| With the gradual development of the active distribution networks,a large number of distributed energy sources are connected to the active distribution network,and the power supply in the distribution network has become diversified.How to ensure the safety and efficiency of the service data of the active distribution network during the data transmission has become an urgent issue and research hotspot for the information security protection of the active distribution network.This paper introduces the algorithm design and implementation process of the key technologies of data security transmission for active distribution network.The main work includes the following parts:(1)From the perspective of data encryption,a data transmission algorithm based on fast matching and integrity detection is proposed.The MD5 algorithm is used to obtain the digital fingerprint mapped to each data packet.While the data is encrypted by AES symmetric encryption to generate a ciphertext,and the digital fingerprint is added to the tail of the cloud to ensure the security and uniqueness of the data packet.Besides,a fast matching method based on the MD5 algorithm is proposed to ensure the integrity of the data in the transmission process and improve the data transmission speed.(2)In order to further optimize the data transmission technology,the active protection of data transmission has been studied.A data filtering algorithm based on attribute reduction and gene expression programming is proposed.Firstly,attribute reduction of active power distribution network data is carried out to improve the speed of data mining.Secondly,the sensitive data is filtered and protected to realize the safe and efficient transmission of data in active power distribution network.(3)Design the idea and implement the code of the arithmetic.The accuracy and efficiency of the proposed algorithm are verified experimentally from many aspects by using the relevant data of active distribution network.In this paper,the design and implementation of data security transfer algorithm,combined with the characteristics of the active power distribution network,not only from the data encryption method to achieve safe and efficient transmission of data in the active distribution network,but also in the data transmission process of active safety and efficient protection.In general,the proposed algorithm can well guarantee the safety of active distribution network data during transmission and improve the data transmission speed. |
