Analysis of Voltage Stability Control for a Grid Connected Inverter

Abstract

Energy consumption is rising daily while non-renewable energy sources are dwindling. We should produce more renewable energy to counter these arguments. However, one significant issue with renewable energy is that it depends on the weather to be produced. The energy generated on the grid side cannot meet the demand on the load side during cloudy and inclement weather. Non-linear loads that reduce the power quality of the energy networks or high or uncontrolled energy Demand may be the main load-side concerns. Energy sources connected to the grid via an electronic converter or inverter have quite different operational characteristics when compared to the generation of renewable energy. This research focuses on the grid's stability and how to overcome the problem of grid-to-transmission-line stability. In this work, the advantages of MPPT and PI controllers with inverters in a power system from grid to transmission line are investigated. A solid control system in which the MPPT and the PI controller with inverter address the major issue. The proposed grid system, MPPT model in BOOST converter, inverter, and LC filter are all designed in MATLAB/Simulink. To establish the tracking response of the set power references, a series of simulations for the gridconnected MPPT in BOOST converter and PI controller in inverter model were done with various step changes in the active and reactive power references.