relation: https://khub.utp.edu.my/scholars/711/ title: Integrated scheduling and RTO of RGP with MPC and PI controllers creator: Yusoff, N. creator: Ramasamy, M. description: 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 type: Article type: PeerReviewed identifier: 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 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-68949216989&doi=10.3923%2fjas.2009.3027.3033&partnerID=40&md5=c92fa81e61914a12403eb2b2c600653b relation: 10.3923/jas.2009.3027.3033 identifier: 10.3923/jas.2009.3027.3033