Present Status and Challenges of Big Data Processing in Smart Grid

Smart grid operation needs panoramic state data,and during the operation,maintenance and management of smart grid massive heterogeneous and multi-state data,namely the big data,are generated.At present,how to store the big data efficiently,reliably and cheaply and access and analyze them rapidly are important research topics.Firstly,the source of the big data generated in various process of smart grid,such as power generation,transmission,transformation and power utilization,and the features of the big data are analyzed;secondly,the existing big data processing techniques adopted in the fields of business,Internet and industrial monitoring are summarized,and the advantages and disadvantages of these techniques in coping with the construction of smart grid and big data processing are analyzed in detail;finally,in aspects of big data storage,real-time data processing,fusion of heterogeneous multi-data sources and visualization of big data,the chance and challenge brought by smart grid big data are expounded.