Results 61 to 70 of about 102,634 (167)

On-grid and Off-grid Operation of Multi-Input Single-Output DC/DC Converter based Fuel Cell Generation System

Iranian Journal of Electrical and Electronic Engineering, 2009
This paper presents the modeling and simulation of a proton exchange membrane fuel cell (PEMFC) generation system for off-grid and on-grid operation and configuration.
Noroozian, Abedi, B. Gharehpetian, Hosseini   +3 more
doaj  

Enhanced dynamic support strategies of grid-forming-PMSG based on DC-voltagesynchronization: Frequency and Q support perspective

International Journal of Electrical Power & Energy Systems
The DC-Voltage Synchronization based Grid-Forming PMSG has voltage source characteristics, e.g. frequency and reactive power support function, however, the support capability is limited, and the regulation potential is not fully utilized.
Dejian Yang, Tongyu Hu, Taiying Zheng, Minhui Qian, Chaoquan Li, Zhijie Cao, Gangui Yan   +6 more
doaj   +1 more source

Grid-Forming Characterization in DC Microgrids

CoRR
DC microgrids are converter-based electrical networks that are increasingly being used in various applications, including data centers and industrial distribution systems. A central challenge in their operation is maintaining the DC-bus voltage within predefined limits while ensuring overall system stability.
Jovan Krajacic, Ognjen Stanojev, Mario Schweizer, Orcun Karaca, Gabriela Hug, Vladan Lazarevic   +5 more
openaire   +2 more sources

Stepped 2-Level Operation of Three-Port Modular DC/DC Converter Applied in HVDC Application

IEEE Access, 2018
High-voltage dc/dc converter is the key equipment to interconnect high-voltage dc (HVdc) systems with different voltage levels and to build dc grid.
Hongcheng You, Xu Cai
doaj   +1 more source

The Improvement of an Islanding Detection Method Based on the Perturbation Signal in Case of a Multi-Photovoltaic Operation

Applied Sciences, 2019
Islanding phenomenon is one of the consequences of the emergence and development of microgrids in the power system. Injected signal cancellation is a common problem in a multi- distributed generation that has a significant influence on active islanding ...
Thanh Son Tran, Duc Tuyen Nguyen, Goro FUJITA   +2 more
doaj   +1 more source

Development of frequency-dependent DC equivalent models for multi-terminal DC grids

International Journal of Electrical Power & Energy Systems
The emergence of Multi-Terminal DC (MTDC) grids for offshore wind integration introduces challenges in modeling dynamic interactions and ensuring HVDC system stability.
Mohamed Elsodany, Kosei Shinoda, Jing Dai, Seddik Bacha   +3 more
doaj   +1 more source

AI and Machine Learning in V2G technology: A review of bi-directional converters, charging systems, and control strategies for smart grid integration

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Electric Vehicles (EVs) are transforming the transportation sector, and their integration with the grid is crucial for a sustainable energy future. EVs can serve as distributed energy resources, aiding in peak shaving, frequency management, and voltage ...
Nagarajan Munusamy, Indragandhi Vairavasundaram   +1 more
doaj   +1 more source

DC fault current clearance coordinated control strategy for DC grid with hybrid MMC

International Journal of Electrical Power & Energy Systems
For DC grid based on the hybrid modular multilevel converter (MMC), the traditional DC fault current clearance scheme takes a long time and greatly affects the active power transmission.
Shouqi Jiang, Tuo Wang, Guoqing Li, Yechun Xin, Lixin Wang   +4 more
doaj   +1 more source

Unified Iterative Algorithm for Power Flow of AC/DC System with Multi-Type DC Links

CSEE Journal of Power and Energy Systems
As an emerging trend in power grid development, the AC/DC hybrid power grid presents the characteristics of multi-type DC links and large-scale AC/DC interconnection.
Zhiqiang Song, Yaohui Huang, Jianzhong Xu, Chengyong Zhao, Xiufang Jia, Huashi Zhao   +5 more
doaj   +1 more source

Information Structures in AC/DC Grids

2024 IEEE 63rd Conference on Decision and Control (CDC)
The converters in an AC/DC grid form actuated boundaries between the AC and DC subgrids. We show how in both simple linear and balanced dq-frame models, the states on either side of these boundaries are coupled only by control inputs. This topological property imparts all AC/DC grids with poset-causal information structures. A practical benefit is that
openaire   +2 more sources