An adaptive I-PD controller based on frequency domain system identification
2000; Elsevier BV; Volume: 39; Issue: 1 Linguagem: Inglês
10.1016/s0019-0578(99)00042-7
ISSN1879-2022
AutoresTsuyoki Hashimoto, Yoshihisa Ishida,
Tópico(s)Extremum Seeking Control Systems
ResumoThis paper presents an approach to auto-tune an I-PD controller for plants with long time delays such as pneumatic cylinders. The proposed control scheme estimates the frequency response of a plant using the sliding discrete Fourier transform (DFT) and employs a modified Smith predictor to reduce the effect of time delay. Controller gains are determined so as to minimize the error between the open-loop frequency response of the reference model and that of the actual system.
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