TY - JOUR
T1 - Enhancing line capacity utilization in power transmission system using active MVDC Link
AU - Han, Changhee
AU - Song, Sungyoon
AU - Kim, Juyong
AU - Jang, Gilsoo
N1 - Funding Information:
Acknowledgments: This work was supported by National Research Foundation of Korea (No.2017K1A4A3013579) and “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea (No.20174030201540).
Publisher Copyright:
© 2019 by the authors.
PY - 2019
Y1 - 2019
N2 - As a proportion of generation using renewable energy increases in a power system, the need for facility investment is increasing in not only the distribution system but also the transmission system. However, it is ineffcient to invest in new equipment to deal with the short peak output of renewable energy generation. For this reason, this paper proposes a method for operating the grid more flexibly, through an optimal operating strategy of the direct current (DC) line at medium-voltage (MV) level, thereby delaying the facility investment in the transmission line. In order to determine the optimal operating point of the converter connected with a DC line, the swarm intelligence-based optimization technique, which can minimize multi-objective function, is used. In addition, in order to overcome the communication dependency of the centralized control, which needs to receive information about the optimal operating point computed by the system operator, this paper proposes a decentralized emergency control (DEC) method in case of a communication fault.
AB - As a proportion of generation using renewable energy increases in a power system, the need for facility investment is increasing in not only the distribution system but also the transmission system. However, it is ineffcient to invest in new equipment to deal with the short peak output of renewable energy generation. For this reason, this paper proposes a method for operating the grid more flexibly, through an optimal operating strategy of the direct current (DC) line at medium-voltage (MV) level, thereby delaying the facility investment in the transmission line. In order to determine the optimal operating point of the converter connected with a DC line, the swarm intelligence-based optimization technique, which can minimize multi-objective function, is used. In addition, in order to overcome the communication dependency of the centralized control, which needs to receive information about the optimal operating point computed by the system operator, this paper proposes a decentralized emergency control (DEC) method in case of a communication fault.
KW - Medium voltage direct current
KW - Multi-objective optimization
KW - Operation strategy
KW - Voltage source converter
UR - http://www.scopus.com/inward/record.url?scp=85065999090&partnerID=8YFLogxK
U2 - 10.3390/en12091589
DO - 10.3390/en12091589
M3 - Article
AN - SCOPUS:85065999090
SN - 1996-1073
VL - 12
JO - Energies
JF - Energies
IS - 9
M1 - 1589
ER -
