Simple model-based PID autotuners with rapid relay identification
Abstract
Based on some relationships between model- and relay-based PI/PID tuning, some very simple synthesis procedures are proposed that couple the advantages of model-based methods to the simplicity and clarity of relay experiments. These procedures are fast, as they employ a single relay test, and do not introduce large process upsets. They are also very light from the computational standpoint, thus well suited for low-end industrial regulators. Both simulation examples and a laboratory test are reported.
