Results 41 to 50 of about 248,390 (297)

Consensus-Based Intelligent Distributed Secondary Control for Multiagent Islanded Microgrid

International Transactions on Electrical Energy Systems, 2023
Isolated microgrids (MGs) face challenges in performance stability and active/reactive power sharing as a result of frequency/voltage deviations and mismatched line impedance issues. In this paper, a consensus-based multiagent system (MAS) is proposed as
Ali M. Jasim, Basil H. Jasim, Flah Aymen, Hossam Kotb, Ahmed Althobaiti   +4 more
doaj   +1 more source

Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control [PDF]

, 2013
Microgrids are able to provide a coordinated integration of the increasing share of distributed generation (DG) units in the network. The primary control of the DG units is generally performed by droop-based control algorithms that avoid communication ...
De Kooning, Jeroen, Meersman, Bart, Vandevelde, Lieven, Vandoorn, Tine   +3 more
core   +1 more source

A nearly zero-energy microgrid testbed laboratory: Centralized control strategy based on SCADA system [PDF]

, 2020
Currently, despite the use of renewable energy sources (RESs), distribution networks are facing problems, such as complexity and low productivity. Emerging microgrids (MGs) with RESs based on supervisory control and data acquisition (SCADA) are an ...
Carni, D. L., Kermani, M., Manzo, F., Martirano, L., Paolillo, A., Rotondo, S.   +5 more
core   +1 more source

An Improved Droop Control Strategy for Low-Voltage Microgrids Based on Distributed Secondary Power Optimization Control

Energies, 2017
To achieve accurate reactive power sharing and voltage frequency and amplitude restoration in low-voltage microgrids, a control strategy combining an improved droop control with distributed secondary power optimization control is proposed. The active and
Demin Li, Bo Zhao, Zaijun Wu, Xuesong Zhang, Leiqi Zhang   +4 more
doaj   +1 more source

An Efficient Reactive Power Dispatch Method for Hybrid Photovoltaic and Superconducting Magnetic Energy Storage Inverters in Utility Grids

IEEE Access, 2020
The intermittent property and increased grid restrictions have become the most critical elements for increasing penetration levels of clean renewable energy sources (RESs).
Sayed M. Said, Mokhtar Aly, Hartmann Balint   +2 more
doaj   +1 more source

Distributed Nodal Voltage Regulation Method for Low-Voltage Distribution Networks by Sharing PV System Reactive Power

Energies, 2022
With the intensive integration of photovoltaic (PV) sources into the low-voltage distribution networks (LVDN), the nodal voltage limit violations and fluctuation problem cause concerns on the safety operation of a power system.
Xiangdong Wang, Lei Wang, Wenfa Kang, Tiecheng Li, Hao Zhou, Xuekai Hu, Kai Sun   +6 more
doaj   +1 more source

Self-adaptable reactive power-voltage controller for virtual synchronous generators

The Journal of Engineering, 2019
With a higher and higher penetration of renewable energy in the grid, the principle of the virtual synchronous generator (VSG) is proposed as an attractive solution to controlling the grid-connected inverters.
Bo Zhang, Dongxue Li, Yuke Wang, Xiangwu Yan   +3 more
doaj   +1 more source

Frequency support characteristics of grid-interactive power converters based on the synchronous power controller [PDF]

, 2016
Grid-interactive converters with primary frequency control and inertia emulation have emerged and are promising for future renewable generation plants because of the contribution in power system stabilization.
Remón Rodríguez, Daniel, Rodríguez Cortés, Pedro, Zhang, Weiyi   +2 more
core   +2 more sources

Using low bandwidth communication through power lines to enhance reactive power sharing for inverters-based microgrids

International Journal of Electrical Power & Energy Systems
Active and reactive powers should be properly shared among sources to avoid instability problems and to improve reliability in inverter-based micro grids.
Mahmoud AlSadat, Federico Martin Ibanez, Ibrahim Elghanam, Vladimir Terzija   +3 more
doaj   +1 more source

Improved Optimal Control of Transient Power Sharing in Microgrid Using H-Infinity Controller with Artificial Bee Colony Algorithm

Energies, 2022
The microgrid has two main steady-state modes: grid-connected mode and islanded mode. The microgrid needs a high-performance controller to reduce the overshoot value that affects the efficiency of the network.
Mohammed Said Jouda, Nihan Kahraman
doaj   +1 more source