Optimization of the Energy Generation of Distributed Energy Sources Using Energy Management of Smart PV Inverters

Abstract

To face the complexity of the system in several divisions, the systems like micro grids were upgraded to smart grids, with technological enhancements. Generally, the smart inverters play a considerable role as a main contributor on the smart grid in several ways. Improvements can be added to the current smart inverters in order to face the modern difficulties which the existing one cannot handle. The main objective of this research is to optimize the distributed energy generation either by limiting or stopping the unnecessary power injections to the utility grid. Therefore this novel energy management system is enriched with abilities such as changing its power output according to the condition of the utility grid under predefined grid codes and the dynamic battery charging and discharging ability. The controlling of this system is done as a separate function to the controlling mechanism of the inverter. The background of the energy management system is discussed, along with existing systems and their issues. A novel energy management system is presented in this paper with a simulation model, modeled on MATLAB Simulink software. The results of the proposed system show the benefits and the flexibility that can add to the existing power system.