Smart Load Node for Nonsmart Load Under Smart Grid Paradigm: A New Home Energy Management System
For homeowners and utilities, this provides a cost-effective retrofit solution for demand-side management with existing non-smart appliances.
The paper proposes a low-cost Smart Load Node (SLN) for enabling non-smart appliances to operate intelligently in a smart grid, without requiring infrastructural or appliance changes. The system uses Wi-Fi-based home area network with a load management unit running a Python-based algorithm.
This article presents a novel approach for efficient operation of non-smart household appliances under smart grid environment using the proposed smart load node (SLN). In real world scenario, there are so many non-smart loads currently in use and embedding appliance specific intelligence into them to make them as smart loads will be more expensive compared to the proposed SLN, which is a common solution for all types of non-smart loads. This makes the proposed low-cost SLN, which neither requires any infrastructural change in the electrical wiring of a house nor any constructional change in home appliances at the manufacturing stage and at the consumer end, as a feasible solution for intelligent operation of non-smart home appliances under smart grid environment. The SLNs, which are placed in a home like distributed wireless sensor nodes, form a home area network (HAN). The HAN includes a load management unit (LMU) which acts as master for all distributed SLNs. Wi-Fi is chosen as a medium of communication in the HAN. The LMU incorporates load management algorithm which is written in Python script.