TY - CHAP
T1 - A Design of Partial Shading Detection Method and Global Power Point Searching Technique for Grid-Connected PV System Operating Under Partial Shading Condition
AU - Abri, Waleed Al
AU - Abri, Rashid Al
AU - Yousef, Hassan
AU - Al-Hinai, Amer
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023/3/1
Y1 - 2023/3/1
N2 - The energy harvested by photovoltaic (PV) systems might be greatly reduced by partial shading conditions (PSCs). Nevertheless, it can increase if the PV system runs at the global maximum power point peak (MPPP), which is found using global peak finding tools. The multi-use of these tools, however, will decrease the output of PV systems because they push the PV system to run not within its power region during sweeping the I-V curve to locate the global MPP. So, the global peak finding tools must only be used as soon as a PSC happens. Here, an accurate method is outlined for discovering PSCs by watching out the sign of changes in voltage. It declares PSC occurrence when the sign of each successive voltage change remains the same for a defined number of consecutive changes. By incorporating a global MPP searching method with a partial shading condition detection (PSD) method, the PV system can operate at its greatest efficiency under PSC. So, the paper also proposes an integrated algorithm that combines a global MPP (GMPP) method based on Bald Eagle Searching (BES) with the partial shading detection method. The concept has been validated experimentally using a state-of-the-art real-time digital simulator RTDS to assess the GMPP search BES based method under PSCs. According to RTDS results, the algorithm finds the GMPP in all simulated PSC cases without fail.
AB - The energy harvested by photovoltaic (PV) systems might be greatly reduced by partial shading conditions (PSCs). Nevertheless, it can increase if the PV system runs at the global maximum power point peak (MPPP), which is found using global peak finding tools. The multi-use of these tools, however, will decrease the output of PV systems because they push the PV system to run not within its power region during sweeping the I-V curve to locate the global MPP. So, the global peak finding tools must only be used as soon as a PSC happens. Here, an accurate method is outlined for discovering PSCs by watching out the sign of changes in voltage. It declares PSC occurrence when the sign of each successive voltage change remains the same for a defined number of consecutive changes. By incorporating a global MPP searching method with a partial shading condition detection (PSD) method, the PV system can operate at its greatest efficiency under PSC. So, the paper also proposes an integrated algorithm that combines a global MPP (GMPP) method based on Bald Eagle Searching (BES) with the partial shading detection method. The concept has been validated experimentally using a state-of-the-art real-time digital simulator RTDS to assess the GMPP search BES based method under PSCs. According to RTDS results, the algorithm finds the GMPP in all simulated PSC cases without fail.
KW - Bald Eagle Search Method
KW - Characteristics Curve Tracing
KW - Global Maximum Power Point Tracker
KW - Partial Shading
UR - http://www.scopus.com/inward/record.url?scp=85152770363&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85152770363&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/9cf5ffb8-5ed8-34ee-9960-4ffa769a4537/
U2 - 10.1109/isgtmiddleeast56437.2023.10078492
DO - 10.1109/isgtmiddleeast56437.2023.10078492
M3 - Chapter
AN - SCOPUS:85152770363
SN - 9781665465434
T3 - 2023 IEEE PES Conference on Innovative Smart Grid Technologies - Middle East (ISGT Middle East)
BT - 2023 IEEE PES Conference on Innovative Smart Grid Technologies - Middle East, ISGT Middle East 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE PES Conference on Innovative Smart Grid Technologies - Middle East, ISGT Middle East 2023
Y2 - 12 March 2023 through 15 March 2023
ER -