Zobrazeno 1 - 10 of 22 pro vyhledávání: '"Namhun Cho"'
1
Akademický článek
Continuation Power Flow Based Distributed Energy Resource Hosting Capacity Estimation Considering Renewable Energy Uncertainty and Stability in Distribution Systems
Autor: Hyun-Tae Kim, Jungju Lee, Myungseok Yoon, Moon-Jeong Lee, Namhun Cho, Sungyun Choi
Publikováno v: Energies, Vol 13, Iss 17, p 4367 (2020)
Recently, the demand for electricity has been increasing worldwide. Thus, more attention has been paid to renewable energy. There are acceptable limits during the integration of renewable energy into distribution systems because there are many effect
Externí odkaz: https://doaj.org/article/f96798e4a9894b5aaae42695a50c2610
Zobrazit plný text záznamu
2
Akademický článek
Investigation and Optimization of Grounding Grid Based on Lightning Response by Using ATP-EMTP and Genetic Algorithm
Autor: Saeid Gholami Farkoush, Tahir Khurshaid, Abdul Wadood, Chang-Hwan Kim, Kumail Hassan Kharal, Kyu-Ho Kim, Namhun Cho, Sang-Bong Rhee
Publikováno v: Complexity, Vol 2018 (2018)
A large number of electromagnetic transient studies have been analyzed for finding the overvoltage behavior of power system. A grounding grid of power system is so important for reducing the effect of overvoltage phenomena during a short-circuit even
Externí odkaz: https://doaj.org/article/38b21e2d4d894444bcffa9ba32b33908
Zobrazit plný text záznamu
5
Determining the reverse fault current by the type of transformer and Distributed Generation in distribution system during the single-line to ground fault
Autor: Sangwon Yun, Namhun Cho, Jaesung Jung
Publikováno v: Renewable and Sustainable Energy Reviews. 109:102-115
Recent increases in Distributed Generation (DG) into distribution system have led to changes in the conventional protection scheme because of the reverse fault current coming from the DG side. However, it is not yet clear whether the reverse fault cu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fda0c476adec8e83f5250c051e9868bc
https://doi.org/10.1016/j.rser.2019.04.036
Zobrazit plný text záznamu
6
Modified Particle Swarm Optimizer as Optimization of Time Dial Settings for Coordination of Directional Overcurrent Relay
Autor: Tahir Khurshaid, Abdul Wadood, Chang-Hwan Kim, Sang-Bong Rhee, Namhun Cho, Saeid Gholami Farkoush
Publikováno v: Journal of Electrical Engineering & Technology. 14:55-68
The coordination of directional overcurrent relays (DOCR) plays a very important role for maintaining security and enhancing reliability in the electrical power system. This paper presents the coordination of directional overcurrent relay using the m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bec9d64ea4aac021c9c482b7b8f9c03f
https://doi.org/10.1007/s42835-018-00039-z
Zobrazit plný text záznamu
7
Impact of Transformer Topology on Short-Circuit Analysis in Distribution Systems with Inverter-Based Distributed Generations
Autor: Namhun Cho, Myungseok Yoon, Sungyun Choi
Publikováno v: Sustainability; Volume 14; Issue 15; Pages: 9781
Distributed energy resources (DERs), recently introduced into distribution systems, are mainly inverter-based distributed generations (IBDGs), which have different short-circuit behaviors from conventional synchronous-based distributed generations (S
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe3b6624768ed93f3f53cd5a38ce5035
https://doi.org/10.3390/su14159781
Zobrazit plný text záznamu
8
Efficient and Comprehensive Evaluation Method of Temporary Overvoltage in Distribution Systems with Inverter-Based Distributed Generations
Autor: Myungseok Yoon, Namhun Cho, Moonjeong Lee, Sungyun Choi
Publikováno v: Sustainability, Vol 13, Iss 7335, p 7335 (2021)
Sustainability
Volume 13
Issue 13
In general, a temporary overvoltage (TOV) on the healthy phases occurs because of the neutral-shift phenomenon during a single line-to-ground (SLG) fault. The TOV can destroy the insulation of electric devices and cause damage to other equipment and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f07b734440a36b65d8cfe2dfa9439f09
https://www.mdpi.com/2071-1050/13/13/7335
Zobrazit plný text záznamu
9
Fault Analysis Method for Power Distribution Grid with PCS-based Distributed Energy Resources
Autor: Dong-Eok Kim, Namhun Cho
Publikováno v: Journal of Electrical Engineering and Technology. 12:522-532
In this study, we propose a fault analysis method for a power distribution grid with PCSbased DERs. We first explain the characteristics of a PCS-based DER. According to the characteristics, the DER is considered as a current-controlled voltage sourc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9506faf4a0de0c53705a230f5a4df754
https://doi.org/10.5370/jeet.2017.12.2.522
Zobrazit plný text záznamu
10
Improving the Directional Decision Algorithm of Protective Devices for the Increasing Interconnection of Distributed Generation
Autor: Sangwon Yun, Namhun Cho, Jaesung Jung
Publikováno v: 2019 IEEE Power & Energy Society General Meeting (PESGM).
Directional protective devices are utilized for reliable protection coordination in distribution system with Distributed Generation (DG). However, directional decision algorithm of Korea Electric Power Corporation (KEPCO) has found a problem to detec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::985859ca01497422149e82d6e71ce98b
https://doi.org/10.1109/pesgm40551.2019.8973406
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje