计量学报2025，Vol.46Issue(5)：687-692,6.DOI:10.3969/j.issn.1000-1158.2025.05.10
基于局部节点的非稳态天然气管网能量计量赋值算法
Energy Metering Assignment Algorithm for Unsteady Natural Gas Pipeline Network Based on Local Nodes
摘要
Abstract
In order to ensure the reliability of energy metering for the Zhejiang natural gas pipeline network,a local energy assignment algorithm was established.The assignment algorithm was based on the hydraulic relationship between the pressure difference and flow quantity of a single pipeline,and taking into account the local characteristics of natural gas pipeline network.By using the established local energy assignment algorithm,the natural gas pipeline energy of Hangzhou Station,Yongkang Station and Xiasha Station in Zhejiang Province was calculated,and the calculated results were compared with the measured values.The relative error between the calculated values and the measured values was within 0.6%,it met the criterion in the provisions of OIML R140 and GB/T 18603-2014 Technical Requirements,indicating the reliability of the assignment algorithm,and providing guarantee for the natural gas transaction,where the criterion requires the maximum permissible error of energy metering of assignment algorithm should within 0.6%.关键词
流量计量/非稳态能量计量/赋值算法/天然气管网/多气源Key words
flow mesurement/unsteady energy metering/assignment algorithm/natural gas pipeline network/multiple gas sources引用本文复制引用
许飞,胡巍,杨才浩,高晓燕,包福兵,张亚宁..基于局部节点的非稳态天然气管网能量计量赋值算法[J].计量学报,2025,46(5):687-692,6.基金项目
国家自然科学基金青年科学基金(12102418) （12102418）
浙江省自然科学基金探索项目(LQ21A020007) （LQ21A020007）
青年科技创新人才培养项目(乙类)(2021YW48) （乙类）
