Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Ulas Karaagac"'
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 454-459 (2023)
The electromagnetic transient (EMT)-type impedance scanning methods conducted in positive sequence domain and dq-frame (p-scan and dq-scan, respectively) have been widely used for identifying inverter-based resource (IBR) instabilities. They obtain t
Externí odkaz:
https://doaj.org/article/03749e230a2047e2b73ad892e442e346
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 448-453 (2023)
This article proposes a novel Solid-State Transformer (SST) power flow (PF) model which is implemented with Modified Augmented Nodal Analysis (MANA) formulation using Newton-Raphson (NR) algorithm. Any network topology can be handled by the MANA form
Externí odkaz:
https://doaj.org/article/3ea86ff8381b4514905740ac6b581745
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 920-929 (2023)
Impedance-based stability analysis (IBSA) is an effective method to analyze the interaction problem between the doubly-fed induction generator-based wind park (DFIG-WP) and series compensated or weakly tied AC grids. The analytical impedance model of
Externí odkaz:
https://doaj.org/article/630489949a8545d7a02f313a4fb38666
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 951-961 (2023)
This research proposes a load flow (LF) solver with DC/DC converter models for DC distribution. The solver is based on modified-augmented-nodal-analysis (MANA) formulation and is implemented with the Newton–Raphson (NR) algorithm. The conditions to
Externí odkaz:
https://doaj.org/article/e9123438e08f49558faaf0c4c214ddf8
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 748-756 (2023)
Impedance-based stability analysis (IBSA) is an effective method to identify subsynchronous interaction (SSI) problem between the inverter-based resources (IBRs) and series compensated or weakly tied AC grids. The electromagnetic transient (EMT) leve
Externí odkaz:
https://doaj.org/article/6ef74f0dbd9d4b798fe54810703976c1
Publikováno v:
Energies, Vol 17, Iss 8, p 1822 (2024)
This manuscript presents a comprehensive review of recent advancements in electrical distribution networks, with a specific focus on the incorporation of direct current (DC) applications. The research aims to comprehensively address the current and f
Externí odkaz:
https://doaj.org/article/4f5a9787ec4b437294fc12f8b8e41ff6
Publikováno v:
IEEE Access, Vol 11, Pp 141740-141752 (2023)
Doubly-fed induction generator-based wind park (DFIG-WP) can interact with both series-capacitor compensated and weak (low short circuit ratio) grids, thus causing instability, and called as series-capacitor sub-synchronous oscillation (SSO) and weak
Externí odkaz:
https://doaj.org/article/11c9d4ee7cd74a65945129dcfc302dfb
Autor:
Lei Meng, Ulas Karaagac, Mohsen Ghafouri, Anton Stepanov, Jean Mahseredjian, Ka Wing Chan, Ilhan Kocar
Publikováno v:
IEEE Access, Vol 11, Pp 132822-132832 (2023)
This paper demonstrates the risk of a new control interaction phenomenon between a large-scale type-4 wind park (WP) and a 500 kV transmission grid in a super-synchronous frequency range. This study aims at (i) using the impedance-based stability ass
Externí odkaz:
https://doaj.org/article/0bb2e55dc3494da991cabe941c502381
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 528-537 (2022)
Distribution networks feature distinct topologies than transmission networks, such as radial or weakly meshed structures with tens of thousands of nodes. They have more points of power injection owing to the integration of distributed generators and
Externí odkaz:
https://doaj.org/article/b3d2724a3ca84eb4a501b76814991a19
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 10, Iss 2, Pp 502-514 (2022)
The doubly-fed induction generator (DFIG) is considered to provide a low-reactance path in the negative-sequence system and naturally comply with requirements on the negative-sequence reactive current in emerging grid codes. This paper shows otherwis
Externí odkaz:
https://doaj.org/article/e141b26a83034fab9c59d257cd321807