Modeling of Single-Phase Photovoltaic Generators for System-Wide Harmonic Power Flow Studies

Autor(es)

Arguello, Andres ; Torquato, Ricardo ; Rosado, Barbara ; Freitas, Walmir

• Tipo de documento: Artigo Científico
• Fonte: IEEE Transactions on Energy Conversion; v. 38, n. 2, p. 13-pg., 2023-06-01.

Resumo

An important power quality concern of integrating single-phase photovoltaic (PV) generators to low-voltage (LV) residential systems, is their impact on harmonic distortions due to their power electronic-based interface through a voltage source converter (VSC). Unfortunately, most existing single-phase PV models are focused on the analysis of an individual device, and do not provide a modular circuit model that can be directly integrated into a commercial harmonic power flow simulation tool for large-scale power system studies. In response, this paper derives a single-input single-output harmonic model for single-phase PVs that is independent of grid parameters, thus enabling multiple of these devices to be considered simultaneously in system-wide harmonic power flow analyses. The model is validated with electromagnetic transient simulations and then, characterization studies are conducted to determine the expected harmonic impact of these PV generators on a real LV system. Results demonstrate these devices can increase system damping at typical low order harmonics and are unlikely to introduce new resonances at this frequency range. In addition, it is essential to model the VSC controller effect for a more accurate assessment of its harmonic impact. Sensitivity studies reveal how different VSC parameters affect this behavior. (AU)

• 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
• Processo FAPESP: 20/10043-2 - Análise de Dados para Monitoramento em Modernos Sistemas de Distribuição de Energia Elétrica
• Beneficiário: Bárbara Resende Rosado
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• 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: 21/11380-5 - CPTEn - Centro Paulista de Estudos da Transição Energética
• Beneficiário: Luiz Carlos Pereira da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Ciência para o Desenvolvimento