Nonlinear Dynamic Energy Flow Calculation for Integrated Gas and Power System Based on Method of Lines
Publication: Journal of Energy Engineering
Volume 149, Issue 1
Abstract
The rapid development of gas turbine (GT) and power-to-gas (P2G) technology promotes the integration of power systems (PS) and natural gas systems (NGS). To accurately describe the state distribution, this paper first introduces the model of integrated gas and power system (IGPS) governed by nonlinear partial differential-algebraic equations (PDAEs). A third-order method of lines (MoL) is proposed to solve the nonlinear partial differential equations (PDEs) in the natural gas system. The distribution of mathematical equations and variables in the energy flow model is then analyzed. The solution strategy for nonlinear dynamic energy flow calculation (EFC) in integrated gas and power system is then developed, including the equation set formulation, solvability analysis, and initial guess selection method. Finally, the accuracy and efficiency of the proposed method are verified through simulation in two different cases.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the article.
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Information & Authors
Information
Published In
Journal of Energy Engineering
Volume 149 • Issue 1 • February 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Mar 3, 2022
Accepted: Aug 21, 2022
Published online: Nov 1, 2022
Published in print: Feb 1, 2023
Discussion open until: Apr 1, 2023
ASCE Technical Topics:
- Continuum mechanics
- Deformation (mechanics)
- Differential equations
- Energy engineering
- Energy infrastructure
- Energy methods
- Energy sources (by type)
- Engineering fundamentals
- Engineering mechanics
- Equations (by type)
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid mechanics
- Fuels
- Gas flow
- Hydrologic engineering
- Infrastructure
- Lifeline systems
- Mathematics
- Natural gas
- Non-renewable energy
- Nonlinear analysis
- Nonlinear response
- Petroleum
- Solid mechanics
- Structural analysis
- Structural behavior
- Structural engineering
- Structural mechanics
- Water and water resources
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