Title: Control for pipeline gas distribution system
Application Number: 03807666 Application Date: 2003.01.29
Publication Number: 1647000 Publication Date: 2005.07.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G05B13/02;G06F7/60;G06F17/00;G06F17/10;G06F19/00;G05D7/00;G05D11/00;G05D16/00;B01D46/46;G01F11/00;G0
Applicant(s) Name: Praxair Technology Inc. Address:
Inventor(s) Name: Megan Lawrence;Lennox David F.;Scharf Paul F.;Adeb
Attorney & Agent: wei xinhua duan xiaoling
Abstract:
    A method of controlling a gas distribution system in which one or more air separation plants supply gaseous oxygen and nitrogen products to pipeline sections. The air separation plants are controlled by supervisory control systems that direct production rates of the gaseous products to be consumed by customers connected to the pipeline sections. The gas distribution system is controlled by a model predictive control system in which empirically determined open loop response models are used to generate open loop responses of the pipeline sections due to changes in customer demands. Optimized closed loop responses in production rate requests to the supervisory control systems are generated by model predictive control techniques.
Time: 11
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