Power Distribution Network Regulation With Privacy-Preserving Load Control
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Solution Overview
Problem
Existing regulation strategies for multi-component power distribution networks with a high proportion of distributed power sources fail to balance economic benefits and safe operation while inadequately protecting user privacy, as they require extensive user information acquisition.
Innovation Solution
A collaborative regulation method using a PID-Lagrange algorithm, where a regulation center and users perform iterative calculations based on user voltage information to minimize economic cost and voltage deviation, with the regulation center only collecting voltage data and sending regulation signals, thus minimizing information interaction and protecting user privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If extensive user information is acquired for regulation, then regulation accuracy is improved, but user privacy protection deteriorates
Solution Approach 1:
The patent extracts only the necessary voltage information from user data while leaving sensitive personal information at the user end. The regulation center receives and processes only voltage measurements, not complete user profiles or consumption patterns, thereby achieving regulation accuracy with minimal privacy intrusion
Solution Approach 2:
The patent introduces an intermediary calculation mechanism where users perform local computations on their own data and send only intermediate results to the regulation center. This mediator approach allows accurate regulation calculations without requiring the regulation center to access or store sensitive user information
2Measurement precision
If complete user information is collected for optimization calculation, then calculation accuracy is improved, but information interaction amount increases
Solution Approach 1:
The patent segments the optimization calculation into distributed parts performed by users and a centralized part performed by the regulation center. Users calculate local optimization results based on their own information, then send only essential parameters to the regulation center, reducing communication overhead while maintaining overall calculation accuracy
Solution Approach 2:
The patent enables users to perform self-service calculations using their own information locally. This distributed computation approach allows accurate optimization without requiring centralized collection of all user data, thereby minimizing information interaction while preserving calculation precision
Data Source
AI summary
A method and system for regulating a multi-component power distribution network with high proportion of distributed power sources. The method includes: the distribution network regulation center acquiring user voltage information; the information and optimization model, performing iterative calculation of corresponding preset control objectives for the distribution network regulation center in the optimization model by a Lagrange algorithm, simultaneously controlling errors of the control objectives in the iterative calculation process by a Proportional-Integral-Differential (PID) algorithm, for acquiring a regulation signal of a user side local load, and sending the user side's local load regulation signal to the user side; and performing iterative calculation of control objectives based on the regulation signal of the local load and the calculation part of the optimization model user side, and simultaneously controlling errors of the control objectives in the iterative calculation process by the PID controller, to regulate the local load.