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Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules

Maximum power point tracking (MPPT) plays a significant role in a photovoltaic (PV) system's optimal performance. Bypass diodes create multiple peaks on the power-voltage curve during partial shading conditions (PSCs), reducing the PVs overall power extraction capability. This article proposed...

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Main Authors: Shams, Immad, Mekhilef, Saad, Tey, Kok Soon
Format: Article
Published: Institute of Electrical and Electronics Engineers 2022
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.um.edu.my/41150/
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spelling my.um.eprints.411502023-09-08T06:19:03Z http://eprints.um.edu.my/41150/ Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules Shams, Immad Mekhilef, Saad Tey, Kok Soon TK Electrical engineering. Electronics Nuclear engineering Maximum power point tracking (MPPT) plays a significant role in a photovoltaic (PV) system's optimal performance. Bypass diodes create multiple peaks on the power-voltage curve during partial shading conditions (PSCs), reducing the PVs overall power extraction capability. This article proposed a new hybridized architecture for switched inductor and switched capacitor circuit based voltage equalizer (VE) topology with reduced switch count to prevent the multiple peaks and increase the energy yield during PSCs. The proposed VE operates with a fixed duty cycle and frequency. The MPPT controller with PSC detection is also proposed to operate VE only when the PSC is detected to avoid unwanted switching and conduction losses. The proposed system's effectiveness for ten modules connected in series has been determined compared with other modular state-of-the-art VEs. The proposed topology can be extended with a smaller number of control switches. On average, the experimental results showed a 30.42% improvement in energy yield in comparison with the conventional systems. Furthermore, the proposed controller offers the MPPT efficiency of 99.28% with a tracking time of 0.10 s for uniform shaded conditions and 0.692 s for PSCs on average. Institute of Electrical and Electronics Engineers 2022-09 Article PeerReviewed Shams, Immad and Mekhilef, Saad and Tey, Kok Soon (2022) Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules. IEEE Transactions on Industry Applications, 58 (5). pp. 6459-6470. ISSN 0093-9994, DOI https://doi.org/10.1109/TIA.2022.3182644 <https://doi.org/10.1109/TIA.2022.3182644>. 10.1109/TIA.2022.3182644
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Shams, Immad
Mekhilef, Saad
Tey, Kok Soon
Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules
description Maximum power point tracking (MPPT) plays a significant role in a photovoltaic (PV) system's optimal performance. Bypass diodes create multiple peaks on the power-voltage curve during partial shading conditions (PSCs), reducing the PVs overall power extraction capability. This article proposed a new hybridized architecture for switched inductor and switched capacitor circuit based voltage equalizer (VE) topology with reduced switch count to prevent the multiple peaks and increase the energy yield during PSCs. The proposed VE operates with a fixed duty cycle and frequency. The MPPT controller with PSC detection is also proposed to operate VE only when the PSC is detected to avoid unwanted switching and conduction losses. The proposed system's effectiveness for ten modules connected in series has been determined compared with other modular state-of-the-art VEs. The proposed topology can be extended with a smaller number of control switches. On average, the experimental results showed a 30.42% improvement in energy yield in comparison with the conventional systems. Furthermore, the proposed controller offers the MPPT efficiency of 99.28% with a tracking time of 0.10 s for uniform shaded conditions and 0.692 s for PSCs on average.
format Article
author Shams, Immad
Mekhilef, Saad
Tey, Kok Soon
author_facet Shams, Immad
Mekhilef, Saad
Tey, Kok Soon
author_sort Shams, Immad
title Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules
title_short Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules
title_full Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules
title_fullStr Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules
title_full_unstemmed Extendable voltage equalizer topology with reduced switch count and MPPT with partial shading detection capability for long serially connected PV modules
title_sort extendable voltage equalizer topology with reduced switch count and mppt with partial shading detection capability for long serially connected pv modules
publisher Institute of Electrical and Electronics Engineers
publishDate 2022
url http://eprints.um.edu.my/41150/
_version_ 1778161632811155456
score 13.211869

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