In this paper, a largeorder system is reduced by using the self adaptive bat algorithm (SABA) to a reduced-order approximation. The numerator coefficients of a desired reduced-order system are optimized based on integral square error minimization as an objective function pertaining to a unit-step as input. The denominator of the reduced order model is solved by stability equation method. The ef...

This paper investigates the critical parameters of power systems which affect the stability of the system. The analysis is conducted on both a single machine infinite bus (SMIB) system and a large multimachine system with dynamic loads. To further investigate the effects of dynamic loads on power system stability, the effectiveness of conventional as well as modern linear controllers is tested ...

Generally model equations of power system components such as transmission lines, transformers and loads etc. are given in the ABC reference frame. But for components with rotating masses such as synchronous machines, induction motors etc., the DQ0 reference frame is usually preferred. In this paper dynamic phasor models of synchronous machines and transmission lines will be derived in ABC and D...

In this paper an attempt has beenmade to investigate the transient stability enhancement of both SMIB and Multi-machine system using UPFC controller tuned by Particle Swarm Optimization. Power injection modelfor a series voltage source of UPFC has been implemented to replace UPFC by equivalent admittance. The admittance matrix of the power system is then modified according to the power injectio...

A robust design of particle swarm optimization (PSO) and Taguchi algorithm-based power system stabilizer (PSS) is presented in this paper. It incorporates a novel concept which PSO techniques are integrated for stabilization single machine infinite bus (SMIB). The tolerates uncertainty imprecision to maximum extent. proposed controller's effectiveness proved through experiments covering light l...

Changes in the load on electric power system suddenly cause dynamic disturbances. The disturbance causes stability of generator to be disturbed, because does not respond quickly. This oscillations form frequency and rotor angle. One additional control equipment that can increase a is Power System Stabilizer (PSS). With PSS installation, optimal response angle SMIB are obtained, indicated by min...