DefinePK

Abstract

The penetration of harmonic distortion in electrical power system due to the extensive utilization ofnonlinear electronic loads such as Personal Computer (PC) is the root cause of voltage and current distortion andalso serious troubles for overall electrical power system. More or less every household consumer of electricity isfaced variations in the system voltage, frequency, source impedance. To quantify the influence of above mentionedfactors on harmonic distortion magnitudes in non linear loads accurately, we need to studies and implement variousaspects together with the accurate simulation model of these nonlinear loads. Hence, the objectives of this paper isfirst to evaluate the efficiency of developed simulink model of personal computer for harmonic distortioninvestigation via comparing with experimental measurement and second is to investigate the influence of abovementioned factors individually and precisely on the total harmonic distortion by using that simulink model ofpersonal computer. Validation of the PC simulink model is done by performing experimental study at ElectricalEngineering Department QUEST Nawabshah and comparing the THD and other power quantities obtained fromsimulation using MATLAB with the values obtained by experimental measurement