Electricity-gas interconnected energy network model construction method and device

A technology of network model and construction method, applied in the direction of electrical digital data processing, instrumentation, computer-aided design, etc., can solve the problem of low accuracy

Pending Publication Date: 2022-02-25
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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AI Technical Summary

Benefits of technology

The technology described in this patented describes how it can predict when there will be changes or fluctuations in pressure (pump) during certain stages of production from natural gas resources such as oil well drilling operations. This allows for better control over various processes involved with producing fluids like hydrocarbons. By analyzing these models, we aimed at improving efficiency and reducing costs associated with exploration and development projects involving geothermal power generation systems.

Problems solved by technology

The technical problem addressed by this patented technology relates to improving the efficiency at integrating electricity from multiple sources into one grid for use across different locations or areas while also addressing issues such as delayed fluctuations caused by gas flows transmitted through pipes that may affect their timing accurately.

Method used

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  • Electricity-gas interconnected energy network model construction method and device
  • Electricity-gas interconnected energy network model construction method and device
  • Electricity-gas interconnected energy network model construction method and device

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Embodiment Construction

[0057] The traditional electric-gas interconnection model is mostly based on the steady-state model of the natural gas network. The steady-state model of natural gas assumes that the flow rate of the gas injected at the head end of the pipeline is the same as the flow rate of the gas output at the end. However, the applicant found through research that the actual situation is that the natural gas The transmission speed in the pipeline is slow, and the gas flow at the beginning and end of the pipeline is not the same. This difference is the main reason for the low accuracy of the existing electrical-gas interconnection model.

[0058] The embodiment of the present application provides a method and device for constructing an electric-gas interconnection energy network model, which is used to solve the technical problem of low accuracy of the existing electric-gas interconnection model.

[0059] In order to make the purpose, features and advantages of the present application more obv

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Abstract

The invention discloses an electricity-gas interconnected energy network model construction method and device. According to the method, the delay characteristic of airflow transmission is considered, the pipeline of the natural gas energy network is segmented according to the airflow parameters of the natural gas energy network, the mass conservation law and the Newton second law are combined, and a pipeline airflow dynamic equation set is established; airflow dynamic characteristics are accurately described by adopting a pipeline airflow dynamic equation set in a space-time partial differential equation form, and then a natural gas energy network model is constructed based on the pipeline airflow dynamic equation set in combination with pipeline transportation constraint conditions of the natural gas energy network. And finally, on the basis of the natural gas energy network model, an electricity-gas interconnected energy network model considering the dynamic characteristics of the gas flow is constructed. The technical problem of low accuracy caused by the fact that the delay characteristics of gas flow transmission are not considered in the prior art is solved.

Description

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Claims

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Application Information

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Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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