Ideal AVR and PSS: a theoretical study

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.

A Survey on FOPID Controllers for LFO Damping in Power Systems Using Synchronous Generators, FACTS Devices and Inverter-Based Power Plants

“…The simulation results performed in four states are presented in Figures 11 and 12. It should be noted that the simulation is based on a comparison between the performance of the FOPID controller and other proposed PODCs in the literature [87][88][89][90][91][92][93][94][95][96][97][98]. Note that the FOPID controller with the optimal set of parameters can mitigate both inter-area and local oscillations.…”