Monitoring and operation of transmission corridors

M. Larsson, C. Rehtanz, J. Bertsch
2003 IEEE Bologna Power Tech Conference Proceedings,  
Transmission corridors between interconnected power systems or within countrywide transmission systems are limiting network performance or even market activities. We describe a state-of-the-art wide-area measurement system which is commercially available, and a new method to assess the voltage stability of a transmission corridor. Using only topological information, several lines can be grouped into a so-called virtual transmission corridor, whose parameters can be calculated from wide-area
more » ... from wide-area measurements. A simple computational procedure for stability analysis, makes it possible to provide approximate stability margins with an update rate of less than a second. Such stability margins can be the basis for on-line dynamic rating of lines. Business cases for such dynamic rating are also discussed.
doi:10.1109/ptc.2003.1304467 fatcat:a7ed2jrqe5g6dn4sq4qe2b35tm