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A general matrix modeling method for multi-energy systems 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: 2022-06-28
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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  • A general matrix modeling method for multi-energy systems based on graph theory and network flow
  • A general matrix modeling method for multi-energy systems based on graph theory and network flow
  • A general matrix modeling method for multi-energy systems based on graph theory and network flow

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Embodiment Construction

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

[0105] (1) Construction of 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 types of equipment and energy flow in MES into a binary relationship between nodes and branches. Refer to 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). The energy flow lossless network diagram is constructed according to the following steps: (1) The energy conversion equipment, energy distribution equipment, energy storage equipment and various loads in the MES are abstracted into nodes, which are called conversion nodes, distribution n...

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Abstract

The present invention is a general matrix modeling method for multi-energy systems based on graph theory and network flow, characterized in that, first, a set of new definitions are proposed to construct a unified energy flow network for multi-energy systems including energy storage ;Secondly, the matrix describing the topology and energy conversion characteristics of the multi-energy system is given; on this basis, the modeling process of the energy flow equation matrix is ​​expounded; then, the matrix analysis is applied to obtain the coupling matrix. It is suitable for MES with relatively simple structure, and it is also suitable for processing systems with multiple energy distribution devices or conversion devices in the topology; no matter for simple or complex systems, it is a sparse matrix, so the calculation amount is small. The invention has the advantages of scientific rationality, strong 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 mode of separate planning, design and independent operation of various energy supply systems such as electricity, gas, cooling, and heat, which coordinate and optimize the allocation, conversion, storage and consumption of various energy sources. , increasing the efficiency and flexibility of the energy system. MES connects multiple energy sources through complex coupling and connection through energy distribution, conversion and storage equipment. How to model this complex coupling relationship of multiple energy flows is the basic work for carrying out MES optimization operation and planning research. [0003] At present, scholars at home and abroad have carried out extensive resear...

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Application Information

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Patent Type & Authority Patents(China)
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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