Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter

Summary. The linear active disturbance rejection control (LADRC) is mainly applied for tracking a step signal, and it is inadequate to realize satisfactory performance in the control of a single-phase inverter whose reference signal is sinusoidal. In this paper, an improved voltage control strategy...

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Main Authors: Liaoyuan Lin, Haoda Li, Kai Zhu, Lingling Shi, Ping Li
Format: Article
Language:English
Published: Hindawi-Wiley 2022-01-01
Series:International Transactions on Electrical Energy Systems
Online Access:http://dx.doi.org/10.1155/2022/8131611
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author Liaoyuan Lin
Haoda Li
Kai Zhu
Lingling Shi
Ping Li
author_facet Liaoyuan Lin
Haoda Li
Kai Zhu
Lingling Shi
Ping Li
author_sort Liaoyuan Lin
collection DOAJ
description Summary. The linear active disturbance rejection control (LADRC) is mainly applied for tracking a step signal, and it is inadequate to realize satisfactory performance in the control of a single-phase inverter whose reference signal is sinusoidal. In this paper, an improved voltage control strategy based on compound synchronous reference frame proportional-integral (SRFPI) control and LADRC is proposed. The SRFPI and LADRC remain relatively independent without complicating the control parameter design. Detailed theoretical analyses on the compound strategy and its performance are presented, indicating that it inherits the advantages of the two controllers. Moreover, contrast experiments are carried out to verify the feasibility and superiority of the proposed control strategy. The results show that the system achieves a small steady-state error, voltage tracking error, fast transient response, and low total harmonic distortion (THD) when feeding a highly nonlinear load.
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spelling doaj.art-99975706cf83408a9626be1ff9137c962022-12-22T04:06:36ZengHindawi-WileyInternational Transactions on Electrical Energy Systems2050-70382022-01-01202210.1155/2022/8131611Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase InverterLiaoyuan Lin0Haoda Li1Kai Zhu2Lingling Shi3Ping Li4College of Information Science and EngineeringCollege of Information Science and EngineeringCollege of Information Science and EngineeringCollege of Information Science and EngineeringCollege of Information Science and EngineeringSummary. The linear active disturbance rejection control (LADRC) is mainly applied for tracking a step signal, and it is inadequate to realize satisfactory performance in the control of a single-phase inverter whose reference signal is sinusoidal. In this paper, an improved voltage control strategy based on compound synchronous reference frame proportional-integral (SRFPI) control and LADRC is proposed. The SRFPI and LADRC remain relatively independent without complicating the control parameter design. Detailed theoretical analyses on the compound strategy and its performance are presented, indicating that it inherits the advantages of the two controllers. Moreover, contrast experiments are carried out to verify the feasibility and superiority of the proposed control strategy. The results show that the system achieves a small steady-state error, voltage tracking error, fast transient response, and low total harmonic distortion (THD) when feeding a highly nonlinear load.http://dx.doi.org/10.1155/2022/8131611
spellingShingle Liaoyuan Lin
Haoda Li
Kai Zhu
Lingling Shi
Ping Li
Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter
International Transactions on Electrical Energy Systems
title Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter
title_full Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter
title_fullStr Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter
title_full_unstemmed Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter
title_short Analysis and Verification of Compound SRFPI-LADRC Strategy for an Off-Grid Single-Phase Inverter
title_sort analysis and verification of compound srfpi ladrc strategy for an off grid single phase inverter
url http://dx.doi.org/10.1155/2022/8131611
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AT kaizhu analysisandverificationofcompoundsrfpiladrcstrategyforanoffgridsinglephaseinverter
AT linglingshi analysisandverificationofcompoundsrfpiladrcstrategyforanoffgridsinglephaseinverter
AT pingli analysisandverificationofcompoundsrfpiladrcstrategyforanoffgridsinglephaseinverter