一种改进的天然气管网流动方程表示方法

An Improved Flow Equation of Gas Pipeline Networks:New Expression Method

针对应用关联矩阵法在描述天然气管网流动方程时未考虑压气站的自耗气,在准确描述该部分气量的模型中易产生偏差的问题,通过增加自耗气源向量的方法对此进行了改进,可以完整地描述这部分天然气,准确地对管网的结构和管网的流动方程进行描述。

Aiming at the problem of the consumable gas at compressor stations uncalculated in the past and the deviated result unavoidable in model describing that part of gas amount nicely in pipeline networks flow equations with incidence matrix method, the paper puts forward a method for improvement by increasing consumable gas source vector, which can describe the consumable gas in the stations completely and give a good picture of the structure and flow equations of pipeline networks properly.