Secure integration of the Home Energy Management System to the battery management system in the customer domain of the smart grid

In the future smart grid, electricity consumption also follows production. Smart grid achieves this aim by applying Demand-Side Integration and integrating of local generation in electricity network operations. This requires Home Energy Management System (HEMS) that controls Distributed Energy Resources (DERs) from one hand and communicates with electrical grid from another hand. In peak hours, HEMS encourages customer to use residential energy resources like battery storage. Therefore, communication between HEMS and battery is required. Information integration is needed if two sides of communication are heterogeneous. The possible solution is locating of a protocol converter in the middle of communication path. This paper discusses about secure integration of HEMS that supports Ethernet to the battery management system that supports Controller Area Network (CAN). Integration is implemented by using of the protocol converter device along with a computer. Client-server model is applied in combination with username/password-based mutual authentication over secure socket layer.