Stability analysis of network-controlled generator excitation system with interval time-varying delays
This paper deals with the problem of stability analysis of generator excitation system (GES) with interval time-varying delays. Network-controlled GES involves transmitting measured data from the plant site to controller and control signals from the controller to the plant site. Open communication c...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2021-01-01
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| Series: | Automatika |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/00051144.2020.1860390 |
| _version_ | 1818656586327916544 |
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| author | S. Manikandan Priyanka Kokil |
| author_facet | S. Manikandan Priyanka Kokil |
| author_sort | S. Manikandan |
| collection | DOAJ |
| description | This paper deals with the problem of stability analysis of generator excitation system (GES) with interval time-varying delays. Network-controlled GES involves transmitting measured data from the plant site to controller and control signals from the controller to the plant site. Open communication channels impart time-varying nature to the delays. These time-varying delays can vary between intervals which would affect the system stability. The model of a GES is developed with the proportional integral (PI) controller including delay effects. In this paper, a less conservative delay-dependent stability criterion is derived using Lyapunov-Krasvoskii functional (LKF) for GES with interval time-varying delays. The bounding technique for derivative of LKF is developed by using Wirtinger inequality and free-weighting matrices. The relationship between the delay margins of GES and gains of the PI controller are investigated. This delay margin is used to tune the PI controller. The adequacy of the proposed result is confirmed by using simulation studies. |
| first_indexed | 2024-12-17T03:27:56Z |
| format | Article |
| id | doaj.art-f456dcd314f24533b804b703c85bbb3f |
| institution | Directory Open Access Journal |
| issn | 0005-1144 1848-3380 |
| language | English |
| last_indexed | 2024-12-17T03:27:56Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Automatika |
| spelling | doaj.art-f456dcd314f24533b804b703c85bbb3f2022-12-21T22:05:21ZengTaylor & Francis GroupAutomatika0005-11441848-33802021-01-01621657510.1080/00051144.2020.18603901860390Stability analysis of network-controlled generator excitation system with interval time-varying delaysS. Manikandan0Priyanka Kokil1Indian Institute of Information Technology Design and Manufacturing KancheepuramIndian Institute of Information Technology Design and Manufacturing KancheepuramThis paper deals with the problem of stability analysis of generator excitation system (GES) with interval time-varying delays. Network-controlled GES involves transmitting measured data from the plant site to controller and control signals from the controller to the plant site. Open communication channels impart time-varying nature to the delays. These time-varying delays can vary between intervals which would affect the system stability. The model of a GES is developed with the proportional integral (PI) controller including delay effects. In this paper, a less conservative delay-dependent stability criterion is derived using Lyapunov-Krasvoskii functional (LKF) for GES with interval time-varying delays. The bounding technique for derivative of LKF is developed by using Wirtinger inequality and free-weighting matrices. The relationship between the delay margins of GES and gains of the PI controller are investigated. This delay margin is used to tune the PI controller. The adequacy of the proposed result is confirmed by using simulation studies.http://dx.doi.org/10.1080/00051144.2020.1860390delay-dependent stabilitydelay margingenerator excitation systeminterval time-varying delaylyapunov-krasovskii functional |
| spellingShingle | S. Manikandan Priyanka Kokil Stability analysis of network-controlled generator excitation system with interval time-varying delays Automatika delay-dependent stability delay margin generator excitation system interval time-varying delay lyapunov-krasovskii functional |
| title | Stability analysis of network-controlled generator excitation system with interval time-varying delays |
| title_full | Stability analysis of network-controlled generator excitation system with interval time-varying delays |
| title_fullStr | Stability analysis of network-controlled generator excitation system with interval time-varying delays |
| title_full_unstemmed | Stability analysis of network-controlled generator excitation system with interval time-varying delays |
| title_short | Stability analysis of network-controlled generator excitation system with interval time-varying delays |
| title_sort | stability analysis of network controlled generator excitation system with interval time varying delays |
| topic | delay-dependent stability delay margin generator excitation system interval time-varying delay lyapunov-krasovskii functional |
| url | http://dx.doi.org/10.1080/00051144.2020.1860390 |
| work_keys_str_mv | AT smanikandan stabilityanalysisofnetworkcontrolledgeneratorexcitationsystemwithintervaltimevaryingdelays AT priyankakokil stabilityanalysisofnetworkcontrolledgeneratorexcitationsystemwithintervaltimevaryingdelays |