Results 1 to 10 of about 441,873 (190)
Synchronous Power Control of Grid-Connected Power Converters under Asymmetrical Grid Fault [PDF]
Energies, 2017 Control of grid-connected power converters is continuously developing to meet the grid codes, according to which the generation units should keep connected to the grid and further provide ancillary services, such as voltage and frequency support ...
Weiyi Zhang +3 more
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A Negative-sequence Current Injection Method to Mitigate Voltage Imbalances in Microgrids [PDF]
Eletrônica de Potência, 2011 This paper proposes a control strategy to reduce the voltage imbalances by injection of a proper negative-sequence current into the microgrid. This task can be done by each inverter connected to the microgrid in a shared way.
Gustavo M. S. Azevedo +4 more
doaj +2 more sources
A negative sequence current injection (NSCI)-based active protection scheme for islanded microgrids
International Journal of Electrical Power & Energy SystemsThe growing penetration of converter interfaced generation creates unprecedented challenges to protection strategies at all voltage levels. This paper proposes a novel Negative Sequence Current Injection (NSCI)-based active protection scheme for islanded
Zhenkun Yang +2 more
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Journal of Modern Power Systems and Clean Energy, 2021 This paper presents a controller model of asymmetric current injection for converter-interfaced generators suitable for root-mean-square (RMS) phasor-domain, fundamental-frequency, three-phase, and dynamic simulation tools.
Victor A.F. Almeida +2 more
doaj +1 more source
A low voltage ride-through control method of IIDG considering multiple control targets [PDF]
电力工程技术, 2022 There are some disadvantages in existing inverter-interfaced distributed generators (IIDG) low voltage ride-through control methods,such as unsatisfactory voltage support effects,single control objectives,and the risk of over-limiting the output current.
HE Jin +5 more
doaj +1 more source
Influence of Negative Sequence Injection Strategies on Faulted Phase Selector Performance
Energies, 2022 Renewable power is expected to increase drastically in the coming years due to the energy transition. A large part of the newly installed generators will be connected to the power system through inverters and electronic converters, whose behaviour ...
María Teresa Villén +3 more
doaj +1 more source
Energies, 2021 This paper presents a vector current controller (in the synchronous reference, or the dq, frame) with negative-sequence current injection capability for three-phase grid-connected converters.
Houshang Karimi +3 more
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A computationally efficient current controller for simultaneous injection of both positive and negative sequences [PDF]
2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017 This work was supported by the Research Promotion Foundation (RPF, Cyprus, Project KOINA/SOLAR-ERA.NET/1215/06), by the Ministry of National Infrastructure Energy and Water (Israel) and the SOLAR-ERA.NET (European Union's Seventh Framework Programme). © 2017 IEEE. Personal use of this material is permitted.
Ali, Zunaib +3 more
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Development of a Novel Control Scheme for Grid-Following Converter under Asymmetrical Faults
Energies, 2023 With the increasing penetration of converter-based power sources into the power system, the performance of the converter has become a key factor for enhancing grid reliability, especially during asymmetrical faults.
Muhammad Abubakar +2 more
doaj +1 more source
Control aspects of the dynamic negative sequence current injection of type 4 wind turbines [PDF]
2014 IEEE PES General Meeting | Conference & Exposition, 2014 State-of-the-art distributed generation with a fully rated converter only injects positive sequence current into unbalanced faults. Recently, both publications and draft standards have suggested that the injection of negative sequence reactive current into unbalanced faults can have benefits for the power system.
Wijnhoven, Thomas +3 more
openaire +2 more sources