Integrated energy system weak point identification method based on unified power flow model and random matrix

An integrated energy system, random matrix technology, applied in the direction of AC network circuits, instruments, calculations, etc., can solve problems such as slow response speed and complex models

Active Publication Date: 2019-12-20
WUHAN UNIV
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Problems solved by technology

[0007] In view of this, the present invention provides a method for identifying weak points of an integrated energy system based on a unified power flow model

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  • Integrated energy system weak point identification method based on unified power flow model and random matrix
  • Integrated energy system weak point identification method based on unified power flow model and random matrix
  • Integrated energy system weak point identification method based on unified power flow model and random matrix

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Embodiment Construction

[0073] The purpose of the present invention is to propose a method for identifying weak points of the electric-thermal-gas integrated energy system based on the unified power flow model and random matrix. From the perspective of data drive, it is unnecessary to identify the physical structure of the system, and it also avoids the system modeling process , which provides a new idea for the weak identification of the integrated energy system, which can simplify the modeling process and improve the accuracy and speed of system state identification and weak point identification.

[0074] In order to achieve the above object, the main idea of ​​the present invention is as follows:

[0075] Random matrix theory is a highly universal big data analysis method. From the perspective of data-driven, the present invention introduces the random matrix theory into the integrated energy system, proposes a method for identifying weak points of the integrated energy system based on the unified...

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Abstract

The invention discloses an integrated energy system weak point identification method based on a unified power flow model and a random matrix. The integrated energy system weak point identification method comprises the following steps of: (1) establishing an integrated energy system unified power flow model; (2) selecting power flow data and establishing a random matrix; (3) standardizing and preprocessing the random matrix; (4) identifying the abnormal state of the system; and (5) identifying weak points of the system. Methods of the invention may be provided. According to the invention, a random matrix theory is introduced into integrated energy system weak identification; the operation state of the system is analyzed in a data driving mode, the physical structure of the comprehensive energy system does not need to be identified, the modeling process of the comprehensive energy system is avoided, the complexity of the physical structure and the modeling process of the comprehensive energy system is overcome, and the accuracy and rapidity of system state identification and weak point identification are improved.

Description

technical field [0001] The invention relates to the technical field of identification of weak links in an integrated energy system, in particular to a method for identifying weak points in an integrated energy system based on a unified power flow model and a random matrix. Background technique [0002] With the increasing scarcity of fossil energy and the deterioration of the environment, the use of integrated energy systems to realize the integrated planning, design and operation optimization of various energy sources such as electricity, heat, and gas, and to improve the comprehensive utilization efficiency of energy has become the only way to change the energy field of human society. . However, the tight coupling of various energy systems makes IES (Integrated Energy System) need to consider the transmission rate of lines or pipelines of different energy systems, the mutual conversion of different energy sources, and energy supply efficiency. These make the integrated en...

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Application Information

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IPC IPC(8): H02J3/00G06F17/50
CPCH02J3/00
Inventor 朱丹蕾王红霞罗鹏徐剑冰李进昌白帆
Owner WUHAN UNIV
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