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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Impact Assessment of High-Frequency Distortions Produced by PV Inverters

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Author(s):
Torquato, Ricardo [1] ; Hax, Glaucio R. T. [1] ; Freitas, Walmir [1] ; Nassif, Alexandre [2]
Total Authors: 4
Affiliation:
[1] Univ Estadual Campinas, Dept Syst & Energy, BR-13083852 Campinas - Brazil
[2] ATCO Elect, Edmonton, AB T5J 3N6 - Canada
Total Affiliations: 2
Document type: Journal article
Source: IEEE Transactions on Power Delivery; v. 36, n. 5, p. 2978-2987, OCT 2021.
Web of Science Citations: 1
Abstract

Utility engineers, professionals from regulatory agencies, manufacturers and researchers have discussed if high-frequency distortions produced by rooftop photovoltaic generators are a general power quality concern for distribution systems. In this context, this paper presents the results of an extensive research to investigate the emission and propagation characteristics of such high-frequency distortions. Analytical and theoretical analyses, computer simulations, laboratory experiments and field measurements revealed that high-frequency distortions emitted by rooftop photovoltaic inverters are produced with a voltage source characteristic. As a result, the equivalent grid impedance limits and attenuates significantly the high-frequency distortions injection and propagation into the distribution systems. Moreover, the front-end, low-pass filters found in many home appliances also contribute with such attenuation by sinking part of the high-frequency distortions. In summary, the results indicate that these distortions are unlikely to become a generalized power quality concern, so that the front-end filters commonly available for such devices, when properly designed, are enough to deal with this issue. (AU)

FAPESP's process: 18/24018-0 - Methodologies for the Integration of High-Resolution Measurements on Management of Modern Power Distribution Systems
Grantee:Ricardo Torquato Borges
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 16/08645-9 - Interdisciplinary research activities in electric smart grids
Grantee:João Bosco Ribeiro do Val
Support Opportunities: Research Projects - Thematic Grants