TY - GEN
T1 - Transient Stability Assessment of Cascade Tripping of Renewable Sources Using SOS
AU - Mishra, Chetan
AU - Thorp, James S.
AU - Centeno, Virgilio A.
AU - Pal, Anamitra
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/21
Y1 - 2018/12/21
N2 - There has been significant increase in penetration of renewable generation (RG) sources all over the world. Localized concentration of many such generators could initiate a cascade tripping sequence that might threaten the stability of the entire system. Understanding the impact of cascade tripping process would help the system planner identify trip sequences that must be blocked in order to increase stability. In this work, we attempt to understand the consequences of cascade tripping mechanism through a Lyapunov approach. A conservative definition for the stability region (SR) along with its estimation for a given cascading sequence using sum of squares (SOS) programming is proposed. Finally, a simple probabilistic definition of the SR is used to visualize the risk of instability and understand the impact of blocking trip sequences. A 3-machine system with significant RG penetration is used to demonstrate the idea.
AB - There has been significant increase in penetration of renewable generation (RG) sources all over the world. Localized concentration of many such generators could initiate a cascade tripping sequence that might threaten the stability of the entire system. Understanding the impact of cascade tripping process would help the system planner identify trip sequences that must be blocked in order to increase stability. In this work, we attempt to understand the consequences of cascade tripping mechanism through a Lyapunov approach. A conservative definition for the stability region (SR) along with its estimation for a given cascading sequence using sum of squares (SOS) programming is proposed. Finally, a simple probabilistic definition of the SR is used to visualize the risk of instability and understand the impact of blocking trip sequences. A 3-machine system with significant RG penetration is used to demonstrate the idea.
KW - Cascade tripping
KW - Renewable generation (RG)
KW - Stability region (SR)
KW - Sum of squares (SOS)
KW - Switched systems
UR - http://www.scopus.com/inward/record.url?scp=85060810841&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85060810841&partnerID=8YFLogxK
U2 - 10.1109/PESGM.2018.8586291
DO - 10.1109/PESGM.2018.8586291
M3 - Conference contribution
AN - SCOPUS:85060810841
T3 - IEEE Power and Energy Society General Meeting
BT - 2018 IEEE Power and Energy Society General Meeting, PESGM 2018
PB - IEEE Computer Society
T2 - 2018 IEEE Power and Energy Society General Meeting, PESGM 2018
Y2 - 5 August 2018 through 10 August 2018
ER -