| Issue |
E3S Web Conf.
Volume 64, 2018
2018 3rd International Conference on Power and Renewable Energy
|
|
|---|---|---|
| Article Number | 06007 | |
| Number of page(s) | 5 | |
| Section | Photovoltaic Systems and Power Generation Technologies | |
| DOI | https://doi.org/10.1051/e3sconf/20186406007 | |
| Published online | 27 November 2018 | |
Offline Photovoltaic Maximum Power Point Tracking
University of Strathclyde, Department of Electrical and Electronics Engineering, 16 Richmond Street, G1 1XQ, Glasgow, United Kingdom
As more renewable energy sources are connected to the electrical grid, it has become important that these sources participate in providing system support. It has become needful for grid-connected solar photovoltaics to participate in support functions like frequency support. However, photovoltaic systems need to implement a maximum power tracking algorithm to operate at maximum power and a method for de-loading photovoltaic systems is necessary for participation in frequency support. Some conventional maximum power tracking techniques are implemented in real time and will not adjust their output fast enough to provide system support while other may respond fast but are not very efficient in tracking the maximum power point of a photovoltaic system. This paper presents an offline method to estimate the maximum power voltage and current based on the characteristics of the photovoltaics module available in the datasheet and using the estimated values to operate the photovoltaics at maximum power. The performance of this technique is compared to the conventional technique. This paper also describes how the photovoltaic system can be de-loaded.
© The Authors, published by EDP Sciences, 2018
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