Golam Mortuja, Pramod Kumar Rathore
In recent years, traditional electrical power networks have been rapidly transformed into smart grids and next-generation power systems. The utilization of power electronics is an important aspect of these developments. Recent improvements in power electronics have hastened the integration of renewable energy sources, power storage, and contemporary loads into a hybrid microgrid linked to the smart grid. This study describes a Photovoltaic Array integrated into active power filter that includes harmonic correction and active power injection. The most effective solution for nonlinear loads, current harmonics, and power quality concerns is a shunt active power filter. Active power filter topologies for harmonic correction are wasteful because they depend on a large number of components with high power ratings. To reduce the power rating of voltage source inverters, hybrid topologies combining low-power ratings Active power filters and passive filters have been deployed. In hybrid APF topologies, a transformer with a large number of passive components is employed to power high-power systems. This paper presents a unique four-switch two-leg Voltage source inverter design for a three-phase Shunt active power filter with the goal of lowering system costs and footprint. The recommended topology includes a two-arm bridge design, four switches, coupling inductors, and two sets of LC PFs. By eliminating the power switching devices, the third leg of the three-phase VSI is deleted, enabling the phase to be directly linked to the dc-link capacitor's negative terminals. When compared to standard Active power filter topologies, the proposed approach enhances harmonic compensation and allows for total reactive power compensation. Since the photovoltaic array is linked to the DC connection, active electricity is fed into the network and absorbed by the load. The test system's findings are examined using the MATLAB Simulink program.
Harmonics,hybridtopology,nonlinearload,powerquality(PQ),Transformer less inverter, Grid-connected system.