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Linear Model Predictive Control of an Entrained-flow Gasifier for an IGCC Power Plant
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  • Journal title : Korean Chemical Engineering Research
  • Volume 52, Issue 5,  2014, pp.592-602
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2014.52.5.592
 Title & Authors
Linear Model Predictive Control of an Entrained-flow Gasifier for an IGCC Power Plant
Lee, Hyojin; Lee, Jay H.;
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In the Integrated Gasification Combined Cycle (IGCC), the stability of the gasifier has strong influences on the rest of the plant as it supplies the feed to the rest of the power generation system. In order to ensure a safe and stable operation of the entrained-flow gasifier and for protection of the gasifier wall from the high internal temperature, the solid slag layer thickness should be regulated tightly but its control is hampered by the lack of on-line measurement for it. In this study, a previously published dynamic simulation model of a Shell-type gasifier is reproduced and two different linear model predictive control strategies are simulated and compared for multivariable control of the entrained-flow gasifier. The first approach is to control a measured secondary variable as a surrogate to the unmeasured slag thickness. The control results of this approach depended strongly on the unmeasured disturbance type. In other words, the slag thickness could not be controlled tightly for a certain type of unmeasured disturbance. The second approach is to estimate the unmeasured slag thickness through the Kalman filter and to use the estimate to predict and control the slag thickness directly. Using the second approach, the slag thickness could be controlled well regardless of the type of unmeasured disturbances.
IGCC;Gasifier;Slag;MPC;Inferential Control;
 Cited by
수학적 모델링 방법에 기초한 복합발전 공정의 정상상태 모사시스템 개발,김신혁;이시황;주용진;이상욱;손병모;오민;

Korean Chemical Engineering Research, 2015. vol.53. 5, pp.545-552 crossref(new window)
Process Modeling System of a Combined Cycle Plant for Steady State Simulation with Model Based Approach, Korean Chemical Engineering Research, 2015, 53, 5, 545  crossref(new windwow)
"2010 Worldwide gasification database," US Department of Energy's National Energy Technology Laboratory(2010).

Paek, M., "300MW IGCC Gasification Plant Engineering and Technology Development Status," Green Energy International Business Conference, Daegu, Korea(2011).

"The 6th basic plan on electricity demand," Ministry of knowledge economy of Korea government, Korea(2013).

Phillips, J., "CoalFleet RD&D Augmentation Plan for Integrated Gasification Combined Cycle(IGCC) Power Plants," EPRI, Palo Alto, CA(2006).

Rao, A., "Combined cycle systems for near-zero emission power generation," Woodhead Publishing(2012).

Seggiani, M., "Modelling and Simulation of Time Varying Slag Flow in a Prenflo Entrained-flow Gasifier," Fuel, 77(14), 1611-1621(1998). crossref(new window)

Montagnaro, F. and Salatino, P., "Analysis of Char-slag Interaction and Near-wall Particle Segregation in Entrained-flow Gasification of Coal," Combust. Flame, 157(5), 874-883(2010). crossref(new window)

Massoudi, M. and Wang, P., "Slag Behavior in Gasifiers.PartII: Constitutive Modeling of Slag," Energies, 6(2), 807-838(2013). crossref(new window)

Lee, J., "Model Predictive Control: Review of the Three Decades of Development," International Journal of Control, Automation, and Systems, 9(3), 415-424(2011). crossref(new window)

Yeu, J., Kim, W., Im, J., Lee, D. and Jee, G., "Obstacle Parameter Modeling for Model Predictive Control of Unmanned Vehicle," Journal of Institute of Control, Robotics and Systems, 18(12), 1132-1138(2012). crossref(new window)

Wen, C. Y. and Chaung, T. Z., "Entrained Coal Gasifier Modeling," Ind. Eng. Chem. Process Des. Dev., 18(4), 684-695(1979). crossref(new window)

Valero A. and Uson S., "Oxy-co-gasification of Coal and Biomass in an Integrated Gasification Combined Cycle (IGCC) Power Plant," Energy, 31(10-11), 1643-1655(2006). crossref(new window)

