Impact Assessment of High-Frequency Distortions Produced by PV Inverters

Autor(es)

Torquato, Ricardo ^[1] ; Hax, Glaucio R. T. ^[1] ; Freitas, Walmir ^[1] ; Nassif, Alexandre ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Dept Syst & Energy, BR-13083852 Campinas - Brazil

^[2] ATCO Elect, Edmonton, AB T5J 3N6 - Canada

• Tipo de documento: Artigo Científico
• Fonte: IEEE Transactions on Power Delivery; v. 36, n. 5, p. 2978-2987, OCT 2021.
• Citações Web of Science: 1

Resumo

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)

• Processo FAPESP: 18/24018-0 - Metodologias para a Integração de Medições de Alta Resolução no Gerenciamento dos Sistemas Modernos de Distribuição de Energia Elétrica
• Beneficiário: Ricardo Torquato Borges
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 16/08645-9 - Pesquisas interdisciplinares em redes inteligentes de energia elétrica
• Beneficiário: João Bosco Ribeiro do Val
• Modalidade de apoio: Auxílio à Pesquisa - Temático