A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings

Ziqiang Bi; Jieming Ma; Ka Lok Man; Yong Yue; Jeremy S. Smith

doi:10.1109/ISOCC50952.2020.9333031

A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings

Ziqiang Bi
, Jieming Ma
, Ka Lok Man
, Yong Yue
, Jeremy S. Smith

Xi'an Jiaotong-Liverpool University
University of Liverpool

Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review

Abstract

Multiple peaks in power-voltage (P-V) characteristics of photovoltaic (PV) strings under partial shading conditions (PSC) bring challenges to maximum power point tracking (MPPT) techniques for reaching the global maximum power point (GMPP). Early studies have revealed that the locus of the GMPP can be predicted from the shading information, which is the mathematical indicator to express the PSC. In this paper, a novel global maximum power point tracking (GMPPT) method based on the detection of the shading vector is proposed in this paper. The locus of the GMPP is estimated from the peak matrix transformed by shading vector. Simulation results demonstrate that the proposed GMPPT method is capable of tracking the GMPP efficiently under various shading patterns. By comparing with the original \mathbf{0.8\mathbf{V}{\mathbf{OC}}}-model-based MPPT method, the proposed method reduces the tracking step by 75% while maintaining good prediction accuracy.

Original language	English
Title of host publication	Proceedings - International SoC Design Conference, ISOCC 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	165-166
Number of pages	2
ISBN (Electronic)	9781728183312
DOIs	https://doi.org/10.1109/ISOCC50952.2020.9333031
Publication status	Published - 21 Oct 2020
Event	17th International System-on-Chip Design Conference, ISOCC 2020 - Yeosu, Korea, Republic of Duration: 21 Oct 2020 → 24 Oct 2020

Publication series

Name	Proceedings - International SoC Design Conference, ISOCC 2020

Conference

Conference	17th International System-on-Chip Design Conference, ISOCC 2020
Country/Territory	Korea, Republic of
City	Yeosu
Period	21/10/20 → 24/10/20

Keywords

Mathbf{0.8\mathbf{V}{\mathbf{OC}}} model
global maximum power point tracking
partial shading conditions
shading information

Access to Document

10.1109/ISOCC50952.2020.9333031

Cite this

Bi, Z., Ma, J., Man, K. L., Yue, Y., & Smith, J. S. (2020). A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings. In Proceedings - International SoC Design Conference, ISOCC 2020 (pp. 165-166). Article 9333031 (Proceedings - International SoC Design Conference, ISOCC 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISOCC50952.2020.9333031

@inproceedings{966ff054150749fa9e07628457c5f739,

title = "A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings",

abstract = "Multiple peaks in power-voltage (P-V) characteristics of photovoltaic (PV) strings under partial shading conditions (PSC) bring challenges to maximum power point tracking (MPPT) techniques for reaching the global maximum power point (GMPP). Early studies have revealed that the locus of the GMPP can be predicted from the shading information, which is the mathematical indicator to express the PSC. In this paper, a novel global maximum power point tracking (GMPPT) method based on the detection of the shading vector is proposed in this paper. The locus of the GMPP is estimated from the peak matrix transformed by shading vector. Simulation results demonstrate that the proposed GMPPT method is capable of tracking the GMPP efficiently under various shading patterns. By comparing with the original \textbackslash{}mathbf\{0.8\textbackslash{}mathbf\{V\}\{\textbackslash{}mathbf\{OC\}\}\}-model-based MPPT method, the proposed method reduces the tracking step by 75\% while maintaining good prediction accuracy.",

keywords = "Mathbf\{0.8\textbackslash{}mathbf\{V\}\{\textbackslash{}mathbf\{OC\}\}\} model, global maximum power point tracking, partial shading conditions, shading information",

author = "Ziqiang Bi and Jieming Ma and Man, \{Ka Lok\} and Yong Yue and Smith, \{Jeremy S.\}",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 17th International System-on-Chip Design Conference, ISOCC 2020 ; Conference date: 21-10-2020 Through 24-10-2020",

year = "2020",

month = oct,

day = "21",

doi = "10.1109/ISOCC50952.2020.9333031",

language = "English",

series = "Proceedings - International SoC Design Conference, ISOCC 2020",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Bi, Z, Ma, J , Man, KL , Yue, Y & Smith, JS 2020, A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings. in Proceedings - International SoC Design Conference, ISOCC 2020., 9333031, Proceedings - International SoC Design Conference, ISOCC 2020, Institute of Electrical and Electronics Engineers Inc., pp. 165-166, 17th International System-on-Chip Design Conference, ISOCC 2020, Yeosu, Korea, Republic of, 21/10/20. https://doi.org/10.1109/ISOCC50952.2020.9333031

A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings. / Bi, Ziqiang; Ma, Jieming ; Man, Ka Lok et al.
Proceedings - International SoC Design Conference, ISOCC 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 165-166 9333031 (Proceedings - International SoC Design Conference, ISOCC 2020).

Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review

TY - GEN

T1 - A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings

AU - Bi, Ziqiang

AU - Ma, Jieming

AU - Man, Ka Lok

AU - Yue, Yong

AU - Smith, Jeremy S.

PY - 2020/10/21

Y1 - 2020/10/21

N2 - Multiple peaks in power-voltage (P-V) characteristics of photovoltaic (PV) strings under partial shading conditions (PSC) bring challenges to maximum power point tracking (MPPT) techniques for reaching the global maximum power point (GMPP). Early studies have revealed that the locus of the GMPP can be predicted from the shading information, which is the mathematical indicator to express the PSC. In this paper, a novel global maximum power point tracking (GMPPT) method based on the detection of the shading vector is proposed in this paper. The locus of the GMPP is estimated from the peak matrix transformed by shading vector. Simulation results demonstrate that the proposed GMPPT method is capable of tracking the GMPP efficiently under various shading patterns. By comparing with the original \mathbf{0.8\mathbf{V}{\mathbf{OC}}}-model-based MPPT method, the proposed method reduces the tracking step by 75% while maintaining good prediction accuracy.

AB - Multiple peaks in power-voltage (P-V) characteristics of photovoltaic (PV) strings under partial shading conditions (PSC) bring challenges to maximum power point tracking (MPPT) techniques for reaching the global maximum power point (GMPP). Early studies have revealed that the locus of the GMPP can be predicted from the shading information, which is the mathematical indicator to express the PSC. In this paper, a novel global maximum power point tracking (GMPPT) method based on the detection of the shading vector is proposed in this paper. The locus of the GMPP is estimated from the peak matrix transformed by shading vector. Simulation results demonstrate that the proposed GMPPT method is capable of tracking the GMPP efficiently under various shading patterns. By comparing with the original \mathbf{0.8\mathbf{V}{\mathbf{OC}}}-model-based MPPT method, the proposed method reduces the tracking step by 75% while maintaining good prediction accuracy.

KW - Mathbf{0.8\mathbf{V}{\mathbf{OC}}} model

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KW - partial shading conditions

KW - shading information

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BT - Proceedings - International SoC Design Conference, ISOCC 2020

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 17th International System-on-Chip Design Conference, ISOCC 2020

Y2 - 21 October 2020 through 24 October 2020

ER -

Bi Z, Ma J , Man KL , Yue Y, Smith JS. A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings. In Proceedings - International SoC Design Conference, ISOCC 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 165-166. 9333031. (Proceedings - International SoC Design Conference, ISOCC 2020). doi: 10.1109/ISOCC50952.2020.9333031

A Novel Global Maximum Power Point Tracking Technique based on Shading Detection for Photovoltaic Strings

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