Advanced Control Strategies for IGCC Plants with Membrane Reactors for CO₂Capture

Design and Implementation of Model Predictive Control Strategies for Improved Power Plant Cycling

“…In the direct transcription-based MPC approach (Amrit et al, 2013;Lima et al, 2013;Lima et al, 2017;He et al, 2018), the state and differential profiles of the system are approximated by a family of polynomials on finite elements. In such approximation, Radau collocation points are used for allowing constraints to be set at the end of each element and stabilizing the system more efficiently in case of high index differential algebraic equation (DAE) systems.…”

“…The output of the gasifier unit consists of the syngas from the gasification zone. The following reactions take place in the gasifier (Jillson et al, 2009;Lima et al, 2017): The obtained retentate and permeate streams proceed to the CCS and power generation units, respectively. More details on the WGS-MR portion model can be found in reference (Lima et al, 2012).…”

“…The HPST and LPST are modeled similarly to the GT turbine portion and are assumed to have constant efficiencies and outlet temperatures. Additional details and equations for these unit models can be found in references (Jillson et al, 2009;Lima et al, 2012;Lima et al,2017). The resulting plant model is represented by a system of differential algebraic equations that are integrated using the appropriate subroutines in MATLAB.…”