APPLYING H-INFINITY OPTIMIZATION METHOD TO POWER-SYSTEM STABILIZER DESIGN .2. MULTIMACHINE POWER-SYSTEMS

The application of the H-infinity optimisation method to power system stabiliser design is studied in this paper. The weighting function sel ection and the application to multi-machine power systems are investig ated in two separate parts. In this second part, it is shown that PSS design for multi-machine power systems can be translated into a proble m of a series of sequential stabiliser designs. Each of them is for a very high order Single-input Single-Output (SISO) 'plant' and can be f ormulated as an H-infinity mixed-sensitivity optimisation problem. The method developed in the first part for the selection of weighting fun ctions is also used in this second part. Applying these to a model of a 10 machine 39 bus-bar power system shows a satisfactory performance. Copyright (C) 1996 Published by Elsevier Science Ltd