Optimization of Interactive Demand Response Information Model for Adjustable Load Platform

The demand response (DR) equipment with limited resources on the user side uses the OpenADR protocol based on HTTP / XML to carry the DRservice, which will cause problems of large overhead and high delay. In order to solve this problem, the lightweight protocol constrained application protocol (CoAP) is used to replace HTTP protocol to complete the process of demand response information interaction, and a DR communication architecture based on CoAP is designed. At the same time, aiming at the problems that the congestion control mode of CoAP protocol is too simple and facing high concurrent DR services may cause network congestion and long response delay, an adaptive congestion control method based on network state is proposed. Simulation results show that CoAP protocol can effectively improve DR real-time response ability and reduce overhead. The proposed congestion control algorithm can alleviate the problem of network congestion, so as to improve the performance of DR service carried by CoAP protocol.