Working state evaluation method for multi-energy flow system based on energy network equation

A technology of network equation and working state, applied in the field of comprehensive energy system analysis

Active Publication Date: 2019-04-16
SOUTH CHINA UNIV OF TECH +1
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  • Application Information

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Problems solved by technology

At present, the industry has not yet developed a method to establish a unified model and a unified energy net

Method used

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  • Working state evaluation method for multi-energy flow system based on energy network equation
  • Working state evaluation method for multi-energy flow system based on energy network equation
  • Working state evaluation method for multi-energy flow system based on energy network equation

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Embodiment Construction

[0040] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0041] See Figure 1-4 A method for evaluating the working status of a multi-energy flow system based on energy network equations, including:

[0042] S1. Use heat and electric energy to jointly heat N independent spaces to establish an energy network, where N≥2; the energy network includes a hot water sub-network and an electric sub-n...

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Abstract

The invention relates to a working state evaluation method for a multi-energy flow system based on an energy network equation. The method comprises: S1, heat energy and electric energy are used for jointly heating N independent spaces, and an energy network is established; S2, an energy network equation set is established for the energy network according to the generalized Kirchhoff intensity lawand the generalized Kirchhoff broadening law; S3, combining constraint conditions of the energy network equation set and the energy system to form a complete equation set; and converting the physicalquantities of different units in the energy network equation set into dimensionless parameters by adopting a per unit system calculation method, and uniformly solving to obtain the working state of each unit device. For a complex energy network, a uniform model and a uniform energy network equation are established and solved by using a scheme method, so that the working state of each device in thenetwork can be conveniently obtained.

Description

Technical field [0001] The invention relates to the technical field of integrated energy system analysis, in particular to a working state evaluation method of a multi-energy flow system based on an energy network equation. Background technique [0002] The use of renewable and clean energy such as wind power and photovoltaics has become an inevitable trend. These renewable energy sources are highly uncertain, and the power generation is difficult to control, and access to the grid is likely to cause grid fluctuations. Therefore, only the power grid as the carrier of energy transmission has gradually been unable to meet the demand. Under this circumstance, the Energy Internet, which transmits energy in multiple forms of electricity, heat, cooling, and gas, has its advantages. At present, there are more and more demonstrations of the Energy Internet. Among the above-mentioned multi-energy networks, the combined heat and power network is currently developing the fastest. Since the...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y04S10/50
Inventor 韩光泽陈皓勇
Owner SOUTH CHINA UNIV OF TECH
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