Miguel Escrig, OscarRomero Pérez, Julio ArielDormido, SebastiánSánchez Moreno, José2024-05-292024-05-292023-04-11Oscar Miguel-Escrig, Julio-Ariel Romero-Pérez, José Sánchez-Moreno, Sebastián Dormido, On-line retuning of PID controllers with fixed threshold samplers, ISA Transactions (2023), Volume 139, P. 253-262. 0019-05780019-0578https://doi.org/10.1016/j.isatra.2023.04.003https://hdl.handle.net/20.500.14468/22219The appearance of limit cycle oscillations in control systems with fixed threshold based samplers degrades the performance of the control loop, accelerates the wear out of actuators, and introduces an unnecessary communication overhead in distributed control systems. In this paper, the role of the input signals to the control loop is taken into account when analyzing the existence of limit cycles induced by fixed threshold samplers. With this analysis, a methodology to re-tune PID controllers while running to avoid limit cycle oscillations generated by ramp-like excitation signals is presented. Implementation guidelines and several examples to illustrate the usefulness of the method are provided.esAtribución-NoComercial-SinDerivadas 4.0 Internacional12 Matemáticas::1203 Ciencia de los ordenadores ::1203.17 InformáticaartículorobustnessDIDFretuningEBCPID control