Standardized Communication Model for Home Energy Management System

As the number of electric vehicles and PhotoVoltaic (PV) panels per household increases, the need for a coordination between these active components becomes more imminent. Home energy management systems (HEMS) have been proposed to increase efficiency, renewable energy capture and reduce costs for the owners. However, renewable energy is intermittent and time dependent. To increase the capture of this source, an integrated control with Electric Vehicle (EVs) is required to store excessive solar energy. Furthermore, coordination with the load profile enables storage for use at a later time or selling the excess energy to the grid. This requires the use of a Home Energy Management System (HEMS) that can coordinate all these components with the grid. Operation of these controllers need to be validated before actual deployment. In this paper, a standardized communication modeling based on IEC 61850 is developed for a HEMS controller. An integrated emulation platform using network simulator and IEC 61850 Intelligent Electronic Devices (IEDs) emulator is set up and the operation of HEMS is demonstrated with proper message exchanges. Such validation is crucial to project's success before on-site deployment.