Continuous Sliding Mode Temperature Tracking of a Solid State Fermentation Reactor for Substrate Production

The Agaricus bisporus “Phase II” composting is a complex Solid State Fermentation (SSF) process of great importance in mushroom production. Because production costs are highly sensitive to this SSF, it is desirable to establish suitable control strategies in order to obtain better mushroom yields in shorter operating times. This work proposes the use of a second order sliding mode controller continuous to track temperature profiles in a simplified 6 ODE's dynamic model describing the behaviour of relevant system states. The closed-loop system is analyzed and simulation results are presented illustrating the performance of this scheme.