Tampere University of Technology

TUTCRIS Research Portal

Direct fixed-step maximum power point tracking algorithms with adaptive perturbation frequency

Research output: Contribution to journalArticleScientificpeer-review

Standard

Direct fixed-step maximum power point tracking algorithms with adaptive perturbation frequency. / Amer, Eyal; Kuperman, Alon; Suntio, Teuvo.

In: Energies, Vol. 12, No. 3, 399, 27.01.2019.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

APA

Vancouver

Author

Bibtex - Download

@article{228184f872a54ce3a770691b5013108a,
title = "Direct fixed-step maximum power point tracking algorithms with adaptive perturbation frequency",
abstract = "Owing to the good trade-off between implementation and performance, fixed-step direct maximum power point tracking techniques (e.g., perturb and observe and incremental conductance algorithms) have gained popularity over the years. In order to optimize their performance, perturbation frequency and perturbation step size are usually determined a priori. While the first mentioned design parameter is typically dictated by the worst-case settling time of the combined energy conversion system, the latter must be high enough to both differentiate the system response from that caused by irradiation variation and match the finite resolution of the analog-to-digital converter in case of digital implementation. Well-established design guidelines, however, aim to optimize steady-state algorithm performance while leaving transients nearly untreated. To improve transient behavior while keeping the steady-state operation unaltered, variable step direct maximum power point tracking algorithms based on adaptive perturbation step size were proposed. This paper proposes a concept of utilizing adaptive perturbation frequency rather than variable step size, based on recently revised guidelines for designing fixed-step direct maximum power point tracking techniques. Preliminary results demonstrate the superiority of the proposed method over adaptive perturbation step size operation during transients, without compromising the steady state performance.",
keywords = "Maximum power point tracking, Perturbation frequency, Photovoltaic generators, Step size",
author = "Eyal Amer and Alon Kuperman and Teuvo Suntio",
year = "2019",
month = "1",
day = "27",
doi = "10.3390/en12030399",
language = "English",
volume = "12",
journal = "Energies",
issn = "1996-1073",
publisher = "MDPI",
number = "3",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Direct fixed-step maximum power point tracking algorithms with adaptive perturbation frequency

AU - Amer, Eyal

AU - Kuperman, Alon

AU - Suntio, Teuvo

PY - 2019/1/27

Y1 - 2019/1/27

N2 - Owing to the good trade-off between implementation and performance, fixed-step direct maximum power point tracking techniques (e.g., perturb and observe and incremental conductance algorithms) have gained popularity over the years. In order to optimize their performance, perturbation frequency and perturbation step size are usually determined a priori. While the first mentioned design parameter is typically dictated by the worst-case settling time of the combined energy conversion system, the latter must be high enough to both differentiate the system response from that caused by irradiation variation and match the finite resolution of the analog-to-digital converter in case of digital implementation. Well-established design guidelines, however, aim to optimize steady-state algorithm performance while leaving transients nearly untreated. To improve transient behavior while keeping the steady-state operation unaltered, variable step direct maximum power point tracking algorithms based on adaptive perturbation step size were proposed. This paper proposes a concept of utilizing adaptive perturbation frequency rather than variable step size, based on recently revised guidelines for designing fixed-step direct maximum power point tracking techniques. Preliminary results demonstrate the superiority of the proposed method over adaptive perturbation step size operation during transients, without compromising the steady state performance.

AB - Owing to the good trade-off between implementation and performance, fixed-step direct maximum power point tracking techniques (e.g., perturb and observe and incremental conductance algorithms) have gained popularity over the years. In order to optimize their performance, perturbation frequency and perturbation step size are usually determined a priori. While the first mentioned design parameter is typically dictated by the worst-case settling time of the combined energy conversion system, the latter must be high enough to both differentiate the system response from that caused by irradiation variation and match the finite resolution of the analog-to-digital converter in case of digital implementation. Well-established design guidelines, however, aim to optimize steady-state algorithm performance while leaving transients nearly untreated. To improve transient behavior while keeping the steady-state operation unaltered, variable step direct maximum power point tracking algorithms based on adaptive perturbation step size were proposed. This paper proposes a concept of utilizing adaptive perturbation frequency rather than variable step size, based on recently revised guidelines for designing fixed-step direct maximum power point tracking techniques. Preliminary results demonstrate the superiority of the proposed method over adaptive perturbation step size operation during transients, without compromising the steady state performance.

KW - Maximum power point tracking

KW - Perturbation frequency

KW - Photovoltaic generators

KW - Step size

U2 - 10.3390/en12030399

DO - 10.3390/en12030399

M3 - Article

VL - 12

JO - Energies

JF - Energies

SN - 1996-1073

IS - 3

M1 - 399

ER -