Abstract
The phenomenon of 'hot-spotting' within photovoltaic (PV) panels, where a mismatched cell/cells heats up, leads to reliability and efficiency issues. In this brief, a novel maximum power point tracking (MPPT) algorithm is developed to compensate for hot-spotted PV module effects, thus increasing the output power and improving reliability. The MPPT algorithm implements two mitigation processes; the first to identify the optimum power-voltage curve to track the global maximum power point (GMPP). The second process is to manipulate the output power toward the GMPP through the control of the perturbation step size. In order to verify the appropriateness of the proposed algorithm, multiple hot-spotted PV modules were tested under various environmental conditions. Significantly, the algorithm reduces the hot-spotted PV modules output power loss by at least 70% under all irradiance transition scenarios, slow, medium, and fast.
| Original language | English |
|---|---|
| Article number | 8620299 |
| Pages (from-to) | 2027-2031 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Circuits and Systems II: Express Briefs |
| Volume | 66 |
| Issue number | 12 |
| Early online date | 21 Jan 2019 |
| DOIs | |
| Publication status | Published - 1 Dec 2019 |
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70% decrease of hot-spotted photovoltaic modules output power loss using novel MPPT algorithm. / Dhimish, Mahmoud.
In: IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 66, No. 12, 8620299, 01.12.2019, p. 2027-2031.Research output: Contribution to journal › Article
TY - JOUR
T1 - 70% decrease of hot-spotted photovoltaic modules output power loss using novel MPPT algorithm
AU - Dhimish, Mahmoud
PY - 2019/12/1
Y1 - 2019/12/1
N2 - The phenomenon of 'hot-spotting' within photovoltaic (PV) panels, where a mismatched cell/cells heats up, leads to reliability and efficiency issues. In this brief, a novel maximum power point tracking (MPPT) algorithm is developed to compensate for hot-spotted PV module effects, thus increasing the output power and improving reliability. The MPPT algorithm implements two mitigation processes; the first to identify the optimum power-voltage curve to track the global maximum power point (GMPP). The second process is to manipulate the output power toward the GMPP through the control of the perturbation step size. In order to verify the appropriateness of the proposed algorithm, multiple hot-spotted PV modules were tested under various environmental conditions. Significantly, the algorithm reduces the hot-spotted PV modules output power loss by at least 70% under all irradiance transition scenarios, slow, medium, and fast.
AB - The phenomenon of 'hot-spotting' within photovoltaic (PV) panels, where a mismatched cell/cells heats up, leads to reliability and efficiency issues. In this brief, a novel maximum power point tracking (MPPT) algorithm is developed to compensate for hot-spotted PV module effects, thus increasing the output power and improving reliability. The MPPT algorithm implements two mitigation processes; the first to identify the optimum power-voltage curve to track the global maximum power point (GMPP). The second process is to manipulate the output power toward the GMPP through the control of the perturbation step size. In order to verify the appropriateness of the proposed algorithm, multiple hot-spotted PV modules were tested under various environmental conditions. Significantly, the algorithm reduces the hot-spotted PV modules output power loss by at least 70% under all irradiance transition scenarios, slow, medium, and fast.
KW - Photovoltaic
KW - Solar energy
KW - hot-spots
KW - MPPT
KW - GMPP
KW - Power mitigation
KW - Thermal imaging
KW - solar energy
KW - power mitigation
KW - thermal imaging
UR - http://www.scopus.com/inward/record.url?scp=85067482516&partnerID=8YFLogxK
U2 - 10.1109/TCSII.2019.2893533
DO - 10.1109/TCSII.2019.2893533
M3 - Article
VL - 66
SP - 2027
EP - 2031
JO - IEEE Transactions on Circuits and Systems II: Express Briefs
JF - IEEE Transactions on Circuits and Systems II: Express Briefs
SN - 1549-8328
IS - 12
M1 - 8620299
ER -