Modeling and Simulating Long-Timescale Cascading Faults in Power Systems Caused by Line-Galloping Events

With the increasing occurrence of extreme weather events, the short circuit and line-breaking faults in transmission lines caused by line galloping have been threatening the security operation of power systems. These faults are also hard to be simulated with current simulation tools. A numerical sim...

Full description

Saved in:
Bibliographic Details
Published inEnergies (Basel) Vol. 10; no. 9; p. 1301
Main Authors Chen, Lizheng, Zhang, Hengxu, Li, Changgang, Sun, Huadong
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 2017
Subjects
cascading faults
Computer simulation
Extreme weather
Faults
Feasibility studies
line galloping
Mathematical models
power system simulation
Security
Simulation
Transmission lines
Online AccessGet full text

Cover

More Information
Summary:With the increasing occurrence of extreme weather events, the short circuit and line-breaking faults in transmission lines caused by line galloping have been threatening the security operation of power systems. These faults are also hard to be simulated with current simulation tools. A numerical simulation approach of power systems is presented to simulate the clustered, cascading faults of long-timescale caused by line-galloping events. A simulation framework is constructed in which large numbers of fault scenarios are simulated to reflect the randomness of line galloping. The interaction mechanism between power system operation states and line galloping processes is revealed and simulated by the solution of differences of timescales and parameters. Based on Power System Simulator/Engineering (PSS/E), an extended software package for line galloping simulation is developed with Python, which extends the functionalities of the PSS/E in power system simulation. An example is given to demonstrate the feasibility of the proposed simulation method.
ISSN:1996-1073
1996-1073
DOI:10.3390/en10091301