Invention Grant
- Patent Title: Method for dynamic state estimation of natural gas network considering dynamic characteristics of natural gas pipelines
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Application No.: US17322912Application Date: 2021-05-18
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Publication No.: US11972182B2Publication Date: 2024-04-30
- Inventor: Hongbin Sun , Qinglai Guo , Bin Wang , Guanxiong Yin , Zhaoguang Pan , Binbin Chen
- Applicant: TSINGHUA UNIVERSITY
- Applicant Address: CN Beijing
- Assignee: TSINGHUA UNIVERSITY
- Current Assignee: TSINGHUA UNIVERSITY
- Current Assignee Address: CN Beijing
- Priority: CN 2010447971.6 2020.05.25
- Main IPC: G06F30/28
- IPC: G06F30/28 ; G06F17/16 ; G06F111/10

Abstract:
Provided is a method for a dynamic state estimation of a natural gas network considering dynamic characteristics of natural gas pipelines. The method can obtain a result of the dynamic state estimation of the natural gas network by establishing an objective function of the dynamic state estimation of the natural gas network, a state quantity constraint of a compressor, a state quantity constraint of the natural gas pipeline and a topological constraint of the natural gas network, and using a Lagrange method or an interior point method to solve a state estimation model of the natural gas network. The method takes the topological constraint of the natural gas network into consideration, and employs a pipeline pressure constraint in a frequency domain to implement linearization of the pipeline pressure constraint, thereby obtain a real-time, reliable, consistent and complete dynamic operating state of the natural gas network.
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