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Improved adaptive input voltage control of a solar array interfacing current mode controlled boost power stage

Research output: Contribution to journalArticleScientificpeer-review

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Improved adaptive input voltage control of a solar array interfacing current mode controlled boost power stage. / Sitbon, Moshe; Schacham, Shmuel; Suntio, Teuvo; Kuperman, Alon.

In: Energy Conversion and Management, Vol. 98, 01.07.2015, p. 369-375.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Sitbon, M, Schacham, S, Suntio, T & Kuperman, A 2015, 'Improved adaptive input voltage control of a solar array interfacing current mode controlled boost power stage', Energy Conversion and Management, vol. 98, pp. 369-375. https://doi.org/10.1016/j.enconman.2015.03.100

APA

Sitbon, M., Schacham, S., Suntio, T., & Kuperman, A. (2015). Improved adaptive input voltage control of a solar array interfacing current mode controlled boost power stage. Energy Conversion and Management, 98, 369-375. https://doi.org/10.1016/j.enconman.2015.03.100

Vancouver

Author

Sitbon, Moshe ; Schacham, Shmuel ; Suntio, Teuvo ; Kuperman, Alon. / Improved adaptive input voltage control of a solar array interfacing current mode controlled boost power stage. In: Energy Conversion and Management. 2015 ; Vol. 98. pp. 369-375.

Bibtex - Download

@article{a4655cd9822940598a8b59890123be50,
title = "Improved adaptive input voltage control of a solar array interfacing current mode controlled boost power stage",
abstract = "Nonlinear characteristics of photovoltaic generators were recently shown to significantly influence the dynamics of interfacing power stages. Moreover, since the dynamic resistance of photovoltaic generators is both operating point and environmental variables dependent, the combined dynamics exhibits these dependencies as well, burdening control challenge. Typically, linear time invariant input voltage loop controllers (e.g. Proportional-Integrative-Derivative) are utilized in photovoltaic applications, designed according to nominal operating conditions. Nevertheless, since actual dynamics is seldom nominal, closed loop performance of such systems varies as well. In this paper, adaptive control method is proposed, allowing to estimate photovoltaic generator resistance online and utilize it to modify the controller parameters such that closed loop performance remains nominal throughout the whole operation range. Unlike previously proposed method, utilizing double-grid-frequency component for estimation purposes and suffering from various drawbacks such as operation point dependence and applicability to single-phase grid connected systems only, the proposed method is based on harmonic current injection and is independent on operating point and system topology.",
keywords = "Adaptive control, Dynamic resistance, Photovoltaic generators",
author = "Moshe Sitbon and Shmuel Schacham and Teuvo Suntio and Alon Kuperman",
year = "2015",
month = "7",
day = "1",
doi = "10.1016/j.enconman.2015.03.100",
language = "English",
volume = "98",
pages = "369--375",
journal = "Energy Conversion and Management",
issn = "0196-8904",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Improved adaptive input voltage control of a solar array interfacing current mode controlled boost power stage

AU - Sitbon, Moshe

AU - Schacham, Shmuel

AU - Suntio, Teuvo

AU - Kuperman, Alon

PY - 2015/7/1

Y1 - 2015/7/1

N2 - Nonlinear characteristics of photovoltaic generators were recently shown to significantly influence the dynamics of interfacing power stages. Moreover, since the dynamic resistance of photovoltaic generators is both operating point and environmental variables dependent, the combined dynamics exhibits these dependencies as well, burdening control challenge. Typically, linear time invariant input voltage loop controllers (e.g. Proportional-Integrative-Derivative) are utilized in photovoltaic applications, designed according to nominal operating conditions. Nevertheless, since actual dynamics is seldom nominal, closed loop performance of such systems varies as well. In this paper, adaptive control method is proposed, allowing to estimate photovoltaic generator resistance online and utilize it to modify the controller parameters such that closed loop performance remains nominal throughout the whole operation range. Unlike previously proposed method, utilizing double-grid-frequency component for estimation purposes and suffering from various drawbacks such as operation point dependence and applicability to single-phase grid connected systems only, the proposed method is based on harmonic current injection and is independent on operating point and system topology.

AB - Nonlinear characteristics of photovoltaic generators were recently shown to significantly influence the dynamics of interfacing power stages. Moreover, since the dynamic resistance of photovoltaic generators is both operating point and environmental variables dependent, the combined dynamics exhibits these dependencies as well, burdening control challenge. Typically, linear time invariant input voltage loop controllers (e.g. Proportional-Integrative-Derivative) are utilized in photovoltaic applications, designed according to nominal operating conditions. Nevertheless, since actual dynamics is seldom nominal, closed loop performance of such systems varies as well. In this paper, adaptive control method is proposed, allowing to estimate photovoltaic generator resistance online and utilize it to modify the controller parameters such that closed loop performance remains nominal throughout the whole operation range. Unlike previously proposed method, utilizing double-grid-frequency component for estimation purposes and suffering from various drawbacks such as operation point dependence and applicability to single-phase grid connected systems only, the proposed method is based on harmonic current injection and is independent on operating point and system topology.

KW - Adaptive control

KW - Dynamic resistance

KW - Photovoltaic generators

U2 - 10.1016/j.enconman.2015.03.100

DO - 10.1016/j.enconman.2015.03.100

M3 - Article

VL - 98

SP - 369

EP - 375

JO - Energy Conversion and Management

JF - Energy Conversion and Management

SN - 0196-8904

ER -