Abstract:

With the rapid development of new energy and rechargeable vehicles,the role of adjustable load in the power system is becoming more and more obvious.When the adjustable resources mainly including energy storage and distributed photovoltaic participate in peak load shifting and valley filling of substation area distribution,it is necessary to collect the information of grid connection point,transformer,new energy and load,and carry out advanced strategy implementation.The information collections need to add metering devices and cable laying,which increases a lot cost.The energy fusion device developed in this paper adopts the Internet of things(IoT) technology,uses intelligent measurement switch to collect information,and transmits information through LoRa technology to meet the optimal control of active and reactive power,and realizes various functions such as peak shaving and valley filling,reactive power compensation,new energy consumption,orderly charging of electric vehicles etc.,and realizes localized edge calculation,which is verified by experiments.

Key words: Internet of things (IoT), energy fusion device, LoRa, peak shaving and valley filling, edge computing