2 DOF Fuzzy Gain-Scheduling PI for Combustion Turbogenerator Speed Control

This paper presents two realizations a 2-DOF PI fuzzy gain-scheduling controller for wide-range speed control of combustion turbogenerators. The 2-DOF scheme allows independent tuning of the reference tracking and the disturbance rejection characteristics for the controlled system. Then, the fuzzy approach extends these characteristics all over the operating space of the combustion turbogenerator. Both realizations can be inserted into the speed control loop of existing control systems without degrading performance. Once in the loop, the controllers can be progressively tuned on-site, based on the inspection of speed responses. The proposed 2-DOF PI fuzzy gain-scheduling control schemes are suitable for application on actual combustion turbogenerators.