In response to the national major strategy of "carbon neutral" in 2060,and to solve the problems of resource shortage,environmental pollution and global climate change caused by traditional thermal power generation,the power grid vigorously promotes the development of new energy and promotes the clean energy supply.However,the intermittent and cyclical problems of new energy generation lead to the prominent problem of new energy consumption in power grid.On the other hand,with the continuous improvement of China’s electrification level and residents’ living standards,the rapid growth of power consumption in the whole society aggravates the imbalance between power supply and demand.Traditional demand response underlying communication technology is difficult to meet the refined and complex communication needs of emerging power grid business.Therefore,in order to solve the above problems,this paper studies the optimization of demand response communication technology from the aspect of demand response bottom communication,and designs a variety of new adaptive coding and modulation technology,which provides an important reference value for the research of power grid demand response communication technology.The main contents of this paper are as follows:(1)This paper first introduces the research status and challenges of demand response service communication at home and abroad.Then,this paper introduces the basic theory of demand response,deeply analyzes the demand of demand response underlying information interaction under the current demand response development trend,and explains the necessity of optimizing the demand response underlying communication technology.(2)This paper designs an adaptive transmission mode based on SNR.In this paper,different coding and modulation techniques are used to transmit the demand response business data.Secondly,this paper analyzes its transmission reliability through a large number of simulation experiments,and obtains the optimal coding and modulation technology under different SNR conditions.Finally,considering the different requirements of different services,a signal-to-noise ratio based adaptive coded modulation scheme(DRBAMC)is designed,and the simulation results verify the effectiveness of the proposed scheme.(3)In this paper,an adaptive coded modulation technology based on transmission delay is designed.In this paper,different coding and modulation techniques are used to transmit the demand response business data.Secondly,this paper analyzes and obtains the comparison results of transmission delay under different coding and modulation technologies through simulation experiments.Finally,based on the above-mentioned signal-to-noise ratio based adaptive coded modulation technology,this paper further designs the transmission delay based adaptive coded modulation technology(DDRBAMC),and verifies the superiority of the designed DDRBAMC in transmission delay compared with drbamc through simulation experiments. |