Transient Operation Optimization Technology of Gas Transmission Pipeline: A Case Study of West-East Gas Transmission Pipeline

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Abstract
As the operation process of natural gas pipeline are affected by gas sources and the fluctuation of consumers’ gas consumption, and the operation state changes with time, the transient optimization technology is more accurate and reliable for analysis. Based on the previous researches, this paper established a transient optimization model of natural gas pipeline for the purpose of minimum energy consumption. The model designer considered the switching condition of the compressor and the terminal condition of pipeline, introduced the measures of “pressure-regulating” and “flow-restricted”, and proposed a heuristic algorithm. The case analysis of West-East Gas Pipeline I showed that the optimization calculation can be completed within 15 minutes by an ordinary computer within a 24-hour optimization period. Moreover, the feasibility of the model and the calculation method is verified by the comparison between the result of transient operation optimization and that of steady operation optimization.
Funding Information
  • Sichuan Applied Basic Research (2019YJ0352)
  • Sichuan Provincial Natural Resources Research (KJ-2019-11)

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