Implementation and Experimental Studies of a Self-Tuning PSS Using the ADALINE- Identifier and Pole-Shift Controller
G. Ramakrishna and O.P. Malik
Department of Electrical Engineering, University of Saskatchewan Saskatoon, SK S7N 5A9 and Department of Electrical & Computer Engineering, The University of Calgary, Calgary, AB T2N 1N4; Canada
Implementation and experimental results of a self-tuning power system stabilizer (PSS) using the indirect adaptive control principle (ADALINE- Identifier and linear feedback controller) are presented in this paper. The system is identified as a third-order ARMA model. The weights of the ADALINE- Identifier are updated on-line and have a one-to-one relation with the ARMA parameters. The controller uses the pole-shift control algorithm that moves the closed-loop poles of the identified system to achieve the regulation of the system to a constant setpoint in the shortest interval of time. Experimental studies verify that the proposed adaptive power system stabilizer (APSS) effectively damps the oscillations and improves power systems stability.
Power system stabilizer, ARMA Model, ADALINE-Identifier, pole-shift control