eprintid: 711 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/07/11 datestamp: 2023-11-09 15:48:51 lastmod: 2023-11-09 15:48:51 status_changed: 2023-11-09 15:23:00 type: article metadata_visibility: show creators_name: Yusoff, N. creators_name: Ramasamy, M. title: Integrated scheduling and RTO of RGP with MPC and PI controllers ispublished: pub keywords: Integrated frameworks; Integrated scheduling; Natural gas liquids; Optimal trajectories; Proportional integral controllers; Real-time optimization; Sequential quadratic programming algorithm; Steady-state models, Gas plants; Model predictive control; Optimization; Predictive control systems, Scheduling note: cited By 0 abstract: This study proposes an integrated framework of scheduling and Real-Time Optimization (RTO) of a Refrigerated Gas Plant (RGP). At the top layer, a high fidelity dynamic model of RGP is subjected to scheduling of plant operating mode from natural gas liquids to sales gas and vice-versa. Set points from mode scheduling are passed down to the steady-state RTO layer. Modeling mismatch is minimized by rigorously exchanging values of key variables between dynamic and steady-state models. Optimal trajectories of set points are obtained using sequential quadratic programming algorithm with constraints. These trajectories are disjointedly implemented by Model Predictive Control (MPC) scheme and Proportional-Integral (PI) controllers for comparison. Four case studies for each mode scheduling are performed to illustrate efficacy of the proposed approach. date: 2009 official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-68949216989&doi=10.3923%2fjas.2009.3027.3033&partnerID=40&md5=c92fa81e61914a12403eb2b2c600653b id_number: 10.3923/jas.2009.3027.3033 full_text_status: none publication: Journal of Applied Sciences volume: 9 number: 17 pagerange: 3027-3033 refereed: TRUE issn: 18125654 citation: Yusoff, N. and Ramasamy, M. (2009) Integrated scheduling and RTO of RGP with MPC and PI controllers. Journal of Applied Sciences, 9 (17). pp. 3027-3033. ISSN 18125654