Method for designing simplified model of comprehensive energy system based on balance transformation theory

A technology of integrated energy system and simplified model, which is applied in the field of simplified model design of integrated energy system based on balance transformation theory, and can solve problems such as complex integrated energy system model

Active Publication Date: 2019-08-09
NARI TECH CO LTD +1
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Problems solved by technology

[0005] In order to solve the problem that the existing comprehensive energy system model is too complex, the present invention provides a simplified model design method of the comprehensive energy system based on the balance transformation theory, which reduces the complexity of the model without affecting the description of the dynamic characteristics of the comprehensive energy system. Energy system simulation platform establishment and control strategy design provide model basis

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  • Method for designing simplified model of comprehensive energy system based on balance transformation theory
  • Method for designing simplified model of comprehensive energy system based on balance transformation theory
  • Method for designing simplified model of comprehensive energy system based on balance transformation theory

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[0056] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0057] Such as figure 1 As shown, a simplified model design method for an integrated energy system based on the balance transformation theory includes the following steps:

[0058]1. Establish dynamic models and electrical network equations of boilers, steam turbines, generators, natural gas pipelines, energy storage batteries and fans;

[0059] 2. Combine all dynamic models and electrical network equations to obtain the overall complex model of the comprehensive energy system described by high-order nonlinear differential-algebraic equations;

[0060] 3. Obtain the high-order linear differential equation of the integrated energy system through model linearization and interface expansion;

[...

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Abstract

The invention discloses a method for designing a simplified model of a comprehensive energy system based on a balance transformation theory. The method comprises the following steps of: establishing dynamic models and electric network equations of a boiler, a steam turbine, a generator, a natural gas pipeline, an energy storage battery and a fan; combining all the dynamic models and the electric network equations to obtain an integral complex model of the comprehensive energy system described by a high-order nonlinear differential-algebraic equation set; obtaining a high-order linear differential equation of the comprehensive energy system described by general differential equation systems through model linearization and interface expansion; and performing dimensionality reduction and simplification on the high-order linear model by using a balance transformation theory to obtain a simplified model of the comprehensive energy system. The method for designing a simplified model providedby the invention can reduce the complexity of the model on the premise of not influencing the main dynamic characteristics of the comprehensive energy system, and provides a model basis for the establishment of a simulation platform and a control algorithm of the comprehensive energy system.

Description

technical field [0001] The invention belongs to the technical field of comprehensive energy system modeling, and in particular relates to a design method for a simplified model of a comprehensive energy system based on balance transformation theory. Background technique [0002] Energy is the basis for human development. Considering the non-renewability of fossil energy, an integrated energy system that integrates various heterogeneous energies such as electricity, gas, heat, water and cooling will become the main energy-carrying mechanism in the future, which can realize Improve energy utilization efficiency and improve energy supply reliability. In order to analyze the interactive conversion relationship in the dynamic process of heterogeneous energy flow in the integrated energy system, it is necessary to conduct a unified modeling of the integrated energy system. [0003] Traditional integrated energy systems often only consider the establishment of models based on alge...

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Application Information

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IPC IPC(8): H02J3/38G06F17/50
CPCH02J3/38G06F30/367H02J2203/20
Inventor 郑涛陈玉慧姚家豪吴烁民曹敬陈春宇王丙文王颖杨宇峰王鹴柳纲程炜池亚微
Owner NARI TECH CO LTD
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