Privacy protection type real-time electric charge collecting method for intelligent power grid

Abstract

The invention discloses a privacy protection type real-time electric charge collecting method of an intelligent power grid. The method comprises the following steps: 1, initializing a system; 2, registering through a user before logging in the network; 3, releasing network access permit for an intelligent ammeter through a local aggregator; 4, obtaining a safety parameter through the intelligent ammeter; 5, transferring the network access permit through building gateway; 6, blinding the user electricity consumption data through the intelligent ammeter; 7, signing the blinded massage through the building gateway, and sending the signature result to the local aggregator; 8, removing blinding of the signed message through the local aggregator, recovering the user electricity consumption data, signature value of the user electricity consumption data, and the signature parameter, and verifying the validity of the signature value of the user electricity consumption data. With the adoption of the method, the user privacy is protected when collecting the real-time electricity consumption data; meanwhile, the source of vicious electricity consumption data can be found out; therefore, the stability of a power grid system can be improved well.

Description

technical field [0001] The present invention relates to the technical field of communication, and further relates to a real-time electricity collection method with privacy protection in the smart grid in the technical field of smart grid information security. The invention can be used in the smart grid to realize the anonymity of the building gateway when counting the user's real-time power consumption information, thereby protecting the privacy of the user's identity and power consumption situation. Background technique [0002] The smart grid is the intelligence of the grid, including more accurate meter sensing and measurement technology and more flexible billing methods. The power resources in the smart grid will be reintegrated and optimized, which will greatly improve the utilization rate of energy. The smart grid enables users to form an instant connection network with the grid company through the smart grid, realizes two-way, high-speed data transmission and informa...

AI Technical Summary

Problems solved by technology

However, the disadvantages of this method are: because the pseudonym needs to be changed regularly, the maintenance of the power grid is complicated, and the calculation time and storage space are relatively large.

However, this method still has the disadvantage that the set of key noise parameters and the selection probability set of key noise parameters need to be preset in the smart meter, which requires a large storage space

The calculation time required for a single retrieval is long, which cannot adapt to the frequent data interaction between users and grid providers

Moreover, this method does not take into account the anonymity requirements that the transmitted data should meet

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