This paper presents a model predictive control (MPC) strategy for BioGrate boiler, compensating the main disturbances caused by variations in fuel quality such as the moisture content of fuel, and variations in fuel ﬂow. The MPC utilizes models, the fuel moisture soft-sensor to estimate water evaporation, and the fuel ﬂow calculations to estimate the thermal decomposition of dry fuel, to handle these variations, the inherent large time constants, and long time delays of the boiler. The MPC strategy is compared with the method currently used in the BioPower 5 CHP plant. Finally, the results are presented, analyzed and discussed.
|Journal||International Journal of Electrical Power and Energy Systems|
|Issue number||February 2015|
|Publication status||Published - 2015|
|MoE publication type||A1 Journal article-refereed|
- fuel quality
- advanced control