Generation of single and multiple power quality disturbances using matlab/simulink

Due to increase in non-linear loads and sensitive equipments at distribution end, power quality (PQ) of the power signal is distorted. Monitoring of the power quality is essential because it is the primary step for the mitigation of PQ disturbance to save the electrical system. In this paper generation method of different types of PQ disturbances are presented. Parametric equations and Simulink model are given for disturbance generation. Single and multiple power quality disturbances like sag, swell, harmonics, interruption and sag with harmonics are presented. All this work has been carried out in MATLAB/Simulink.