PID2018 Benchmark Challenge: Model-based Feedforward Compensator with A Conditional Integrator
For control engineers working on PID-based refrigeration systems, this is an incremental improvement over existing PID strategies.
The paper presents a PID control strategy with a feedforward compensator and conditional integrator for a refrigeration system benchmark, achieving improved disturbance compensation and steady-state error removal compared to existing methods.
Since proportional-integral-derivative (PID) controllers absolutely dominate the control engineering, numbers of different control structures and theories have been developed to enhance the efficiency of PID controllers. Thus, it is essential and inspiring to operate different PID control strategies to the PID2018 Benchmark Challenge. In this paper, a novel control strategy is designed for this refrigeration system, where a feedforward compensator and a conditional integrator are utilized to compensate the disturbances and remove the steady-state error in the benchmark problem, respectively. The simulation results given in the benchmark problem show the straightforward effectiveness of the proposed control structure compared with the existing control methods.