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ITS » Scientific Articles » Luar ITS Posted by firstname.lastname@example.org at 01/09/2016 14:12:57 • 418 Views
OPTIMIZATION TUNING PID CONTROLLER FOR CLOSED-LOOP SYSTEMS USING IMPULSE RESPONSE
Author : HENDRO NURHADI ( 197511202002121002 ) ABDUL AZIZ ACHMAD
Most of the proportional-integral-derivative PID controller tuning methods reported in literature are based on the approximate plant models FOPDT or SOPDT models derived from the step response of the plant. In literature journal a new method of designing PID controllers using impulse response instead of step response of the plant is presented. And in this research treating the impulse response of the plant as a statistical distribution the mean and the variance of the distribution are calculated and used in the calculation of PID controller parameters. Thus the proposed method requires no approximation of the plant by any model. A direct synthesis approach to PID controller design is proposed that makes use of Maclaurin series of the desired closed-loop transfer function truncated up to the first three terms. PID controller parameters are synthesized to match the closed-loop response of the plant to the desired closed-loop response. Formulae for the calculation of PID controller tuning parameters are derived for the desired closed-loop response models of the types FOPDT and SOPDT. Only stable SISO systems are considered. The PID controllers tuned result in closed-loop responses very close to the desired response.