Identification and control of unstable FOPTD processes with improved transients
A set of explicit expressions for an accurate identification of unstable first order plus time delay (FOPTD) process using single relay feedback test are deduced. Thereafter, tuning rules for a feedforward and feedback combination of proportional‐integral and proportional controllers are proposed to...
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| Format: | Article |
| Language: | English |
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Wiley
2017-03-01
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| Series: | Electronics Letters |
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| Online Access: | https://doi.org/10.1049/el.2016.3769 |
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| _version_ | 1832096698144391168 |
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| author | S. Pandey S. Majhi |
| author_facet | S. Pandey S. Majhi |
| author_sort | S. Pandey |
| collection | DOAJ |
| description | A set of explicit expressions for an accurate identification of unstable first order plus time delay (FOPTD) process using single relay feedback test are deduced. Thereafter, tuning rules for a feedforward and feedback combination of proportional‐integral and proportional controllers are proposed to enhance the closed loop transient performance. When the process output is distorted by measurement noise, a Fourier series based curve fitting technique is utilised for the reconstruction of true process output. Benchmark examples from literature are illustrated and thereafter comparisons are made to validate the effectiveness of the proposed identification and control scheme. |
| format | Article |
| id | doaj-art-b92859d789a643d28668ca6b6dadc71d |
| institution | Kabale University |
| issn | 0013-5194 1350-911X |
| language | English |
| publishDate | 2017-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj-art-b92859d789a643d28668ca6b6dadc71d2025-02-05T12:30:42ZengWileyElectronics Letters0013-51941350-911X2017-03-0153531231410.1049/el.2016.3769Identification and control of unstable FOPTD processes with improved transientsS. Pandey0S. Majhi1Department of Electronics and Electrical EngineeringIndian Institute of Technology GuwahatiGuwahati781039AssamIndiaDepartment of Electronics and Electrical EngineeringIndian Institute of Technology GuwahatiGuwahati781039AssamIndiaA set of explicit expressions for an accurate identification of unstable first order plus time delay (FOPTD) process using single relay feedback test are deduced. Thereafter, tuning rules for a feedforward and feedback combination of proportional‐integral and proportional controllers are proposed to enhance the closed loop transient performance. When the process output is distorted by measurement noise, a Fourier series based curve fitting technique is utilised for the reconstruction of true process output. Benchmark examples from literature are illustrated and thereafter comparisons are made to validate the effectiveness of the proposed identification and control scheme.https://doi.org/10.1049/el.2016.3769FOPTD process instabilityunstable first‐order plus time delay processsingle‐relay feedback testtuning rulesfeedforward‐feedback combinationproportional‐integral controllers |
| spellingShingle | S. Pandey S. Majhi Identification and control of unstable FOPTD processes with improved transients Electronics Letters FOPTD process instability unstable first‐order plus time delay process single‐relay feedback test tuning rules feedforward‐feedback combination proportional‐integral controllers |
| title | Identification and control of unstable FOPTD processes with improved transients |
| title_full | Identification and control of unstable FOPTD processes with improved transients |
| title_fullStr | Identification and control of unstable FOPTD processes with improved transients |
| title_full_unstemmed | Identification and control of unstable FOPTD processes with improved transients |
| title_short | Identification and control of unstable FOPTD processes with improved transients |
| title_sort | identification and control of unstable foptd processes with improved transients |
| topic | FOPTD process instability unstable first‐order plus time delay process single‐relay feedback test tuning rules feedforward‐feedback combination proportional‐integral controllers |
| url | https://doi.org/10.1049/el.2016.3769 |
| work_keys_str_mv | AT spandey identificationandcontrolofunstablefoptdprocesseswithimprovedtransients AT smajhi identificationandcontrolofunstablefoptdprocesseswithimprovedtransients |