TY - GEN
T1 - A Comparison of Voltage Stability Indices for Critical Node Identification in a Power System
AU - Adebayo, Isaiah G.
AU - Sun, Yanxia
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/1/21
Y1 - 2021/1/21
N2 - Recent incidence of voltage collapse in some developed and developing nations across the globe has caused a huge risk to electrical power industries. Consequently, it becomes imperative to identify suitable method that can be used for the assessment of voltage stability (VS) in such a system. In this paper, the voltage stability indices such as L-Index, Voltage Collapse Proximity Index (VCPI), Novel Line Stability Index (NLSI), Fast Voltage Stability Index (FVSI) and the Bus Participation Factor (BPF) are compared together. To do this, for the L-Index, VCPI, NLSI and FVSI methods, the system is made to undergo a slow variation in reactive power load at each load bus until a voltage collapse point is reached. The load node with the highest value of L-Index, VCPI, NLSI and FVSI is picked as the voltage collapse bus. The values of BPF for each load node is calculated based on the critical mode, right and left eigenvectors of the system. The usefulness of all the methodologies is tested on the Southern Indian 10-bus and the IEEE 5-bus power systems. Result obtained shows that the use of BPF can be of great significant in the investigation of voltage stability compared with other methods.
AB - Recent incidence of voltage collapse in some developed and developing nations across the globe has caused a huge risk to electrical power industries. Consequently, it becomes imperative to identify suitable method that can be used for the assessment of voltage stability (VS) in such a system. In this paper, the voltage stability indices such as L-Index, Voltage Collapse Proximity Index (VCPI), Novel Line Stability Index (NLSI), Fast Voltage Stability Index (FVSI) and the Bus Participation Factor (BPF) are compared together. To do this, for the L-Index, VCPI, NLSI and FVSI methods, the system is made to undergo a slow variation in reactive power load at each load bus until a voltage collapse point is reached. The load node with the highest value of L-Index, VCPI, NLSI and FVSI is picked as the voltage collapse bus. The values of BPF for each load node is calculated based on the critical mode, right and left eigenvectors of the system. The usefulness of all the methodologies is tested on the Southern Indian 10-bus and the IEEE 5-bus power systems. Result obtained shows that the use of BPF can be of great significant in the investigation of voltage stability compared with other methods.
KW - critical node
KW - indices
KW - power system
KW - voltage stability power flow
UR - http://www.scopus.com/inward/record.url?scp=85103469790&partnerID=8YFLogxK
U2 - 10.1109/SeFet48154.2021.9375674
DO - 10.1109/SeFet48154.2021.9375674
M3 - Conference contribution
AN - SCOPUS:85103469790
T3 - 2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021
BT - 2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021
Y2 - 21 January 2021 through 23 January 2021
ER -
