8 papers
An Adaptive Control Architecture for Slope and Terrain Compensation in Autonomous Navigation in Mediterranean Greenhouses
Fernando Cañadas-Aránega, Dirk Wollherr, José L. Guzmán +2
The ability to move stably over terrain with varying slopes and textures is essential for mobile agricultural robots operating in complex and dynamic environments such as greenhous…
Anti-Windup in PID Control: Review, Analysis, and New Tuning Directions
Malena Caparroz, Kristina Soltesz, Tore Hägglund +1
Actuator saturation is a fundamental nonlinearity that significantly degrades the performance of PID-controlled systems by inducing integrator windup, leading to overshoot, slow re…
Sensor-Based Turbidostat Operation Enables Biomass Setpoint Regulation and Productivity Improvement in semi-industrial Microalgae Raceway Pond
José González-Hernández, Laura Bernacchioni, Ainoa Morillas-España +2
This work presents the experimental validation of a turbidostat strategy for biomass control in a semi-industrial outdoor raceway reactor. The proposed approach regulates biomass c…
Model-Free Control approach for pH Regulation in Thin-Layer Photobioreactors
José González-Hernández, Ainoa Morillas-España, José Luis Guzmán +2
Thin-layer photobioreactors (TLRs) exhibit fast hydrodynamic and thermal dynamics, strong nonlinear photosynthetic responses and significant time-variability due to irradiance fluc…
A Practical Guide to PID Controller Implementation
E. Sundström, M. Bauer, J. L. Guzmán +2
How difficult can it be to implement a PID controller? The answer is twofold. Implementing the PID control law is simple and computationally inexpensive. However, this basic form w…
A ROS2 Benchmarking Framework for Hierarchical Control Strategies in Mobile Robots for Mediterranean Greenhouses
Fernando Cañadas-Aránega, Francisco J. Mañas-Álvarez, José L- Guzmán +2
Mobile robots operating in agroindustrial environments, such as Mediterranean greenhouses, are subject to challenging conditions, including uneven terrain, variable friction, paylo…