Application of a nonlinear hybrid controller in multi-machine power system based on a power system stabilizer


The power system stabilizer (PSS) is used to generate supplementary control signals for the excitation system in order todampen low frequency oscillations. This paper presents an approach to designing a hybrid power system stabilizer (HPSS),which is a parallel combination of a conventional PSS and a nonlinear control system, to enhance transient stability for multimachinepower systems. The effectiveness and applicability of the proposed approach are examined using a standard multimachinepower system. The nonlinear system simulation results show that the HPSS is more effective than the conventionalPSS in damping oscillations.

Author Biography

Mehrnoush Ahmadi-Zebarjad, Islamic Azad University
Electrical Engineering


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How to Cite
AHMADI-ZEBARJAD, Mehrnoush; SHAHGHOLIAN, Ghazanfar. Application of a nonlinear hybrid controller in multi-machine power system based on a power system stabilizer. Journal of Power Technologies, [S.l.], v. 97, n. 4, p. 295--301, june 2017. ISSN 2083-4195. Available at: <>. Date accessed: 23 july 2024.
Electrical Engineering


Power system stabilizer; Hybrid structure; Multi-machine power system; Nonlinear hybrid control

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