A hybrid solution to improve power quality in dispersed generation systems

This paper discusses power quality improvement by using a combination of passive filters and DG units in power systems. The system simulation results are done for a system consisting of DG units and nonlinear loads. Passive filters are used to compensate reactive power and eliminate dominant harmonics however they have a limited band width and they are unable to compensate load unbalance and harmonics completely. So DG units are used in this paper in order to improve compensation characteristic of passive filters and compensate load unbalance. Simulation results are demonstrated to show the effectiveness of proposed configuration.