the east in the future.
Huiling LI
doaj +1 more source
Zhongguo dianli, 2019 With the development of flexible DC technology, the construction of source-grid -load in distribution network is greatly enriched, and the new-type grid models become possible such as centralized photovoltaic DC grid-connection and DC power supply for ...
Zhaoxiang YANG +3 more
doaj +1 more source