A quantitative design approach to PSS tuning

This paper presents the application of quantitative feedback design techniques for tuning stabilizers in multi-machine power systems. This approach facilitates easy handling of multiple plant models thereby yielding robust and reliable stabilizer parameters. Methods of incorporating closed-loop stability and damping performance requirements into the design are explained. In the proposed sequential tuning technique, bounds on the stabilizer frequency response are computed for stability and performance at each of the given set of operating conditions of the system. A manual controller shaping then yields the desired stabilizer parameters. Application to an illustrative textbook example of an 11-bus, four-generator system is also included.