Results 1 to 10 of about 188,865 (243)

A negative sequence current injection (NSCI)-based active protection scheme for islanded microgrids

open access: yesInternational Journal of Electrical Power & Energy Systems
The 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
doaj   +6 more sources

A Negative-sequence Current Injection Method to Mitigate Voltage Imbalances in Microgrids [PDF]

open access: yesEletrônica 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

Influence of Negative Sequence Injection Strategies on Faulted Phase Selector Performance

open access: yesEnergies, 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   +3 more sources

Phasor-domain Dynamic Model of Asymmetric Current Injection Controller for Converter-interfaced Generator

open access: yesJournal 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]

open access: yes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

A Robust Vector Current Controller with Negative-Sequence Current Capability for Grid-Connected Inverters

open access: yesEnergies, 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
doaj   +1 more source

Development of a Novel Control Scheme for Grid-Following Converter under Asymmetrical Faults

open access: yesEnergies, 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

Development of a Novel Control Scheme to Achieve the Minimum Unbalance Factor and Real Power Fluctuations under Asymmetrical Faults

open access: yesEnergies, 2023
The increasing share of converter-based renewable energy sources in the power system has forced the system operators to demand voltage support from the converters in case of faults.
Muhammad Abubakar   +2 more
doaj   +1 more source

Analysis of unbalanced clustered voltage and control strategy of clustered voltage balancing for cascaded H-bridge STATCOM

open access: yesJournal of Modern Power Systems and Clean Energy, 2019
To explore the clustered voltage balancing mechanism of the cascaded H-bridge static synchronous compensator (STATCOM), this paper analyzes the causes of unbalanced clustered voltage. The negative-sequence current caused by the compensation of unbalanced
Yu Jin   +4 more
doaj   +1 more source

Power Capability Boundaries for an Inverter Providing Multiple Grid Support Services

open access: yesEnergies, 2020
It is getting more common every day to install inverters that offer several grid support services in parallel. As these services are provided, a simultaneous need arises to know the combined limit of the inverter for those services. In the present paper,
Markel Zubiaga   +5 more
doaj   +1 more source

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