Distributed economic dispatching method for energy storage battery based on differential privacy mechanism

Abstract

The invention discloses an energy storage battery distributed economic dispatching method based on a differential privacy mechanism, and belongs to the technical field of electrical engineering. According to the method, a distributed method based on a consistency algorithm is adopted to solve an energy storage battery economic dispatching model, and the output of each energy storage battery when the social benefit is maximized is solved through iterative calculation. Implementation of a distributed method depends on communication between energy storage and power consumers, and the risk of information stealing exists. According to the method, a differential privacy mechanism is introduced into a distributed method, noise covering is carried out on transmitted information, privacy information of energy storage and power users is protected, and after a differential privacy algorithm is added, the convergence of iteration of the distributed method is not affected. After the differential privacy algorithm is added, the convergence precision and the privacy protection degree of the distributed method are related to the added noise signal, the convergence precision and the privacy protection degree are in negative correlation, and the convergence precision and the privacy protection degree can be balanced according to the requirements for the convergence precision and the privacy protection degree in practical application.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, and more particularly relates to a distributed economic dispatch method for energy storage batteries based on a differential privacy mechanism. Background technique [0002] In recent years, as the proportion of renewable energy in the power system has gradually increased, energy storage has also been more and more widely used in the power grid. The battery energy storage system has the characteristics of fast response speed, wide adjustment range and easy two-way adjustment, which can provide flexibility for the power grid and improve the operation and management ability of the power grid. It is the main power unit in the energy storage power station. Accurate and fast, it has better response characteristics than traditional thermal power units. [0003] The design of energy storage battery economic dispatch method depends on communication technology, which can be divided into ce...

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Problems solved by technology

[0004] Aiming at the inability of the existing technology to guarantee the privacy protection in the distributed economic scheduling method of energy storage batteries, the present invention provides a distributed economic scheduling method of energy storage batteries based on a differential privacy mechanism, the purpose of which is to use a distributed method to solve the energy storage economic Scheduling problems, and cover up the communication information involved in the distributed algorithm of economic scheduling; trade-off analysis between the degree of privacy information protection and algorithm convergence accuracy can not only realize the protection of all private information, but also ensure the distribution Convergence and Convergence Accuracy of Formula Economic Dispatch Algorithm

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