Natural gas pipeline network operation regulation and control method based on self-adaptive dynamic planning

A natural gas pipeline network and dynamic programming technology, applied in the direction of electric controllers, controllers with specific characteristics, etc., can solve the problem of inability to complete the initial steady state of the pipeline network operation state to the target steady state, without considering the working state of the compressor, etc. question

Inactive Publication Date: 2014-11-26
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a natural gas pipeline network operation control method based on adaptive dynamic programming, aiming to solve the problem that the existing low-selection PID control strategy is used to control the operating state without considering the working state of the compressor However, the problem that the transition process of the pipeline network operation state from the initial steady state to the target steady state cannot be completed

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  • Natural gas pipeline network operation regulation and control method based on self-adaptive dynamic planning
  • Natural gas pipeline network operation regulation and control method based on self-adaptive dynamic planning
  • Natural gas pipeline network operation regulation and control method based on self-adaptive dynamic planning

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Embodiment 1

[0130] 1. Propose the unique correspondence principle between the pipeline capacity change and the target steady state under the given initial steady state;

[0131] The flow of natural gas in the pipeline satisfies the flow balance condition and motion equation:

[0132] ∂ P ∂ t + a 2 A ∂ M ∂ x = 0 - - - ( 1 )

[0133] ∂ P ∂ x + 1 A ∂ M ∂ t + λ ...

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Abstract

The invention discloses a natural gas pipeline network operation regulation and control method based on self-adaptive dynamic planning. The natural gas pipeline network operation regulation and control method based on self-adaptive dynamic planning includes the steps of: putting forward and proving a principle of unique correspondence of a pipe capacity change and a target steady state in a given initial steady state; establishing an optimization control model of a pipeline network operating state; and adopting a self-adaptive dynamic planning solving algorithm. The natural gas pipeline network operation regulation and control method in the invention considers both operating conditions and technological operation constraints of compressor stations in a process of determining a control strategy, satisfies the unique correspondence principle that is put forward, and thus is feasible. The natural gas pipeline network operation regulation and control method based on self-adaptive dynamic planning in the invention considers the overall situation, considers pipe capacity variation of all pipe sections in the pipeline network system, and formulates a flow control strategy of all compressor stations in a unified manner, and thus does not need to consider mutual influence of the compressor stations in a regulation process.

Description

technical field [0001] The invention belongs to the technical field of natural gas pipeline network operation regulation, and in particular relates to a natural gas pipeline network operation regulation method based on adaptive dynamic programming. Background technique [0002] Nowadays, with the increase of natural gas production and demand, the natural gas transportation pipeline network system is becoming increasingly large and complex, and the requirements for scheduling and control in the transportation process are getting higher and higher. In order to smoothly and safely complete the transportation task and obtain greater economic benefits, it is required to be able to effectively and reliably control the operating conditions such as pressure and flow during the transportation of the natural gas pipeline network. [0003] The regulation and control of the natural gas pipeline network transportation process is basically completed by components such as compressor statio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
Inventor 李立刚戴永寿
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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