Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/623514
Title: Revealing the Impact of Multiple Solutions in DCOPF on the Risk Assessment of Line Cascading Failure in OPA Model
Authors: Xuan Liu;Zuyi Li
subject: risk assessment|Cascading failures|multiple solutions|power systems
Year: 2016
Publisher: IEEE
Abstract: Cascading failure is one of the most damaging events to power systems. To mitigate the risk, it is essential to first evaluate the risk and then take corresponding protective measures. However, the issue of multiple solutions in DCOPF, which is a tool used in the existing OPA risk assessment models and a linear programming (LP) problem, has not been considered. In this letter, we show that the risk may be seriously under-estimated if we do not consider the existence of multiple solutions. The risk is evaluated by generating two dispatch plans based on a bilevel mixed integer linear programming (MILP) model for DCOPF. The solution to the bilevel MILP model is obtained by solving one LP and one MILP. Simulation results based on the IEEE 118-bus and 300-bus systems demonstrate the impact of multiple solutions in DCOPF and effectiveness of the proposed approach.
URI: http://localhost/handle/Hannan/160346
http://localhost/handle/Hannan/623514
ISSN: 0885-8950
1558-0679
volume: 31
issue: 5
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7362245.pdf443.72 kBAdobe PDFThumbnail
Preview File
Title: Revealing the Impact of Multiple Solutions in DCOPF on the Risk Assessment of Line Cascading Failure in OPA Model
Authors: Xuan Liu;Zuyi Li
subject: risk assessment|Cascading failures|multiple solutions|power systems
Year: 2016
Publisher: IEEE
Abstract: Cascading failure is one of the most damaging events to power systems. To mitigate the risk, it is essential to first evaluate the risk and then take corresponding protective measures. However, the issue of multiple solutions in DCOPF, which is a tool used in the existing OPA risk assessment models and a linear programming (LP) problem, has not been considered. In this letter, we show that the risk may be seriously under-estimated if we do not consider the existence of multiple solutions. The risk is evaluated by generating two dispatch plans based on a bilevel mixed integer linear programming (MILP) model for DCOPF. The solution to the bilevel MILP model is obtained by solving one LP and one MILP. Simulation results based on the IEEE 118-bus and 300-bus systems demonstrate the impact of multiple solutions in DCOPF and effectiveness of the proposed approach.
URI: http://localhost/handle/Hannan/160346
http://localhost/handle/Hannan/623514
ISSN: 0885-8950
1558-0679
volume: 31
issue: 5
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7362245.pdf443.72 kBAdobe PDFThumbnail
Preview File
Title: Revealing the Impact of Multiple Solutions in DCOPF on the Risk Assessment of Line Cascading Failure in OPA Model
Authors: Xuan Liu;Zuyi Li
subject: risk assessment|Cascading failures|multiple solutions|power systems
Year: 2016
Publisher: IEEE
Abstract: Cascading failure is one of the most damaging events to power systems. To mitigate the risk, it is essential to first evaluate the risk and then take corresponding protective measures. However, the issue of multiple solutions in DCOPF, which is a tool used in the existing OPA risk assessment models and a linear programming (LP) problem, has not been considered. In this letter, we show that the risk may be seriously under-estimated if we do not consider the existence of multiple solutions. The risk is evaluated by generating two dispatch plans based on a bilevel mixed integer linear programming (MILP) model for DCOPF. The solution to the bilevel MILP model is obtained by solving one LP and one MILP. Simulation results based on the IEEE 118-bus and 300-bus systems demonstrate the impact of multiple solutions in DCOPF and effectiveness of the proposed approach.
URI: http://localhost/handle/Hannan/160346
http://localhost/handle/Hannan/623514
ISSN: 0885-8950
1558-0679
volume: 31
issue: 5
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7362245.pdf443.72 kBAdobe PDFThumbnail
Preview File