Improving Interarea Mode Oscillation Damping in Multi-Machine Energy Systems through a Coordinated PSS and FACTS Controller Framework

Abstract

Power system stability is of paramount importance in the context of energy sustainability. The reliable and efficient operation of power systems is crucial for supporting modern societies, economies, and the growing demand for electricity while minimizing environmental impact and increasing sustainability. Due to the insufficient effect of power system stabilizers (PSSs) on damping the inter-area mode oscillations, Flexible AC Transmission System (FACTS) devices are utilized for damping this mode and stabilizing power systems. In the present study, a novel optimization framework considering different and variable weight coefficients based on eigenvalue locations is presented, and the parameters of PSS and variable impedance devices, including static Volt-Ampere Reactive (VAR) compensator (SVC) and Thyristor-Controlled Series Compensator (TCSC) (comprising amplifying gain factor and time constants of phase-compensating blocks), are optimized in a coordinated manner using the proposed optimization framework built based on genetic algorithm (GA). Moreover, in the suggested optimization framework, the locations of FACTS devices and control signals are considered optimization parameters. Numerical results for the IEEE 69-bus power system demonstrated an effective improvement in the damping of inter-area modes utilizing the offered approach.

Analyzing Small-Signal Stability in a Multi-Source Single-Area Power System with a Load-Frequency Controller Coordinated with a Photovoltaic System

“…The contribution of the units in the nominal load is determined by these factors. Within a particular control area, the aggre gate of membership factors is equivalent to 1 [57,58].…”

A Novel Techno-Economical Control of UPFC against Cyber-Physical Attacks Considering Power System Interarea Oscillations

“…The mitigation of low-frequency oscillations in a connected power system was outlined in [13]. The authors of [14] provided a comprehensive analysis of the role of unified power flow regulation in voltage power transfer. In [3,15], the authors detailed how the performance of power system stability was enhanced by employing multiple damping controllers based on PSS and UPFC.…”

Optimization Design of PSS and SVC Coordination Controller Based on the Neighborhood Rough Set and Improved Whale Optimization Algorithm

“…In recent years, to further improve the stability and reliability of power systems, several researchers have focused on the coordinated control methods of PSSs and SVCs, and significant research results have been achieved [17,18]. Transforming the design problems of PSSs and SVCs into optimization problems has emerged as a prevalent strategy to cope with diverse operational conditions and system failures [19,20].…”