Microgrid distributed energy optimization management method based on homomorphic encryption privacy protection
A privacy protection and energy optimization technology, applied in homomorphic encryption communication, electrical components, circuit devices, etc., can solve privacy leakage and other issues
Active Publication Date: 2022-03-01
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
Solved the privacy leakage problem in distributed energy management
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[0038] Embodiments of the present invention will be disclosed in the following diagrams. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary.
[0039] Such as figure 1 As shown, the present invention is a microgrid distributed energy optimization management method based on homomorphic encryption privacy protection, including the following steps:
[0040] Step 1: Aiming at the maximization of social welfare, consider comprehensively the constraints of power generation load balance, power generation unit output power limit, ramp rate limit, and responsive load unit power limit to establish a microgrid distributed energy optimization management model:
[0041] (1) The goal of maximizing social welfare:
[0042]
[0043] where P G...
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The invention belongs to the technical field of power system automation, and relates to a micro-grid distributed energy optimization management method based on homomorphic encryption privacy protection, which comprises the following steps of: 1, establishing a distributed energy management model in a micro-grid by taking maximization of social welfare as a target; 2, an original non-convex problem with global coupling constraints is decoupled and converted into a distributed problem only containing local constraints, and then the distributed problem is decomposed into n sub-optimization problems; step 3, solving a distributed energy management scheme set satisfying global optimum based on a consistency theory; and 4, designing an encrypted information interaction method based on a homomorphic cryptography theory according to a Paillier encryption system. The global coupling energy management optimization problem is decoupled into n sub-optimization problems, each sub-optimization problem is solved, a scheme set capable of meeting global optimum is obtained based on the consistency theory, and the privacy leakage problem in distributed energy management is solved.
Description
technical field [0001] The invention belongs to the technical field of electric power system automation, and in particular relates to a microgrid consistent distributed energy optimization management method based on homomorphic encryption privacy protection. Background technique [0002] As the power demand in the microgrid becomes more and more complex, the requirements for energy management solutions are getting higher and higher. The optimization goal of traditional distributed energy management generally only considers the power generation side. With the increase of the proportion of energy management, the load side plays an increasingly important role in energy management, which cannot be ignored; and in traditional distributed energy management, there is a problem of privacy information exposure. Partial information interaction will give privacy information thieves an opportunity, and the leakage of privacy data such as users' historical power consumption information m...
Claims
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IPC IPC(8): H02J3/00H04L9/00H04L9/40
CPCH02J3/00H04L9/008H04L63/0442H02J2203/20H02J2203/10H04L2463/062Y04S40/20
Inventor 张慧峰卓清泽岳东窦春霞胡小敬
Owner NANJING UNIV OF POSTS & TELECOMM