Govind, R. and Shah, J., "Modeling and Simulation of An Entrained Flow Coal Gasifier," AIChE J., 30(1), 79-92(1984). crossref(new window)

Lee, J. W., Park, S., Seo, H., Kim, M., Kim, S., Chi, J. and Kim, K., "Effects of Burner Type on a Bench-scale Entrained Flow Gasifier and Conceptual Modeling of the System with Aspen Plus," Korean J. Chem. Eng., 29(5), 574-582(2012). crossref(new window)

Robinson, P. J. and Luyben, W., "Simple Dynamic Gasifier Model That Runs in Aspen Dynamics," Ind. Eng. Chem. Res., 47(20), 7784-7792(2008). crossref(new window)

Watanabe, H. and Otaka, M., "Numerical Simulation of Coal Gasification in Entrained Flow Coal Gasifier," Fuel, 85(12-13), 1935-1943(2006). crossref(new window)

Sun, B., Liu, Y., Chen, X., Zhou, Q. and Su, M., "Dynamic Modeling and Simulation of Shell Gasifier in IGCC," Fuel Process. Technol., 92(8), 1418-1425(2011). crossref(new window)

Mongahan, R. and Ghoniem, A, "A dynamic Reduced Order Model for Simulating Entrained Flow Gasifiers PartI: Model Development and Description," Fuel, 91(1), 61-80(2012). crossref(new window)

Park, Y., Moon, J., Lee S., Lee, D. and Jin, G., "The Computeraided Simulation Study on the Gasification Characteristics of the Roto Coal in the Partitioned Fluidized-bed Gasifier," Korean Chem. Eng. Res., 50(3), 511-515(2012). crossref(new window)

Ra, H., Lee, S., Yoon, S., Choi, Y., Kim, J. and Lee, J., "Entrainedflow Coal Water Slurry Gasification," Korean Chem. Eng. Res., 48(2), 129-139(2010).

Gnielinski, V., "New Equation for Heat and Mass Transfer in Turbulent Pipe and Channel Flow," International Chemical Engineering, 16(2), 359-368(1976).

Mills, K. and Rhine, J., "The measurement and Estimation of the Physical Properties of Slag Formed During Coal Gasification: 2. Properties Relevant to Heat Transfer," Fuel, 68(7), 904-910(1989). crossref(new window)

Schobert, H., Streeter, R. and Diehl, E., "Flow Properties of Low-rank Coal Ash Slags: Implications for Slagging Gasification," Fuel, 64(11), 1611-1617(1985). crossref(new window)

Mills, K. and Keene, B., "Physical Properties of BOS Slags," Int. Mater. Rev., 32(1), 1-120(1987). crossref(new window)

Dixon, R., Pike, W. and Donne, S., "The ALSTOM Benchmark Challenge on Gasifier Control," J. Syst. Control Eng., 214(6), 389-394(2000).

Dixon, R., "Benchmark Challenge at Control 2004," Comput. Control Eng. IEE, 10(3), 21-23(2005).

Seyab, A., Cao, Y. and Yang, S., "Predictive Control for the ALSTOM Gasifier Problem," IEE Proc.-Control Theory Appl., 153(3), 293-301(2006). crossref(new window)

Seyab, A. and Cao, Y., "Nonlinear Model Predictive Control for the ALSTOM Gasifier," Journal of Process Control, 16(8), 795-808(2006). crossref(new window)

Bittanti, S., Calloni, L., Canevese, S., Marco and A., Prandoni, V., "A Clean-coal Control Technology Application Study: Modelling and Control Issues for a Coal Gasifier," 7th IFAC International Symposium on Advanced Control of Chemical Processes, Turkey(2009).

Muske, K. and Badgwell, T., "Disturbance Modeling for Offsetfree Linear Model Predictive Control," Journal of Process Control, 12(5), 617-632(2002). crossref(new window)

Bemporad, A., Morari, M. and Ricker, N. L., "Model Predictive Control Toolbox User's Guide," The MathWorks Inc., Natick, MA(2012).