A Novel Command-Filtered Adaptive Backstepping Control Strategy with Prescribed Performance for Photovoltaic Grid-Connected Systems
With the aim of solving the power fluctuation and bus voltage instability problems caused by external environment variations in the photovoltaic grid-connected system, a prescribed performance-based adaptive backstepping controller is proposed for the system to regulate the bus voltage and the inver...
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doaj-2845ce77ded14900b8ecc7ccfd8ca3532020-11-25T03:21:56ZengMDPI AGSustainability2071-10502020-09-01127429742910.3390/su12187429A Novel Command-Filtered Adaptive Backstepping Control Strategy with Prescribed Performance for Photovoltaic Grid-Connected SystemsWeiming Zhang0Tinglong Pan1Dinghui Wu2Dezhi Xu3School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaWith the aim of solving the power fluctuation and bus voltage instability problems caused by external environment variations in the photovoltaic grid-connected system, a prescribed performance-based adaptive backstepping controller is proposed for the system to regulate the bus voltage and the inverter current. First, the mathematical model of the grid-connected inverter is established, in which the uncertain system parameters are estimated via a designed projection-based adaptive law. Then, the command-filtered backstepping sliding mode control method is applied to the system for power regulation. In order to achieve favorable tracking performance, the prescribed performance technique is introduced in the voltage regulation strategy by constraining the compensated voltage tracking error within a certain range from a novel point of view. Finally, the simulation is carried out considering the variations of environmental situations, and the obtained results demonstrate the sound performance of the prescribed performance-based control strategy with respect to the photovoltaic grid-connected system.https://www.mdpi.com/2071-1050/12/18/7429photovoltaic grid-connected systempower fluctuationDC bus voltage stabilizationprescribed performancecommand-filtered adaptive backstepping control |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Weiming Zhang Tinglong Pan Dinghui Wu Dezhi Xu |
spellingShingle |
Weiming Zhang Tinglong Pan Dinghui Wu Dezhi Xu A Novel Command-Filtered Adaptive Backstepping Control Strategy with Prescribed Performance for Photovoltaic Grid-Connected Systems Sustainability photovoltaic grid-connected system power fluctuation DC bus voltage stabilization prescribed performance command-filtered adaptive backstepping control |
author_facet |
Weiming Zhang Tinglong Pan Dinghui Wu Dezhi Xu |
author_sort |
Weiming Zhang |
title |
A Novel Command-Filtered Adaptive Backstepping Control Strategy with Prescribed Performance for Photovoltaic Grid-Connected Systems |
title_short |
A Novel Command-Filtered Adaptive Backstepping Control Strategy with Prescribed Performance for Photovoltaic Grid-Connected Systems |
title_full |
A Novel Command-Filtered Adaptive Backstepping Control Strategy with Prescribed Performance for Photovoltaic Grid-Connected Systems |
title_fullStr |
A Novel Command-Filtered Adaptive Backstepping Control Strategy with Prescribed Performance for Photovoltaic Grid-Connected Systems |
title_full_unstemmed |
A Novel Command-Filtered Adaptive Backstepping Control Strategy with Prescribed Performance for Photovoltaic Grid-Connected Systems |
title_sort |
novel command-filtered adaptive backstepping control strategy with prescribed performance for photovoltaic grid-connected systems |
publisher |
MDPI AG |
series |
Sustainability |
issn |
2071-1050 |
publishDate |
2020-09-01 |
description |
With the aim of solving the power fluctuation and bus voltage instability problems caused by external environment variations in the photovoltaic grid-connected system, a prescribed performance-based adaptive backstepping controller is proposed for the system to regulate the bus voltage and the inverter current. First, the mathematical model of the grid-connected inverter is established, in which the uncertain system parameters are estimated via a designed projection-based adaptive law. Then, the command-filtered backstepping sliding mode control method is applied to the system for power regulation. In order to achieve favorable tracking performance, the prescribed performance technique is introduced in the voltage regulation strategy by constraining the compensated voltage tracking error within a certain range from a novel point of view. Finally, the simulation is carried out considering the variations of environmental situations, and the obtained results demonstrate the sound performance of the prescribed performance-based control strategy with respect to the photovoltaic grid-connected system. |
topic |
photovoltaic grid-connected system power fluctuation DC bus voltage stabilization prescribed performance command-filtered adaptive backstepping control |
url |
https://www.mdpi.com/2071-1050/12/18/7429 |
work_keys_str_mv |
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