Adaptive fuzzy sliding control of single-phase PV grid-connected inverter.

In this paper, an adaptive fuzzy sliding mode controller is proposed to control a two-stage single-phase photovoltaic (PV) grid-connected inverter. Two key technologies are discussed in the presented PV system. An incremental conductance method with adaptive step is adopted to track the maximum powe...

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Main Authors: Juntao Fei, Yunkai Zhu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5552357?pdf=render
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author Juntao Fei
Yunkai Zhu
author_facet Juntao Fei
Yunkai Zhu
author_sort Juntao Fei
collection DOAJ
description In this paper, an adaptive fuzzy sliding mode controller is proposed to control a two-stage single-phase photovoltaic (PV) grid-connected inverter. Two key technologies are discussed in the presented PV system. An incremental conductance method with adaptive step is adopted to track the maximum power point (MPP) by controlling the duty cycle of the controllable power switch of the boost DC-DC converter. An adaptive fuzzy sliding mode controller with an integral sliding surface is developed for the grid-connected inverter where a fuzzy system is used to approach the upper bound of the system nonlinearities. The proposed strategy has strong robustness for the sliding mode control can be designed independently and disturbances can be adaptively compensated. Simulation results of a PV grid-connected system verify the effectiveness of the proposed method, demonstrating the satisfactory robustness and performance.
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spelling doaj.art-fed39f939c31406d976b41e7c24fa18e2022-12-21T19:28:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01128e018291610.1371/journal.pone.0182916Adaptive fuzzy sliding control of single-phase PV grid-connected inverter.Juntao FeiYunkai ZhuIn this paper, an adaptive fuzzy sliding mode controller is proposed to control a two-stage single-phase photovoltaic (PV) grid-connected inverter. Two key technologies are discussed in the presented PV system. An incremental conductance method with adaptive step is adopted to track the maximum power point (MPP) by controlling the duty cycle of the controllable power switch of the boost DC-DC converter. An adaptive fuzzy sliding mode controller with an integral sliding surface is developed for the grid-connected inverter where a fuzzy system is used to approach the upper bound of the system nonlinearities. The proposed strategy has strong robustness for the sliding mode control can be designed independently and disturbances can be adaptively compensated. Simulation results of a PV grid-connected system verify the effectiveness of the proposed method, demonstrating the satisfactory robustness and performance.http://europepmc.org/articles/PMC5552357?pdf=render
spellingShingle Juntao Fei
Yunkai Zhu
Adaptive fuzzy sliding control of single-phase PV grid-connected inverter.
PLoS ONE
title Adaptive fuzzy sliding control of single-phase PV grid-connected inverter.
title_full Adaptive fuzzy sliding control of single-phase PV grid-connected inverter.
title_fullStr Adaptive fuzzy sliding control of single-phase PV grid-connected inverter.
title_full_unstemmed Adaptive fuzzy sliding control of single-phase PV grid-connected inverter.
title_short Adaptive fuzzy sliding control of single-phase PV grid-connected inverter.
title_sort adaptive fuzzy sliding control of single phase pv grid connected inverter
url http://europepmc.org/articles/PMC5552357?pdf=render
work_keys_str_mv AT juntaofei adaptivefuzzyslidingcontrolofsinglephasepvgridconnectedinverter
AT yunkaizhu adaptivefuzzyslidingcontrolofsinglephasepvgridconnectedinverter