Ideal AVR and PSS: a theoretical study. Issue 25 (7th December 2020)

• Record Type: Journal Article
• Authors: Kumar, Ajit
• Is Part Of: IET generation, transmission & distribution. Volume 14:Issue 25(2020)
• Page Start: 6250
• Page End: 6258
• Publication Date: 2020-12-07
• Subjects: time‐domain analysis -- eigenvalues and eigenfunctions -- synchronous machines -- rotors -- power system control -- control system synthesis -- nonlinear control systems -- power system stability; oscillatory dynamics -- excitation controller -- normal form -- single machine infinite bus power system model -- IEEE model 1 -- time‐domain simulation -- method exhibit ideal PSS characteristics -- eigenvalue analysis -- ideal power system stabiliser characteristics -- rotor mode -- novel nonlinear objective -- secondary controller -- conventional linear control technique -- power systems; Electric power production -- Periodicals; Electric power transmission -- Periodicals; Electric power distribution -- Periodicals; 621.3105
• DOI: 10.1049/iet-gtd.2020.1247
• Languages: English
• ISSNs: 1751-8687

Abstract

Abstract : In this study, a normal form based excitation controller for oscillatory dynamics in power systems is investigated. Afterwards, instead of using a conventional linear control technique for the secondary controller, a novel non‐linear objective for the rotor mode is considered to emulate ideal power system stabiliser (PSS) characteristics. With the aid of eigenvalue analysis, it is shown that the proposed method exhibit ideal PSS characteristics. Moreover, it is demonstrated the proposed technique is robust when compared with the conventional controllers. Time‐domain simulation is performed on the third‐, fourth‐, and sixth‐order model (i.e. IEEE model 1.0, 1.1, and 2.2) of the synchronous machines. Simulation results are shown on a single machine infinite bus power system model.