Islanded microgrid security analysis method based on physical information neural network

By combining physical information neural networks and traditional power flow calculation models, the real-time performance and computational efficiency issues of static security analysis in islanded microgrids are solved, achieving efficient and adaptive security assessment, which is particularly suitable for high volatility scenarios.

CN122159224APending Publication Date: 2026-06-05XIAN UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN UNIV OF TECH
Filing Date
2026-02-06
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies lack a systematic methodology for static security analysis of isolated microgrids, making it difficult to meet real-time and computational efficiency requirements. Furthermore, data-driven methods are limited in application within power systems and cannot effectively utilize historical data to enhance analytical intelligence.

Method used

We employ a Physical Information Neural Network (PINN) approach, combining traditional power flow calculation models and data-driven methods. By constructing a deep learning model and embedding a physical constraint loss function, we achieve efficient and adaptive safety assessment.

Benefits of technology

It achieves efficient, adaptive and strongly constrained safety assessment of isolated microgrids, can dynamically modify the admittance matrix for N-1 verification, and combines computational efficiency with physical interpretability, making it suitable for high volatility scenarios.

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Abstract

The application discloses a physical information neural network-based island micro-grid safety analysis method, and steps include: step 1, establishing a micro-grid power flow analysis model; step 2, constructing a physical information neural network; step 3, constructing a static safety analysis model based on the physical information neural network, including: 3.1) data processing; 3.2) constructing a basic framework of a deep learning model; 3.3) constructing an overall framework of static safety analysis, and completing static safety analysis.The application belongs to the technical field of power system automation and artificial intelligence, and solves the problem that the existing PINN lacks a systematic method system in the application in the power system, and the evaluation efficiency and results are difficult to meet the requirements.
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