Impedance source network based active power filter for interconnection of PV system into grid with power quality improvement

Abstract

The non-renewable energy sources are generally used energy sources for fulfilling the world electrical energy demand, however, it leads to increased costs, ecological contamination and global warming. To overcome the limitations of non-renewable energy sources, currently power industries are concentrating to use renewable energy sources such as wind, hydro, tidal and solar for electric power generation. Among the renewable energy sources, Solar Photovoltaic (SPV) seems to have an increasing prominence because of its features, such as, stationary and free from noise, non-prerequisite of fuel, low maintenance and environmentally-safe. The power converters are used to interconnect the Solar Photovoltaic (SPV) system into the utility grid. This power converter is having the combined capability of active filtering and grid interconnection. The 3-phase 4-wire system for distribution of electrical power is extensively used to distribute the power to the consumers. The development of power electronic loads, for example, Variable Frequency Drives (VFDs), Personal Computers (PC) and arc furnaces are receiving the impure sinusoidal current from the distribution system which leads to reducing the power quality due to voltage and current disturbances. newlineAmong all the power quality issues, current harmonic and the reactive power burden signify the most common frequent and vintage power quality degrading variables in the electric power systems. The shunt Active Power Filter (APF) is a most powerful Custom Power Device (CPD), which compensate the current based distortions and reactive power. newline newline