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Multi-energy system general matrix modeling method based on graph theory and network flow

A modeling method and multi-energy technology, applied in special data processing applications, complex mathematical operations, geometric CAD, etc., to achieve the effect of reducing the amount of calculation

Active Publication Date: 2021-10-19
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

[0004] The purpose of the present invention is to propose a general matrix modeling method for multi-energy systems based on graph theory and network flow, thereby solving the problem of the generality of matrix modeling methods

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  • Multi-energy system general matrix modeling method based on graph theory and network flow
  • Multi-energy system general matrix modeling method based on graph theory and network flow
  • Multi-energy system general matrix modeling method based on graph theory and network flow

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Embodiment Construction

[0104] The present invention will be further described below using the accompanying drawings and actual calculation examples.

[0105] (1) Construction of a unified energy flow network

[0106] A general matrix modeling method for multi-energy systems based on graph theory and network flow of the present invention abstracts the coupling relationship between various equipment and energy flow in MES as a node-branch binary relationship. figure 1 , a typical MES system model is given, including transformer (T), combined heat and power unit (CHP), auxiliary boiler (AB), compression refrigerator (CERG), absorption refrigerator (WARG), power storage device ( ES). Follow the steps below to construct a lossless network diagram of energy flow: (1) Abstract the energy conversion equipment, energy distribution equipment, energy storage equipment and various loads in the MES into nodes, which are called conversion nodes, distribution nodes, energy storage nodes and The load nodes form a...

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Abstract

The invention relates to a multi-energy system general matrix modeling method based on a graph theory and network flow, which is characterized by comprising the following steps of: firstly, providing a group of new definitions to construct a unified energy flow network of the multi-energy system including energy storage; secondly, giving a matrix for describing a topological structure and energy conversion characteristics of the multi-energy system; on the basis, elaborating an energy flow equation matrix modeling process; and then, applying matrix analysis to obtain a coupling matrix. The method is suitable for an MES with a relatively simple structure and is also suitable for processing a system with a plurality of energy distribution devices or conversion devices in a topological structure; a sparse matrix is adopted for both a simple system and a complex system, so that the calculation amount is small. The method has the advantages of scientificity, reasonability, high practicability and good effect.

Description

technical field [0001] The invention relates to the technical field of multi-energy flow system modeling, and is a general matrix modeling method for multi-energy systems based on graph theory and network flow. Background technique [0002] The construction of a multi-energy system breaks the pattern of separate planning, design and independent operation of various energy supply systems such as electricity, gas, cooling, and heat. It coordinates and optimizes the allocation, conversion, storage, and consumption of various energy sources. , improving the efficiency and flexibility of the energy system. MES is a complex coupling connection of various energy sources through energy distribution, conversion and storage equipment. How to model this complex multi-energy flow coupling relationship is the basic work for MES optimization operation and planning research. [0003] At present, scholars at home and abroad have carried out extensive and extensive research on the systemat...

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Application Information

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IPC IPC(8): G06F30/20G06F30/18G06F17/16
CPCG06F30/20G06F30/18G06F17/16
Inventor 黄大为于娜卫佳惠杜宇博罗宪民
Owner NORTHEAST DIANLI UNIVERSITY
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