天然气管道的运行优化

Operation Optimization of Natural Gas Pipeline

从优化方式、优化途径、目标函数、约束条件、求解方法等方面对天然气管道运行优化的基本内容进行了论述。分析认为,对于干线管网,大多数情况下可以选择稳态优化;影响优化难度与复杂性的主要因素是压缩机的可行域约束、管网流程方程约束以及优化模型中出现的离散变量;动态规划是求解枝状管网的一种有效方法;领域类搜索算法虽然要求较低,但其实用性仍有待于进一步研究。

Based on literature investigation,the basic contents of gas pipeline operation optimization such as optimization mode,optimization approaches,objective function,constraint conditions and solving methods are discussed according to recent research results.Research shows that steady state optimization could be chosen for trunk line networks in most cases;main factors influencing on optimization difficulty and complexity are feasi ble domain constraint of compressors,pipeline network flow equations constraint and discrete variables in optimization model;dynamic programming is an effective method for solving branch pipeline networks;and neighborhood search algorithms have low requirements,but its practicability needs further study.