A Research of Industry load Classification based on Significant Difference Test,Granger Causality Test and Correlation Test

The high energy consumption industries get a larger proportion in the range of China Southern Power Grid,while they are more susceptible to Wind-withered price,market,national policy and other factors.Due to limitations of the technology and related policies in the past,China Southern Power Grid could not make a quantitative analysis on these effects by using effective method.Therefore,it is necessary to classify and analyze load for the industry.In order to facilitate the scheduling department to manage load forecasting work better,this paper aims to classify industry load in the jurisdiction of China Southern Power Grid after conducting a survey and making an analysis.Finally,significant difference test,Granger causality test and correlation test were used to verify reliability rationality and science of this industry classification.