Extended Phase Compensation Design of Power System Stabilizer for Bisotoun Power Plant

G. Zafarabadi, M. Parniani, M. Rasouli, P. Ansarimehr

Research output: Chapter in Book/Report/Conference proceedingChapter


This chapter describes performance of the power system stabilizer (PSS) of a large thermal power plant as tuned by the manufacturer. The stabilizer was redesigned based on extended phase compensation of the exciter input-the electrical torque transfer function and root locus analysis; and its effect on local, interplant, and interarea electromechanical oscillations was thoroughly analyzed. Participation factors and mode shapes were effectively employed to identify local, interplant, and interarea modes, as well as their characteristics. The PSS designed with extended phase compensation improves the damping of local and interplant oscillation modes considerably, and has some positive damping effect on interarea oscillations. Fine-tuning during onsite tests was necessary to achieve satisfactory performance. P-f PSS slightly outperforms P-w PSS in damping electromechanical oscillations. As Bistoun PSS has a special structure with two inputs, frequency, and power, its performance is compared with power-speed PSS. The effect of PSS with existing and new tunings on transient stability is studied.

Original languageEnglish (US)
Title of host publicationPower Plants and Power Systems Control 2006
PublisherElsevier Ltd
Number of pages6
ISBN (Print)9780080466200
StatePublished - 2007

All Science Journal Classification (ASJC) codes

  • General Energy


Dive into the research topics of 'Extended Phase Compensation Design of Power System Stabilizer for Bisotoun Power Plant'. Together they form a unique fingerprint.

Cite this