An adaptive power system stabilizer based on the self-optimizing pole shifting control strategy

Autor: Om P. Malik, Y.H. Qin, G.Y. Xu, G.P. Chen, G.S. Hope
Rok vydání: 1993
Předmět:
Zdroj: IEEE Transactions on Energy Conversion. 8:639-645
ISSN: 0885-8969
DOI: 10.1109/60.260975
Popis: An adaptive power system stabilizer (APSS) employing a new self-optimizing pole shifting control strategy and its application to a power system are described in this paper. Based on an identified model of the system, the control is computed by an algorithm which shifts the closed-loop poles of the system to some optimal locations inside the unit circle in the z-domain to minimize a given performance criterion. With the self-optimization property, outside intervention in the controller design procedure is minimized, thus simplifying the tuning procedure during commissioning. Also, a new method of calculating the variable forgetting factor in real-time parameter identification is discussed. Studies show that the proposed APSS can provide good damping of the power system over a wide operating range and significantly improve the dynamic performance of the system. >
Databáze: OpenAIRE