TY - GEN
T1 - Evaluating the Stability Impact of the Interconnecting Tie-Line between Coupled Neighboring Microgrids
AU - Shahnia, Farhad
AU - Susanto, Julius
AU - Mahmud, Md Apel
PY - 2018/12/21
Y1 - 2018/12/21
N2 - Even though microgrids are generally assumed to operate either in grid-connected or islanded modes, as a third alternative, neighboring microgrids may couple together provisionally to exchange power. This is helpful for the remote area microgrids when one of these experiences excessive loading or renewable-based generation or during faults in a section of one microgrid (MG) while no utility feeders exist. Such microgrids may also couple temporarily to lessen the overall electricity generation cost or to improve the overall reliability. To facilitate this connection, the neighboring microgrids should have an interlinking line. This paper analyzes the impact of such an interlinking line on the overall stability of those microgrids, and proposes a suitable interconnection, which can improve the stability of the system of coupled microgrids. To this end, first, a small signal stability model of the system is developed. Numerical analyses, realized in MATLAB, are performed for the interconnection of a few sample microgrids, based on which the general recommendations are derived for improving the stability of such systems.
AB - Even though microgrids are generally assumed to operate either in grid-connected or islanded modes, as a third alternative, neighboring microgrids may couple together provisionally to exchange power. This is helpful for the remote area microgrids when one of these experiences excessive loading or renewable-based generation or during faults in a section of one microgrid (MG) while no utility feeders exist. Such microgrids may also couple temporarily to lessen the overall electricity generation cost or to improve the overall reliability. To facilitate this connection, the neighboring microgrids should have an interlinking line. This paper analyzes the impact of such an interlinking line on the overall stability of those microgrids, and proposes a suitable interconnection, which can improve the stability of the system of coupled microgrids. To this end, first, a small signal stability model of the system is developed. Numerical analyses, realized in MATLAB, are performed for the interconnection of a few sample microgrids, based on which the general recommendations are derived for improving the stability of such systems.
KW - Coupled microgrids
KW - Interconnecting tie-lines
KW - Small signal stability analysis
UR - http://www.scopus.com/inward/record.url?scp=85065989742&partnerID=8YFLogxK
U2 - 10.1109/PEDES.2018.8707547
DO - 10.1109/PEDES.2018.8707547
M3 - Conference contribution
AN - SCOPUS:85065989742
T3 - Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
BT - Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
PB - Institute of Electrical and Electronics Engineers Inc.
CY - Piscataway, NJ
T2 - 8th IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
Y2 - 18 December 2018 through 21 December 2018
ER -