Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid
Abstract This paper develops an enhanced proportional‐integral distributed control scheme (EPI‐DCS) to regulate the frequency and voltage of a droop‐controlled microgrid and share the power mismatch, simultaneously. The proposed EPI‐DCS is designed by using the control Lyapunov function method and a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-03-01
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| Series: | IET Renewable Power Generation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/rpg2.12074 |
| _version_ | 1818366438281314304 |
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| author | Yuanshi Zhang Amin Mohammadpour Shotorbani Liwei Wang Behnam Mohammadi‐Ivatloo |
| author_facet | Yuanshi Zhang Amin Mohammadpour Shotorbani Liwei Wang Behnam Mohammadi‐Ivatloo |
| author_sort | Yuanshi Zhang |
| collection | DOAJ |
| description | Abstract This paper develops an enhanced proportional‐integral distributed control scheme (EPI‐DCS) to regulate the frequency and voltage of a droop‐controlled microgrid and share the power mismatch, simultaneously. The proposed EPI‐DCS is designed by using the control Lyapunov function method and adding a new consensus‐based term to the integrand dynamic of the conventional PI control. In the proposed distributed EPI‐DCS, the distributed generation units intermittently exchange information with the neighbouring distributed generation units, through a communication network. Considering the communication network time delays, the stability of the proposed EPI‐DCS is examined using the Lyapunov–Krasovskii linear matrix inequality conditions, and the maximum stable time delay is calculated. In order to stabilise the system for large destabilising time delays, an adaptive gain scheme is proposed. Effectiveness of the proposed adaptive EPI‐DCS is validated by numerical simulations with detailed models of the components and the converters, including load change, distributed generation outage, and adaptive gain‐scheduling against destabilising communication network time delays. |
| first_indexed | 2024-12-13T22:36:09Z |
| format | Article |
| id | doaj.art-1daf19a4a5e44590b118d306e3980411 |
| institution | Directory Open Access Journal |
| issn | 1752-1416 1752-1424 |
| language | English |
| last_indexed | 2024-12-13T22:36:09Z |
| publishDate | 2021-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Renewable Power Generation |
| spelling | doaj.art-1daf19a4a5e44590b118d306e39804112022-12-21T23:28:58ZengWileyIET Renewable Power Generation1752-14161752-14242021-03-0115485486410.1049/rpg2.12074Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgridYuanshi Zhang0Amin Mohammadpour Shotorbani1Liwei Wang2Behnam Mohammadi‐Ivatloo3School of Engineering The University of British Columbia Kelowna British Columbia CanadaSchool of Engineering The University of British Columbia Kelowna British Columbia CanadaSchool of Engineering The University of British Columbia Kelowna British Columbia CanadaFaculty of Electrical and Computer Engineering University of Tabriz Tabriz IranAbstract This paper develops an enhanced proportional‐integral distributed control scheme (EPI‐DCS) to regulate the frequency and voltage of a droop‐controlled microgrid and share the power mismatch, simultaneously. The proposed EPI‐DCS is designed by using the control Lyapunov function method and adding a new consensus‐based term to the integrand dynamic of the conventional PI control. In the proposed distributed EPI‐DCS, the distributed generation units intermittently exchange information with the neighbouring distributed generation units, through a communication network. Considering the communication network time delays, the stability of the proposed EPI‐DCS is examined using the Lyapunov–Krasovskii linear matrix inequality conditions, and the maximum stable time delay is calculated. In order to stabilise the system for large destabilising time delays, an adaptive gain scheme is proposed. Effectiveness of the proposed adaptive EPI‐DCS is validated by numerical simulations with detailed models of the components and the converters, including load change, distributed generation outage, and adaptive gain‐scheduling against destabilising communication network time delays.https://doi.org/10.1049/rpg2.12074Linear algebra (numerical analysis)Power system controlControl system analysis and synthesis methodsStability in control theoryMultivariable control systemsSelf‐adjusting control systems |
| spellingShingle | Yuanshi Zhang Amin Mohammadpour Shotorbani Liwei Wang Behnam Mohammadi‐Ivatloo Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid IET Renewable Power Generation Linear algebra (numerical analysis) Power system control Control system analysis and synthesis methods Stability in control theory Multivariable control systems Self‐adjusting control systems |
| title | Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid |
| title_full | Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid |
| title_fullStr | Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid |
| title_full_unstemmed | Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid |
| title_short | Enhanced PI control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid |
| title_sort | enhanced pi control and adaptive gain tuning schemes for distributed secondary control of an islanded microgrid |
| topic | Linear algebra (numerical analysis) Power system control Control system analysis and synthesis methods Stability in control theory Multivariable control systems Self‐adjusting control systems |
| url | https://doi.org/10.1049/rpg2.12074 |
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