A method for closed loop automatic tuning of PID controllers
A simple method for the automatic tuning of PID controllers in closed loop is proposed. A limit cycle is generated through a nonlinear feedback path from the process output to the controller reference signal. The frequency of this oscillation is above the crossover frequency and below the critical f...
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| Format: | Article |
| Language: | English |
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Norwegian Society of Automatic Control
1992-07-01
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| Series: | Modeling, Identification and Control |
| Subjects: | |
| Online Access: | http://www.mic-journal.no/PDF/1992/MIC-1992-3-3.pdf |
| _version_ | 1818261113664438272 |
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| author | Tor S. Schei |
| author_facet | Tor S. Schei |
| author_sort | Tor S. Schei |
| collection | DOAJ |
| description | A simple method for the automatic tuning of PID controllers in closed loop is proposed. A limit cycle is generated through a nonlinear feedback path from the process output to the controller reference signal. The frequency of this oscillation is above the crossover frequency and below the critical frequency of the loop transfer function. The amplitude and frequency of the oscillation are estimated and the control parameters are adjusted iteratively such that the closed loop transfer function from the controller reference to the process output attains a specified amplitude at the oscillation frequency. |
| first_indexed | 2024-12-12T18:42:04Z |
| format | Article |
| id | doaj.art-ac2edafcdf0f411c918b847cc087d1c1 |
| institution | Directory Open Access Journal |
| issn | 0332-7353 1890-1328 |
| language | English |
| last_indexed | 2024-12-12T18:42:04Z |
| publishDate | 1992-07-01 |
| publisher | Norwegian Society of Automatic Control |
| record_format | Article |
| series | Modeling, Identification and Control |
| spelling | doaj.art-ac2edafcdf0f411c918b847cc087d1c12022-12-22T00:15:37ZengNorwegian Society of Automatic ControlModeling, Identification and Control0332-73531890-13281992-07-0113315516210.4173/mic.1992.3.3A method for closed loop automatic tuning of PID controllersTor S. ScheiA simple method for the automatic tuning of PID controllers in closed loop is proposed. A limit cycle is generated through a nonlinear feedback path from the process output to the controller reference signal. The frequency of this oscillation is above the crossover frequency and below the critical frequency of the loop transfer function. The amplitude and frequency of the oscillation are estimated and the control parameters are adjusted iteratively such that the closed loop transfer function from the controller reference to the process output attains a specified amplitude at the oscillation frequency.http://www.mic-journal.no/PDF/1992/MIC-1992-3-3.pdfAdaptive controlclosed-loop systemsdescribing functionsidentificationindustrial controllimit cyclesNyquist criterionPID control |
| spellingShingle | Tor S. Schei A method for closed loop automatic tuning of PID controllers Modeling, Identification and Control Adaptive control closed-loop systems describing functions identification industrial control limit cycles Nyquist criterion PID control |
| title | A method for closed loop automatic tuning of PID controllers |
| title_full | A method for closed loop automatic tuning of PID controllers |
| title_fullStr | A method for closed loop automatic tuning of PID controllers |
| title_full_unstemmed | A method for closed loop automatic tuning of PID controllers |
| title_short | A method for closed loop automatic tuning of PID controllers |
| title_sort | method for closed loop automatic tuning of pid controllers |
| topic | Adaptive control closed-loop systems describing functions identification industrial control limit cycles Nyquist criterion PID control |
| url | http://www.mic-journal.no/PDF/1992/MIC-1992-3-3.pdf |
| work_keys_str_mv | AT torsschei amethodforclosedloopautomatictuningofpidcontrollers AT torsschei methodforclosedloopautomatictuningofpidcontrollers |