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Correlation-considered interval energy flow calculation method for electric-thermal-hydrogen integrated energy system

An integrated energy system and energy flow calculation technology, applied in the field of electric-thermal-hydrogen integrated energy system interval energy flow calculation, can solve complex and time-consuming problems, improve calculation efficiency, reduce solution difficulty, and maintain calculation accuracy Effect

Active Publication Date: 2021-08-20
FUZHOU UNIV
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Problems solved by technology

[0006] Firstly, the steady-state energy flow model of the comprehensive energy system is established by combining the power network model, thermal network model, hydrogen network model and coupling equipment model; secondly, the parallelogram model is used to deal with the correlation between interval variables to obtain more accurate energy flow interval boundary; then, combined with the comprehensive energy system model and the correlation model, the comprehensive energy interval energy flow optimization model is established, and for the complex and time-consuming problems of the optimization model with multi-energy flow equations, the linear optimization method and the determination of Alternative iterative calculation of interval energy flow results by flow method

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  • Correlation-considered interval energy flow calculation method for electric-thermal-hydrogen integrated energy system
  • Correlation-considered interval energy flow calculation method for electric-thermal-hydrogen integrated energy system
  • Correlation-considered interval energy flow calculation method for electric-thermal-hydrogen integrated energy system

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[0091] In order to make the features and advantages of this patent more obvious and easy to understand, the following special examples are described in detail as follows:

[0092] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0093] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, ...

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Abstract

The invention provides a correlation-considered interval energy flow calculation method for an electric-thermal-hydrogen integrated energy system, which comprises the following steps of: firstly, establishing a steady-state energy flow model of the integrated energy system by combining a power network model, a thermal network model, a hydrogen network model and a coupling equipment model; secondly, a parallelogram model is adopted to process correlation between interval variables so as to obtain a more accurate energy flow interval boundary; thirdly, a comprehensive energy system model and the correlation model are combined, a comprehensive energy interval energy flow optimization model is established, and an interval energy flow result is calculated alternately and iteratively by adopting a linear optimization method and a performance flow determination method for solving the problems that an optimization model containing a multi-energy flow equation is complex in solution and long in consumed time. According to the method, the accuracy of the calculation result can be ensured while the interval energy flow calculation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of comprehensive energy systems, and in particular relates to a method for calculating energy flow between electric-thermal-hydrogen comprehensive energy systems in consideration of correlation. Background technique [0002] The integrated energy system can realize the flexible conversion between multiple energy sources, which is conducive to improving the utilization efficiency of renewable energy. Energy flow calculation is an important basis for the operation analysis of integrated energy systems. However, there are uncertainties in renewable energy, electric loads, heat loads, and hydrogen loads in integrated energy systems, which bring uncertainty to the operating status of the system. Therefore, , it is necessary to carry out the research on the uncertain energy flow of the integrated energy system. [0003] Uncertain power flow includes probabilistic power flow, fuzzy power flow and interval power fl...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q50/06
CPCG06F30/20G06Q50/06
Inventor 江岳文陈宇辛
Owner FUZHOU UNIV
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