Model-based predictive control of greenhouse climate for reducing energy and water consumption
Computers and Electronics in Agriculture
Constrained predictive control of a greenhouse
Computers and Electronics in Agriculture
A Windows-based design environment for combine automation via CANbus
Computers and Electronics in Agriculture
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Model Predictive Control (MPC) originated in process industry, but in recent years it has been used in many applications beyond this sector. MPC implies solving a quadratic optimisation problem with constraints online. For a practical prototype implementation, it is often necessary to implement the optimisation method yourself. First, the application is presented; then an overview of the most important optimisation methodologies is given. A modified Active Set Method (ASM) is derived. The advantage of this method is its straightforward implementation and good timing behaviour. This method is compared to a commercially implemented Interior Point Method (IPM) on a numerical example and on a real-life implementation.