An adaptive synchronous generator stabilizer design by generalized multivariable pole shifting (GMPS) technique

A robust adaptive power system stabilizer algorithm using a generalized multivariable pole shifting (GMPS) technique is presented. The method is capable of handling multiple-input-multiple-output (MIMO) systems with arbitrary numbers of inputs and outputs. The pole shifting factor is self-adjusted online such that the control constraints will not be violated. The algorithm was applied to a single-machine infinite-bus system excitation control. Both shaft speed and accelerating power were used as control inputs. A set of multifault simulation studies are presented to compare the system performance obtained by a conventional power system stabilizer. In all cases, the proposed controller demonstrates consistent superiority, and most importantly consistent reliability and robustness.>