Optimal control of indoor climate in agricultural storage facilities for potatoes and onions

This paper presents the use of receding horizon optimal control (RHOC) for optimal climate control in storage facilities for potatoes and onions. RHOC is used on a supervisory level above the classical feedback climate controller. Some theoretical issues on RHOC are discussed, amongst which a convenient way to handle state constraints. Both simulation and full-scale experimental results are presented. Temperature control is improved and electricity costs are reduced. In view of the positive experimental results, Tolsma Techniek Emmeloord B.V. has started introduction of the control technique as an industrial product.