Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Yeong-Han Chun"'
Autor:
Sung-Eun Kim, Yeong-Han Chun
Publikováno v:
Energies, Vol 17, Iss 5, p 1120 (2024)
This study presents a novel approach to modeling linearized inertia constraints of generators, considering frequency stability, and applies it to the unit commitment (UC). Specifically, we modeled the average rate of change of frequency (RoCoF) const
Externí odkaz:
https://doaj.org/article/956fce1282a3468694ab96c67d6c77d3
Publikováno v:
Energies, Vol 15, Iss 7, p 2386 (2022)
The Korean government has declared the goal of net-zero-carbon emissions with a focus on renewable energy expansion. However, a high proportion of baseload generators and an increasing proportion of variable renewable energy (VRE) may cause problems
Externí odkaz:
https://doaj.org/article/a2c9ac58602f4285aef721f5dbf9e32f
Autor:
Sung-Eun Kim, Yeong-Han Chun
Publikováno v:
Energies, Vol 14, Iss 18, p 5961 (2021)
In recent years, the need for generation mixes that consider the inertial constraints in unit commitment (UC) has increased because the inertia of these systems has decreased with the increased use of renewable energy. In these circumstances, single-
Externí odkaz:
https://doaj.org/article/355cdca964f04777ae41ab4ea0d1f2ff
Autor:
Ha-Lim Lee, Yeong-Han Chun
Publikováno v:
Energies, Vol 11, Iss 9, p 2468 (2018)
When operating a stand-alone micro grid, the battery energy storage system (BESS) and a diesel generator are key components needed in order to maintain demand-supply balance. Using Unit Commitment (UC) to calculate the optimal operation schedule of a
Externí odkaz:
https://doaj.org/article/c4321b1a90144124ab0ae16d95165447
Autor:
Yeong-Han Chun, Sung-Eun Kim
Publikováno v:
Journal of Electrical Engineering & Technology. 14:1055-1061
To calculate the transmission loss factor at each generator bus, repeated power flow calculations should be performed for each generator bus. The full AC power flow calculation produces precise results but, the size of the Jacobian matrix is large an
Autor:
Yeong-Han Chun, Seung-Hoon Jeong
Publikováno v:
The Transactions of The Korean Institute of Electrical Engineers. 66:1-6
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 465:13-24
In this work, we present topological and resilience analyses of the South Korean power grid (KPG) with a broad voltage level. While topological analysis of KPG only with high-voltage infrastructure shows an exponential degree distribution, providing
Publikováno v:
KEPCO Journal on Electric Power and Energy. 2:115-119
Autor:
Hyeok-Mo Jeon, Yeong-Han Chun
Publikováno v:
The Transactions of The Korean Institute of Electrical Engineers. 65:1-8
The characteristics of Korean power systems are large capacity of generation sites and concentrated load in Seoul metropolitan area. According to the national generation facility plan, more generation facilities are needed to be constructed as the el
Publikováno v:
Journal of Electrical Engineering and Technology. 10:1363-1369
The frequency of a power system should be maintained within the allowed limits for stable operation. When a disturbance such as generator tripping occurs in a power system, the frequency is recovered to the nominal value through the inertial, primary