In recent days the usage of non-linear loads arebecoming enormous which gives an alarming signal to powersystem and power engineers. This paper deals with design,simulation experimentation of a shunt active power filter (SAPF)to improve power quality. Due to a large amount of non-linearpower electronic equipments, and fluctuating loads (such as thatof arc furnace, heavy merchant mill etc), problems of powerquality have become more and more serious with each passingday. The usage of active filter mitigates the harmonics present inthe current signal resulting in maintaining the quality of thepower supply in the system. It is known from the fact thatHarmonic Distortion is one of the main power quality problemsfrequently encountered by the utilities. As a result Shunt Activepower filter (SAPF) gains much more attention due to excellentharmonic compensation. Here Synchronous Detection Method(SDM) is used to tune the Shunt active power filter. On owingSDM method gives away an outstanding performance under anyvoltage conditions (balanced, un-balanced, balanced nonsinusoidal and balanced sinusoidal). Extensive simulations werecarried out; Simulation results validate the superior performanceof Synchronous Detection method (SDM). Simulation is done inMatlab/simulink software and the results shows that TotalHarmonic Distortion (THD) is reduced significantly whencompared with other methods.
展开▼
