城市多压力级制燃气管网分层优化方法

The Hierarchical Optimization of Urban Natural Gas Network with Multi Pressure Ranges

天然气作为一种清洁能源,近年来发展迅猛,相应的产业和管网等基础设施建设也日益完善。城市多压力级制燃气管网的优化调度能够有效提高燃气系统的稳定性、运营经济性,已经成为一类具有实际应用价值的重要研究问题。在本文中,我们针对这个问题的特征,提出了一种分层的非线性规划模型进行建模,并结合牛顿-拉夫逊方法和内点法提出一种分层优化算法进行了求解3最后,在仿真和实际的多个案例上,对算法有效性进行了测试。

Natural gas,one of the renewable resources,has developed rapidly in recent years,which has promoted the infrastructure construction of pipe networks.The operation optimization of urban natural gas network with multi pressure ranges can effectively improve the stability and operation cost of the gas system,which has become an important research problem with practical interest.In this paper,we work on this problem and formulate it as a hierarchical nonlinear programming model.Combining Newton-Raphson method and interior point method,we propose a hierarchical optimization algorithm to solve this problem.Finally,the effectiveness of the algorithm is demonstrated by numeral results.