Using a Multi-Functional Inverter to Connect the Distributed Generation Source to the Network with Purpose of Reducing Harmonic and Network Imbalance

Since inverters connected to the grid are an effective interface for communicating with renewable and sustainable energy sources, they have become a key component of distributed generation systems and microgrids. In recent years, multipurpose inverters connected to the grid have attracted a lot of attention in the field of auxiliary services related to the improvement of power quality in distributed production and microgrids; Because this type of converters can not only be used to produce power in distributed energy production sources but can also be effective in improving power quality the grid-connected points. These cost-effective features of these types of inverters can lead to a reduction in investment costs compared to other converters. In this article, a resonant controller with a multi-functional inverter connected to the network is investigated and its parameters are adjusted based on the pole placement method, and using the instantaneous power theory, the stabilization of the filter by current feedback is studied and simulated.