Distributed Robust Finite-Time Secondary Control for Stand-Alone Microgrids With Time-Varying Communication Delays
In this paper we consider the problem of restoring the voltage for stand-alone inverter-based Microgrids despite the effects of the time-delays arising with the information exchange among the electrical busses. To guarantee that all Distributed Generators (DGs) reach in a finite-time and maintain th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9406008/ |
| _version_ | 1818892533044871168 |
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| author | Amedeo Andreotti Bianca Caiazzo Alberto Petrillo Stefania Santini |
| author_facet | Amedeo Andreotti Bianca Caiazzo Alberto Petrillo Stefania Santini |
| author_sort | Amedeo Andreotti |
| collection | DOAJ |
| description | In this paper we consider the problem of restoring the voltage for stand-alone inverter-based Microgrids despite the effects of the time-delays arising with the information exchange among the electrical busses. To guarantee that all Distributed Generators (DGs) reach in a finite-time and maintain the voltage set-point, as imposed by a virtual DG acting as a leader, we suggest a novel robust networked-based control protocol that is also able to counteract both the time-varying communication delays and natural fluctuations caused by the primary controllers. The finite-time stability of the whole Microgrid is analytically proven by exploiting Lyapunov-Krasovskii theory and finite-time stability mathematical tools. In so doing, delay-dependent stability conditions are derived as a set of Linear Matrix Inequalities (LMIs), whose solution allows the proper tuning of the control gains such that the control objective is achieved with required transient and steady-state performances. A thorough numerical analysis is carried out on the IEEE 14-bus test system. Simulation results corroborate the analytical derivation and reveal both the effectiveness and the robustness of the suggested controller in ensuring the voltage restoration in finite-time in spite of the effects of time-varying communication delays. |
| first_indexed | 2024-12-19T17:58:13Z |
| format | Article |
| id | doaj.art-296d2f5a7ee04a11abb532517937b738 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T17:58:13Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-296d2f5a7ee04a11abb532517937b7382022-12-21T20:11:45ZengIEEEIEEE Access2169-35362021-01-019595485956310.1109/ACCESS.2021.30737799406008Distributed Robust Finite-Time Secondary Control for Stand-Alone Microgrids With Time-Varying Communication DelaysAmedeo Andreotti0https://orcid.org/0000-0002-6514-6807Bianca Caiazzo1Alberto Petrillo2https://orcid.org/0000-0003-4630-6673Stefania Santini3https://orcid.org/0000-0002-0754-6271Department of Electrical Engineering and Information Technology, University of Naples Federico II, Naples, ItalyDepartment of Electrical Engineering and Information Technology, University of Naples Federico II, Naples, ItalyDepartment of Electrical Engineering and Information Technology, University of Naples Federico II, Naples, ItalyDepartment of Electrical Engineering and Information Technology, University of Naples Federico II, Naples, ItalyIn this paper we consider the problem of restoring the voltage for stand-alone inverter-based Microgrids despite the effects of the time-delays arising with the information exchange among the electrical busses. To guarantee that all Distributed Generators (DGs) reach in a finite-time and maintain the voltage set-point, as imposed by a virtual DG acting as a leader, we suggest a novel robust networked-based control protocol that is also able to counteract both the time-varying communication delays and natural fluctuations caused by the primary controllers. The finite-time stability of the whole Microgrid is analytically proven by exploiting Lyapunov-Krasovskii theory and finite-time stability mathematical tools. In so doing, delay-dependent stability conditions are derived as a set of Linear Matrix Inequalities (LMIs), whose solution allows the proper tuning of the control gains such that the control objective is achieved with required transient and steady-state performances. A thorough numerical analysis is carried out on the IEEE 14-bus test system. Simulation results corroborate the analytical derivation and reveal both the effectiveness and the robustness of the suggested controller in ensuring the voltage restoration in finite-time in spite of the effects of time-varying communication delays.https://ieeexplore.ieee.org/document/9406008/Secondary voltage controlislanded microgridmulti-agent systemstime-varying communication delayrobust control strategyfinite-time stability |
| spellingShingle | Amedeo Andreotti Bianca Caiazzo Alberto Petrillo Stefania Santini Distributed Robust Finite-Time Secondary Control for Stand-Alone Microgrids With Time-Varying Communication Delays IEEE Access Secondary voltage control islanded microgrid multi-agent systems time-varying communication delay robust control strategy finite-time stability |
| title | Distributed Robust Finite-Time Secondary Control for Stand-Alone Microgrids With Time-Varying Communication Delays |
| title_full | Distributed Robust Finite-Time Secondary Control for Stand-Alone Microgrids With Time-Varying Communication Delays |
| title_fullStr | Distributed Robust Finite-Time Secondary Control for Stand-Alone Microgrids With Time-Varying Communication Delays |
| title_full_unstemmed | Distributed Robust Finite-Time Secondary Control for Stand-Alone Microgrids With Time-Varying Communication Delays |
| title_short | Distributed Robust Finite-Time Secondary Control for Stand-Alone Microgrids With Time-Varying Communication Delays |
| title_sort | distributed robust finite time secondary control for stand alone microgrids with time varying communication delays |
| topic | Secondary voltage control islanded microgrid multi-agent systems time-varying communication delay robust control strategy finite-time stability |
| url | https://ieeexplore.ieee.org/document/9406008/ |
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