Abstract
The Integrated Gasification Combined Cycle (IGCC) possesses a number of benefits over traditional power generation plants, ranging from increased efficiency to flex-fuel and carbon capture opportunities. A lesser known benefit of the IGCC configuration is the ability to load track electricity demands. The idea being that process modifications will allow for a time-shift of power production away from periods of low energy value to periods of high value. This work illustrates the use of Economic Model Predictive Control (EMPC) as a vehicle to exploit dispatch capabilities by direct maximization of revenue. However, implementation of EMPC can result in unexpected and at times pathological closed-loop behavior, including inventory creep and bang-bang actuation. To address these issues, an infinite-horizon version of EMPC is developed and shown avoid many of the performance issues observed in the finite-horizon version.
Published Version
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