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Multi-agent system-based microgrid protection using angular variation: An embedded approach
(Elsevier, 2023-07)
Article
Accés restringit per política de l'editorialThis paper presents a new approach for protecting microgrids based on multi-agent systems and using the angular variation of currents. The multi-agent system was structured using a congregation organization with three ... -
Modular impedance modeling and stability analysis of hybrid AC/DC power systems with grid-forming and grid-following converters
(Institute of Electrical and Electronics Engineers (IEEE), 2023-01-01)
Article
Accés obertThe renewable energy resources integrating HVDC transmission systems, consisting of grid-following and grid-forming converters, have complex physical and control dynamic interactions. Although the impedance analysis method ... -
Novel control approach for a hybrid grid-forming HVDC offshore transmission system
(2020-04-03)
Article
Accés obertThis article describes a hybrid topology of high-voltage direct current (HVDC) for offshore wind farms using a series connection of a voltage source converter (VSC) and six-pulse diode rectifier (6P-DR). In this topology, ... -
Selective nonunit protection technique for multiterminal VSC-HVDC grids
(Institute of Electrical and Electronics Engineers (IEEE), 2018-10)
Article
Accés obertThe development of multiterminal voltage-source converters high-voltage direct current (VSC-HVDC) grids poses a new challenge: A fast and selective protection algorithm for such grids must be implemented. Therefore, this ... -
Short-circuit analytical model for modular multilevel converters considering DC cable capacitance
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Article
Accés obertDeveloping analytical short-circuit models for Modular Multilevel Converters (MMC) is not straightforward due to their switching and blocking characteristics. Short-circuit models for MMCs have been developed previously ... -
Distance protection algorithm for multiterminal HVDC systems using the Hilbert–Huang transform
(2020-08)
Article
Accés obertMultiterminal high-voltage direct current (HVDC) systems still need advances in terms of protection in order to improve their reliability. In this context, the distance protection can play a major role by adding selectivity ... -
Control-based fault current limiter for modular multilevel voltage-source converters
(Elsevier, 2020-06)
Article
Accés restringit per política de l'editorialThe sharp rise in short-circuit currents of voltage-source converters is still a challenge for DC grid reliability, which imposes stringent requirements on DC breakers. Therefore, fault current limiters are used for slowing ... -
Design and evaluation of low voltage neural network-based state estimators in scenarios with minimal measurement infrastructure
(Institute of Electrical and Electronics Engineers (IEEE), 2024-01-01)
Article
Accés obertLearning-based state estimators can represent a cost-effective opportunity for distribution system operators to perform grid monitoring and control in low-voltage grids where the measuring infrastructure is minimal, if not ... -
A secure dual-layer fault protection strategy for distribution network with DERs: enhancing security in the face of communication challenges
(Multidisciplinary Digital Publishing Institute (MDPI), 2024-02-01)
Article
Accés obertEarlier protection methods mainly focused on using communication channels to transmit trip signals between the protective devices (PDs), with no solutions provided in the case of communication failure. Therefore, this paper ... -
Preventing loss of synchronism of droop-based grid-forming converters during frequency excursions
(Elsevier, 2023-06)
Article
Accés obertThis short communication addresses the risk of synchronisation loss during frequency excursions for droop-based grid-forming converters when active power limitations are considered. The synchronising capability of this ... -
Analysis of signal processing techniques for high impedance fault detection in distribution systems
(Institute of Electrical and Electronics Engineers (IEEE), 2021-12)
Article
Accés restringit per política de l'editorial -
An approximated analytical model for pole-to-ground faults in symmetrical monopole MMC-HVDC systems
(Institute of Electrical and Electronics Engineers (IEEE), 2021-12)
Article
Accés obertDeveloping pole-to-ground (PG) fault models for Modular Multilevel Converters (MMC) is not straight forward due to the fault asymmetry and converter switching concerning blocking characteristics. Various studies have been ...