Modeling and closed-loop validation of a new PSS concept, the multi-band PSS

This paper describes the characteristics of a new power system stabilizer, the multi-band PSS. Its model, IEEE PSS4B, is presented to explain its basic principles and functions. This Delta-Omega PSS makes use of three distinct working bands to process the whole spectrum of oscillating modes present in power systems. To illustrate the PSS performance, a simple setting technique, specially developed for this PSS, is presented and used to validate the closed-loop performance of the MB-PSS either in stability simulation or field testing conditions. Presented results are for Hydro-Quebec LG2 power plant.