Simscape based modeling and simulation of a PV generator in microgrid scenario

This paper presents detailed modeling and design of a PV generator, capable of working in grid connected and islanded modes, using Simscape, Matlab software considering practical on-site condition such as constant and variable load condition including natural uncertainty due to varying irradiance situation etc. The steps of modeling of a sample PV generator is described in detail which will be useful to study the performance of a solar energy based system prior on-site installation. The PV generator system is studied under fixed load, variable load and varying irradiance conditions. The feasibility of the model is also tested as one of the distributed energy resources of an inverter based microgrid catering an ac load as a sample study of industrial application of an inverter based microgrid under grid connected and islanded mode of operation. The simulation results are found satisfactory proving feasibility of the proposed model of PV generator at the stage of research and development in the emerging power scenario of microgrid.