Dynamic modeling and linear model predictive control of gas pipeline networks

Autor: Guang-Yan Zhu, Michael A. Henson, Lawrence Megan
Rok vydání: 2001
Předmět:
Zdroj: Journal of Process Control. 11:129-148
ISSN: 0959-1524
DOI: 10.1016/s0959-1524(00)00044-5
Popis: A linear model predictive control (LMPC) strategy is developed for large-scale gas pipeline networks. A nonlinear dynamic model of a representative pipeline is derived from mass balances and the Virial equation of state. Because the full-order model is illconditioned, reduced-order models are constructed using time-scale decomposition arguments. The first reduced-order model is used to represent the plant in closed-loop simulations. The dimension of this model is reduced further to obtain the linear model used for LMPC design. The LMPC controller is formulated to regulate certain pipeline pressures by manipulating production setpoints of cryogenic air separation plants. Both input and output variables are subject to operational constraints. Three methods for handling output constraint infeasibilities are investigated. # 2001 Elsevier Science Ltd. All rights reserved.
Databáze: OpenAIRE