Probabilistic Vulnerability Assessment Based on Power Flow and Voltage Distribution

Conference · Fri Apr 30 00:00:00 EDT 2010

DOI:https://doi.org/10.1109/TDC.2010.5484304· OSTI ID:986270

Ma, Jian; Huang, Zhenyu; Wong, Pak C; Ferryman, Thomas A

Risk assessment of large scale power systems has been an important problem in power system reliability study. Probabilistic technique provides a powerful tool to solve the task. In this paper, we present the results of a study on probabilistic vulnerability assessment on WECC system. Cumulant based expansion method is applied to obtain the probabilistic distribution function (PDF) and cumulative distribution function (CDF) of power flows on transmission lines and voltage. Overall risk index based on the system vulnerability analysis is calculated using the WECC system. The simulation results based on WECC system is used to demonstrate the effectiveness of the method. The methodology can be applied to the risk analysis on large scale power systems.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 986270
• Report Number(s): PNNL-SA-68114; TRN: US201017%%175
• Resource Relation: Conference: 2010 IEEE PES Transmission and Distribution Conference and Exposition, 1-8
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
DISTRIBUTION
DISTRIBUTION FUNCTIONS
POWER SYSTEMS
POWER TRANSMISSION LINES
PROBABILISTIC ESTIMATION
RELIABILITY
RISK ASSESSMENT
SIMULATION
VULNERABILITY
Probabilistic power flow
Cumulant
Expansion
power system risk assessment
cumulative distribution function
probability distribution function
WECC system