DUAL INPUT QUASI-OPTIMAL PSS FOR GENERATING UNIT WITH STATIC EXCITATION SYSTEM

The paper considers dual input Power System Stabiliser (PSS) and Automatic Voltage Controller (AVR) for a generating unit equipped with synchronous generator and static excitation system. The control system uses analytically derived, quasi-optimal values of parameters (time constants) that cause the PSS to produce damping torque component only. Good dynamic properties of the plant equipped with the proposed dual input PSS and AVR are confirmed by simulation using a non-linear, multi-machine model of a power system (part of UCTE power system).