Energy flow acquisition system and device of natural gas pipeline model and medium

Abstract

The invention discloses an energy flow acquisition system and device for a natural gas pipeline model and a medium, and the system comprises a model building module which is used for the modeling of an element in a natural gas network; a parameter acquisition module, used for acquiring topological network and element parameters of the natural gas network according to the model established in the model establishment module; an energy flow calculation module, the energy flow calculation module being used for calculating an energy flow coefficient in the natural gas pipeline according to the acquired topological network and element parameters. A dynamic model is established for the natural gas system on the basis of a steady-state model of a key element of the natural gas system, gas continuity, energy balance and a motion equation. The power flow of the natural gas system is analyzed by adopting a power flow solving method, and when the pressure of each node of the natural gas system isobtained, the power flow distribution of the whole natural gas system can be determined.

Description

technical field [0001] The present application relates to the technical field of natural gas pipelines, in particular to an energy flow acquisition system, equipment and medium of a natural gas pipeline model. Background technique [0002] The modeling of the multi-energy flow system involves the mathematical, physical or logical description of the energy system, network, conversion unit and other objects, and the simulation is the means and method of running the model on the computer over time. Models are the basis of simulation, mainly including physical models and economic models. The former aims at the energy resources of the multi-energy flow regional energy system, collecting gas turbine equipment, photovoltaic power generation system, battery energy storage system, cold storage and heat storage equipment, hydrogen production equipment with surplus electric energy, electric vehicle charging management, power pipe network, heat pipe network and Natural gas pipeline net...

AI Technical Summary

Problems solved by technology

[0003] Among the existing technologies, for example, the literature "Optimal Power Flow of Multiple Energy Carriers" considers the optimal power flow problem of the steady-state power network and the natural gas network to model the natural gas system, only considering the gas static equation of the natural gas in the pipeline , does not consider the role of natural gas pipeline storage, and thus cannot take into account the application of this model in multi-energy flow system planning (too many gas storage facilities are arranged)

The literature "A Decomposed Solution to Multiple-Energy Carriers Optimal Power Flow" decomposes the multi-energy flow problem into a traditional single-energy flow problem, and cannot integrate and unify calculation and analysis methods

The literature "Study on Electricity / Gas / Heat Mixed Power Flow Algorithm of Regional Integrated Energy System" adopts the energy hub model and is based on the sequential solution method, which simplifies the calculation process for engineering applications and cannot accurately reflect the energy flow in components

[0004] However, for the steady-state model of natural gas pipeline flow and pipeline storage model, the steady-state model modeling of non-pipeline components such as compressors and gas storage facilities is different from the traditional single energy flow application scenario, and multiple energy flow applications have not been considered yet. Natural gas pipeline model of the scene

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