In the interconnected power system network, instability problems are caused mainly by the low frequency oscillations of 0.2 to 2.5 Hz .The supplementary control signal in addition with AVR and high gain excitation systems are provided by means of Power System Stabilizer (PSS). Conventional power system stabilizers provide effective damping only on a particular operating point. But fuzzy based P...

Power system stability enhancement via robust coordinated design of a power system stabilizer (PSS) and a static VAR compensator (SVC)-based stabilizer is thoroughly investigated in this paper. The coordinated design problem of robust excitation and SVC-based controllers over a wide range of loading conditions and system configurations is formulated as an optimization problem with an eigenvalue...

This paper proposes a new approach for combining genetic algorithm and sliding mode control to design the power system stabilizers (PSS). The design of a PSS can be formulated as an optimal linear regulator control problem. However, implementing this technique requires the design of estimators. This increases the implementation and reduces the reliability of control system. These reasons, there...

Improving the power stability of an interconnected Nigerian 330KV 48 bus system was developed using Genetic Eigenvalue Technique to mitigate challenges proper placement stabilizer due its highly dynamic and nonlinear nature. In order eliminate load losses, equipment malfunctioning, other quality issues, unnecessary tripping cascaded failures in network, stabilizers are installed improve stabili...

This paper presents a novel approach to capture the development of dynamic voltage instability caused by the dynamics of different power system devices, such as loads, generators, automatic voltage regulators (AVR), overexcitation limiters (OXL), power system stabilizers (PSS), and onload tap changing (OLTC) transformers using an accurate time-domain analysis. A small power system model is pres...

This work discusses the production of a novel hybrid algorithm by combining gorilla troops optimizer (GTO) with gradient-based optimizers (GBO) approach. The approach is called GTO-GBO, it offered as useful tool for optimizing power system stabilizer (PSS) used in IEEE four-generator, two-area multi-machine subjected to three-phase short-circuit fault. MATLAB/Simulink software was utilized carr...

Power system stabilizers (PSSs) are the most well known and efficient devices to damp the power system oscillations caused by interruptions. Low frequency oscillation problems are very difficult to solve because power systems are very large, complex and geographically distributed. Hence, it is necessary to employ most efficient optimization methods to take full advantages in simplifying the pro...

The major concern in power systems has been the problem of low frequency oscillations (LFO) that results in the reduction of the power transfer capabilities. The applications of power system stabilizers (PSS) are commonly employed to dampen these low frequency oscillations. The parameters of the PSS are tuned by considering the Heffron-Phillips model of a single machine infinite bus system (SMI...