Necessity Analysis of Bypass Diode for AC Module under Partial Shading Condition
To protect a photovoltaic module from the hot spot effect more efficiently, an AC (alternating current) module that contains a module-level MPPT (maximum power point tracking) has been put forward. In this paper, operation states of shadowed solar cells and relevant bypass diodes were studied throug...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/16/4778 |
| _version_ | 1797524026658127872 |
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| author | Huixue Ren Peide Han |
| author_facet | Huixue Ren Peide Han |
| author_sort | Huixue Ren |
| collection | DOAJ |
| description | To protect a photovoltaic module from the hot spot effect more efficiently, an AC (alternating current) module that contains a module-level MPPT (maximum power point tracking) has been put forward. In this paper, operation states of shadowed solar cells and relevant bypass diodes were studied through MATLAB/Simulink tools, and a commercial PV module was used to reveal the temperature change when working at different LMPP (local maximum power point). Experiment results show that bypass diode can reduce power loss for the AC module to some extent but has a limited effect on protecting the AC module from the hot spot effect. Instead, it is more likely to form a local hot spot when the bypass diode turns on, and the worst shading condition for the AC module with bypass diode is about 46.5% during work states. |
| first_indexed | 2024-03-10T08:51:28Z |
| format | Article |
| id | doaj.art-3b863bace8a64718822d1dddee6a0c25 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T08:51:28Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3b863bace8a64718822d1dddee6a0c252023-11-22T07:27:16ZengMDPI AGEnergies1996-10732021-08-011416477810.3390/en14164778Necessity Analysis of Bypass Diode for AC Module under Partial Shading ConditionHuixue Ren0Peide Han1State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaTo protect a photovoltaic module from the hot spot effect more efficiently, an AC (alternating current) module that contains a module-level MPPT (maximum power point tracking) has been put forward. In this paper, operation states of shadowed solar cells and relevant bypass diodes were studied through MATLAB/Simulink tools, and a commercial PV module was used to reveal the temperature change when working at different LMPP (local maximum power point). Experiment results show that bypass diode can reduce power loss for the AC module to some extent but has a limited effect on protecting the AC module from the hot spot effect. Instead, it is more likely to form a local hot spot when the bypass diode turns on, and the worst shading condition for the AC module with bypass diode is about 46.5% during work states.https://www.mdpi.com/1996-1073/14/16/4778bypass diodehot spot effectPV moduleAC modulemodule level MPPT |
| spellingShingle | Huixue Ren Peide Han Necessity Analysis of Bypass Diode for AC Module under Partial Shading Condition Energies bypass diode hot spot effect PV module AC module module level MPPT |
| title | Necessity Analysis of Bypass Diode for AC Module under Partial Shading Condition |
| title_full | Necessity Analysis of Bypass Diode for AC Module under Partial Shading Condition |
| title_fullStr | Necessity Analysis of Bypass Diode for AC Module under Partial Shading Condition |
| title_full_unstemmed | Necessity Analysis of Bypass Diode for AC Module under Partial Shading Condition |
| title_short | Necessity Analysis of Bypass Diode for AC Module under Partial Shading Condition |
| title_sort | necessity analysis of bypass diode for ac module under partial shading condition |
| topic | bypass diode hot spot effect PV module AC module module level MPPT |
| url | https://www.mdpi.com/1996-1073/14/16/4778 |
| work_keys_str_mv | AT huixueren necessityanalysisofbypassdiodeforacmoduleunderpartialshadingcondition AT peidehan necessityanalysisofbypassdiodeforacmoduleunderpartialshadingcondition |