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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Elnosh, A. Khadkikar, V. Weidong Xiao Kirtely, J.L. |
| Copyright Year | 2014 |
| Description | Author affiliation: Massachusetts Inst. of Technol., Cambridge, MA, USA (Kirtely, J.L.) || EECS Dept., Masdar Inst., Abu Dhabi, United Arab Emirates (Elnosh, A.; Khadkikar, V.; Weidong Xiao) |
| Abstract | This work deals with single-stage three-phase grid-connected Photovoltaic (PV) systems with a focus on developing an efficient Maximum Power Point Tracking (MPPT) technique under partial shading conditions. As partially shaded PV arrays exhibit a multi-modal behavior on their Power-Voltage (P-V) characteristics with a number of possible patterns, the MPPT strategy under such conditions is a complex and challenging task. An Extremum-Seeking Control (ESC) based method is proposed in this paper to track the global power peak under non-uniform irradiance conditions. It relies on the measurements of power and estimation of the power gradient to iteratively determine the segment of the P-V characteristics in which the global peak lies, without converging at the other local maxima. The proposed method is compared to the sequential ESC-based MPPT method presented in the literature. Different test scenarios of partial shading show that the proposed method can reach the global peak with a faster convergence rate and higher tracking efficiency than conventional approaches. |
| Sponsorship | IEEE Ind. Electron. Soc. |
| Starting Page | 2548 |
| Ending Page | 2553 |
| File Size | 656658 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479923991 |
| ISSN | 21635145 |
| DOI | 10.1109/ISIE.2014.6865021 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-06-01 |
| Publisher Place | Turkey |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Maximum power point trackers Turning Convergence Uncertainty Approximation methods Voltage control Mathematical model Extremum Seeking Control (ESC) Photovoltaic Systems MPPT Partial Shading |
| Content Type | Text |
| Resource Type | Article |
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