March 1992
IFAC Proceedings Volumes
A successive modal network reduction technique is outlined and its application to the interconnected power systems of Singapore and Malaysia is demonstrated. The validity of linear, reduced area models over a wide range of disturbances, which have to be studied by utilities on a regular basis is analyzed and discussed. Besides the obvious advantages of drastically reduced simulation times and the option of anonymous data exchange on numerical matrix level with neighboring interconnected systems authorities, the spin-off effect of the presented method is the modal information which is gained by the reduction process itself, allowing for detailed analysis of the modal patterns and oscillatory stability quantities.