Results 1 to 10 of about 13,897 (196)
An Analysis of Voltage Quality in a Nanogrid during Islanded Operation
Energies, 2019 Voltage quality data has been collected in a single house nanogrid during 48 weeks of islanded operation and 54 weeks of grid-connected operation. The voltage quality data contains the voltage total harmonic distortion (THD), odd harmonics 3 to 11 and 15,
Jakob Nömm +2 more
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Energies, 2010 One of the most important requirements of microgrid operation is to maintain a constant frequency such as 50 Hz or 60 Hz, which is closely related to a power balance between supply and demand.
Myong-Chul Shin +2 more
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IEEE Access, 2020 The existing distributed operation schemes for microgrids lack the ability to determine the power selling to the grid during normal operation mode and are unable to provide service reliability to critical loads, during islanded operation mode.
Haesum Ali +3 more
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Comparative optimization of overcurrent relay coordination in DG-integrated distribution networks: water cycle algorithm versus genetic algorithm and big bang–big crunch [PDF]
Scientific ReportsThe increasing penetration of distributed generation (DG) has significantly complicated protection coordination in modern distribution networks by introducing bidirectional power flows and variable fault current levels.
Reda E. Mohamed +2 more
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An experimental case on dual mode coupling energy management strategy for islanded AC/DC hybrid microgrid [PDF]
Scientific ReportsThe limited adjustable margin of the islanded AC/DC hybrid microgrid makes it difficult to both balance economic and stability. Therefore, an energy management strategy that can effectively harmonize economic and stability is highly desirable. In view of
Bin Wei, Yifan Liu, Jiahao Duan
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New control paradigm for both islanded and grid-connected operation of PMSG-based wind turbine
The Journal of Engineering, 2019 This article proposes a new control paradigm for the seamless operation of a permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS) in both islanded and grid-connected modes.
Muftau O. Baruwa +2 more
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Optimal Allocation and Operation of Droop-Controlled Islanded Microgrids: A Review
Energies, 2021 This review paper provides a critical interpretation and analysis of almost 150 dedicated optimization research papers in the field of droop-controlled islanded microgrids. The significance of optimal microgrid allocation and operation studies comes from
Maen Z. Kreishan, Ahmed F. Zobaa
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Energies, 2018 Frequency, voltage and reliability data have been collected in a nanogrid for 48 weeks during islanded operation. Frequency values from the 48 week measurements were analyzed and compared to relevant limits. During 19.5% of the 48 weeks, the nanogrid had
Jakob Nömm +2 more
doaj +3 more sources
Economic operation of islanded micro-grids via modified active disturbance rejection control
International Journal of Electrical Power & Energy SystemsThe islanded micro-grid is playing a more and more significant role to absorb more wind and solar energy because of its advantages such as flexibility, cleanliness and environmental friendliness.
Zhenlong Wu +3 more
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Hierarchical Predictive Control of Microgrids in Islanded Operation
IEEE Transactions on Automation Science and Engineering, 2017 This paper presents a hierarchical control architecture for the regulation of frequency and nodal voltages of a microgrid in islanded operation. Considering systems with both dispatchable and nondispatchable generation, as well as noncontrollable loads, the suggested approach allows to coordinate the MG devices in order to maintain the network ...
Alessio La Bella +2 more
exaly +3 more sources