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基于实时感知的天然气管道动态分输控制方法
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(国家石油天然气管网集团有限公司甘肃分公司,甘肃兰州 730070)

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李鹏明,男,1991年生,工程师,从事天然气管道过程控制与自动化方面的工作。

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国家石油天然气管网集团“西三线57号阀室新增下载点项目”(202428)


Adaptive Dynamic Distribution Control Method for Natural Gas Pipelines Based on Real-Time Sensing
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(PipeChina Gansu Company,Lanzhou,Gansu 730070,China)

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    摘要:

    在天然气长输管道的分输过程中,现有的控制方法存在明显短板:恒压控制法在用户流量骤变时易出现分输量偏差;剩余平均法对需求变化的响应存在滞后性;而不均匀系数法则因依赖历史数据,导致其抗干扰能力弱。针对这些问题,以山丹分输站为实际应用对象,提出一种基于实时工况感知的自适应动态分输控制方法。该方法旨在通过动态混合控制策略,提升分输精度、压力稳定性以及系统安全性,为天然气的智能化管理提供新路径。采用“实时感知—抗干扰处理—数据整合—模糊模型—动态混合控制”的技术框架:首先,实时采集工况数据;然后,结合中位值平均滤波和归一化技术,完成数据的抗干扰处理与整合;最后,构建包含 PID压力控制、自适应流量调整与动态权重分配的模糊控制模型。与传统控制方法相比,这种自适应动态分输控制方法能有效应对天然气分输过程中压力 -流量的非线性关系,避免传统 PID控制在复杂工况下性能下降的问题。应用结果表明,该自适应动态分输控制方法具有以下优势:减少对历史数据的依赖,增强了对实时工况的适应能力;通过分级权重调整机制,兼顾了安全性与灵活性;为天然气分输站的智能化升级提供了可推广的技术方案。

    Abstract:

    During the distribution process of long-distance natural gas pipelines,significant shortcomings are observed in existing control methods:the constant pressure control method is prone to distribution volume deviations when user flow rates change abruptly,the remaining average method exhibits lag in response to demand variations,and the uneven coefficient method demonstrates weak anti-interference capability due to its reliance on historical data. To address these issues,an adaptive dynamic distribution control method based on real-time operating condition sensing is proposed,with Shandan Distribution Station as the practical application object. This method aims to enhance distribution accuracy,pressure stability, and system security through a dynamic hybrid control strategy,providing a new pathway for intelligent management of natural gas. A technical framework of "real-time sensing—anti-interference processing—data integration—fuzzy model—dynamic hybrid control" is adopted in the study:first,operating condition data are collected in real time,then,anti-interference processing and integration of the data are accomplished by combining median-average filtering and normalization techniques, finally,a fuzzy control model incorporating PID pressure control,adaptive flow adjustment,and dynamic weight allocation is constructed. Compared with traditional control methods,this adaptive dynamic distribution control method can effectively copewith the nonlinear relationship between pressure and flow during natural gas distribution,avoiding the performance degradation of traditional PID control under complex operating conditions. The application results indicate that the adaptive dynamic distribution control method offers the following advantages:dependence on historical data is reduced,and adaptability to real-time operating conditions is enhanced,a hierarchical weight adjustment mechanism is employed to balance security and flexibility,and a replicable technical solution is provided for the intelligent upgrading of natural gas distribution stations.

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  • 在线发布日期: 2026-06-03
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