Current PIλ Control of the Single-Phase Grid Inverter

In a grid-connected power generation system, the grid-connected current of the inverter is sensitive to nonlinear factors such as periodic disturbance of grid voltage, which results in grid-connected current waveform distortion. By establishing a single-phase photovoltaic grid-connected inverter con...

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Autores principales:	Xueqin Yang, Xingyu Liu, Jichao Li, Binbin Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/dbf335d05cc84931a50e7cea23dbe3c4
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id	oai:doaj.org-article:dbf335d05cc84931a50e7cea23dbe3c4
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spelling	oai:doaj.org-article:dbf335d05cc84931a50e7cea23dbe3c42021-11-22T01:10:52ZCurrent PIλ Control of the Single-Phase Grid Inverter1563-514710.1155/2021/7074771https://doaj.org/article/dbf335d05cc84931a50e7cea23dbe3c42021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/7074771https://doaj.org/toc/1563-5147In a grid-connected power generation system, the grid-connected current of the inverter is sensitive to nonlinear factors such as periodic disturbance of grid voltage, which results in grid-connected current waveform distortion. By establishing a single-phase photovoltaic grid-connected inverter control system model, designing an inverse current fractional-order PI (PIλ or FO-PI) controller and the dynamic and steady-state performance, antidisturbance and grid connection inversion characteristics of the system are simulated and compared under the action of the integer-order PI controller and fractional-order PI controller. The quality of the inverter grid-connected current is analyzed by using the fast Fourier transform (FFT). The simulation results show that the fractional-order control system can reduce the total harmonic distortion (THD) of the grid-connected current and dynamic performance and antidisturbance ability of the improving system while satisfying the steady-state performance indexes.Xueqin YangXingyu LiuJichao LiBinbin ZhangHindawi LimitedarticleEngineering (General). Civil engineering (General)TA1-2040MathematicsQA1-939ENMathematical Problems in Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939 Xueqin Yang Xingyu Liu Jichao Li Binbin Zhang Current PIλ Control of the Single-Phase Grid Inverter
description	In a grid-connected power generation system, the grid-connected current of the inverter is sensitive to nonlinear factors such as periodic disturbance of grid voltage, which results in grid-connected current waveform distortion. By establishing a single-phase photovoltaic grid-connected inverter control system model, designing an inverse current fractional-order PI (PIλ or FO-PI) controller and the dynamic and steady-state performance, antidisturbance and grid connection inversion characteristics of the system are simulated and compared under the action of the integer-order PI controller and fractional-order PI controller. The quality of the inverter grid-connected current is analyzed by using the fast Fourier transform (FFT). The simulation results show that the fractional-order control system can reduce the total harmonic distortion (THD) of the grid-connected current and dynamic performance and antidisturbance ability of the improving system while satisfying the steady-state performance indexes.
format	article
author	Xueqin Yang Xingyu Liu Jichao Li Binbin Zhang
author_facet	Xueqin Yang Xingyu Liu Jichao Li Binbin Zhang
author_sort	Xueqin Yang
title	Current PIλ Control of the Single-Phase Grid Inverter
title_short	Current PIλ Control of the Single-Phase Grid Inverter
title_full	Current PIλ Control of the Single-Phase Grid Inverter
title_fullStr	Current PIλ Control of the Single-Phase Grid Inverter
title_full_unstemmed	Current PIλ Control of the Single-Phase Grid Inverter
title_sort	current piλ control of the single-phase grid inverter
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/dbf335d05cc84931a50e7cea23dbe3c4
work_keys_str_mv	AT xueqinyang currentpilcontrolofthesinglephasegridinverter AT xingyuliu currentpilcontrolofthesinglephasegridinverter AT jichaoli currentpilcontrolofthesinglephasegridinverter AT binbinzhang currentpilcontrolofthesinglephasegridinverter
_version_	1718418372213866496

Current PIλ Control of the Single-Phase Grid Inverter

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