Enhancing power Quality in distribution network using shunt Active filter

Abstract

In recent days, the power electronic devices (nonlinear devices) newlineplay a vital role in both domestic and industrial applications. Due to this newlinedrastic change in power system network, there is a degradation in our newlinepower quality. These nonlinear loads are the main cause for injecting newlineharmonics in the distribution network. Presence of harmonics in newlinedistribution network results in poor power quality, low power factor and newlinefall in real and reactive powers mainly due to deformation in the shape of newlinethe supply voltage which leads to overheating of transformers, newlinedeteriorating the performance, life of electrical and electronic appliances, newlinecables and also causes damage to end user s appliances etc., Still analysis newlinehave been made by researchers on different filtering techniques like newlinepassive filters, active filters and hybrid filters for mitigating harmonics in newlinedissemination feeders. Passive filters can be able to minimize only odd newlineharmonics, hybrid filters are complex in control and expensive. Though, newlineeach filtering technique is having its own advantages and disadvantages, newlinethe shunt active filter can be implemented with suitable control newlinemethodology to enhance the power quality of a network. The main goal newlineof this research work is the power quality enhancement by diminishing newlineharmonics and voltage distortions in distribution feeder using Shunt newlineActive filter. The total deviation of potential should be within permissible newlinelimits as advised by IEEE 519. newlineInitially, a power flow analysis and harmonic analysis for 10 newlinebus spur and ring system is investigated to select a suitable network for newlinethe research work. Also, load flow analysis for a standard IEEE 33 bus newlinenetwork is simulated using Simulink model in MATLAB. newlinevi newlineAlso, the stability of the networks is determined by using Open newlineModelica Editor. After completing the investigations, it is clarified that in newlinea radial network the distortions in voltage are more to the customer newlineconnected at the end of the system. Hence, a radial network is preferred newlinehere to carry over the research for minimizing