Hysteresis Controlled Based Power Quality Improvement in a Renewable Energy Source Connected to Utility grid with BESS Based STATCOM

This Paper presents a control strategy of the grid interconnected inverter Renewable Energy Sources (RES). Thissystem can achieve the maximum benefits from these grid interconnected inverter when installed in 3-phase 4-wiredistribution system. Increasing electrification of daily life causes growing electricity consumption and the rising numberof sensitive or critical loads demand for high quality electricity. One of the main problems facing today is that related withthe transmission and distribution of electricity. Due to the rapid increase in global energy consumption and thediminishing of fossil fuels, the customer demand for new generation capacities and efficient energy production, deliveryand utilization keeps rising. Utilizing distributed generation, renewable energy and energy storage can potentially solveproblems as energy shortage. With the increase in load demand, the Renewable Energy Sources (RES) are increasinglyconnected in the distribution systems which utilizes power electronic Converters/Inverters.The inverter can perform as a multi function device by incorporating active power filter functionality. The inverter canthus be utilized as: 1) power converter to inject power generated from RES to the grid, and 2) shunt APF to compensatecurrent unbalance, load current harmonics, load reactive power demand and load neutral current. All of these functionsmay be accomplished either individually or simultaneously. This new control concept is demonstrated with extensiveMATLAB/Simulink simulation studies and validated through digital signal processor-based laboratory experimentalresults.