A New Adaptive Switching Control Method for the Complex Operating Condition of the Grid-Connected Power System
Due to the increase in wind power accessing power system in recent years, the low-frequency oscillation of power system is more complicated. Therefore, a new adaptive switching control method combined with a nonlinear system is proposed for the complex operating conditions of the grid-connected powe...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Journal of Electrical and Computer Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/7071316 |
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| _version_ | 1832548621380222976 |
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| author | Miao Yu Yihui Zhang Shouzhi Zhang Jingxuan Hu Shuwei Yang Weijie Du Jinglin Li |
| author_facet | Miao Yu Yihui Zhang Shouzhi Zhang Jingxuan Hu Shuwei Yang Weijie Du Jinglin Li |
| author_sort | Miao Yu |
| collection | DOAJ |
| description | Due to the increase in wind power accessing power system in recent years, the low-frequency oscillation of power system is more complicated. Therefore, a new adaptive switching control method combined with a nonlinear system is proposed for the complex operating conditions of the grid-connected power system. Firstly, this method decomposes the low-frequency oscillation control problem of the power system into two parts, which are the linear system control and the nonlinear system control. Then, in the linear system control part, the iterative identification method is used to control this part. In the nonlinear system control part, the nonlinear term is decomposed into a combination of the previous beating measurable and the nonlinear estimation increment. Secondly, the nonlinear system is divided into three different operating conditions by the nonlinear estimation increment. Thus, four different adaptive controllers are obtained. Then, the designed controller is switched according to the controlled object with four controllers by the switching function, which not only ensures the stability of the closed-loop system, but also improves the control performance of the controller under different operating conditions. Finally, the feasibility and effectiveness of this method are verified, and the controller can fit the control efficiency of the real power system well. |
| format | Article |
| id | doaj-art-93b9e33d9f2449a1b67f5bc1e1c21198 |
| institution | Kabale University |
| issn | 2090-0155 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Electrical and Computer Engineering |
| spelling | doaj-art-93b9e33d9f2449a1b67f5bc1e1c211982025-02-03T06:13:33ZengWileyJournal of Electrical and Computer Engineering2090-01552022-01-01202210.1155/2022/7071316A New Adaptive Switching Control Method for the Complex Operating Condition of the Grid-Connected Power SystemMiao Yu0Yihui Zhang1Shouzhi Zhang2Jingxuan Hu3Shuwei Yang4Weijie Du5Jinglin Li6School of Mechanical-Electronic and Automobile EngineeringSchool of Mechanical-Electronic and Automobile EngineeringSchool of Mechanical-Electronic and Automobile EngineeringSchool of Mechanical-Electronic and Automobile EngineeringSchool of Mechanical-Electronic and Automobile EngineeringSchool of Mechanical-Electronic and Automobile EngineeringSchool of Mechanical-Electronic and Automobile EngineeringDue to the increase in wind power accessing power system in recent years, the low-frequency oscillation of power system is more complicated. Therefore, a new adaptive switching control method combined with a nonlinear system is proposed for the complex operating conditions of the grid-connected power system. Firstly, this method decomposes the low-frequency oscillation control problem of the power system into two parts, which are the linear system control and the nonlinear system control. Then, in the linear system control part, the iterative identification method is used to control this part. In the nonlinear system control part, the nonlinear term is decomposed into a combination of the previous beating measurable and the nonlinear estimation increment. Secondly, the nonlinear system is divided into three different operating conditions by the nonlinear estimation increment. Thus, four different adaptive controllers are obtained. Then, the designed controller is switched according to the controlled object with four controllers by the switching function, which not only ensures the stability of the closed-loop system, but also improves the control performance of the controller under different operating conditions. Finally, the feasibility and effectiveness of this method are verified, and the controller can fit the control efficiency of the real power system well.http://dx.doi.org/10.1155/2022/7071316 |
| spellingShingle | Miao Yu Yihui Zhang Shouzhi Zhang Jingxuan Hu Shuwei Yang Weijie Du Jinglin Li A New Adaptive Switching Control Method for the Complex Operating Condition of the Grid-Connected Power System Journal of Electrical and Computer Engineering |
| title | A New Adaptive Switching Control Method for the Complex Operating Condition of the Grid-Connected Power System |
| title_full | A New Adaptive Switching Control Method for the Complex Operating Condition of the Grid-Connected Power System |
| title_fullStr | A New Adaptive Switching Control Method for the Complex Operating Condition of the Grid-Connected Power System |
| title_full_unstemmed | A New Adaptive Switching Control Method for the Complex Operating Condition of the Grid-Connected Power System |
| title_short | A New Adaptive Switching Control Method for the Complex Operating Condition of the Grid-Connected Power System |
| title_sort | new adaptive switching control method for the complex operating condition of the grid connected power system |
| url | http://dx.doi.org/10.1155/2022/7071316 |
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