A practical method to assess the potential of energy storage systems to mitigate voltage sags

Autor(es)

Cunha, Vinicius C. ^[1] ; Trindade, Fernanda C. L. ^[1] ; Venkatesh, Bala ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Elect & Comp Engn, Av Albert Einstein 400, BR-13083852 Campinas, SP - Brazil

^[2] Ryerson Univ, Ctr Urban Energy, 44 Gerrard St East CUI-233, Toronto, ON M5B 1G3 - Canada

• Tipo de documento: Artigo Científico
• Fonte: Electric Power Systems Research; v. 201, DEC 2021.
• Citações Web of Science: 0

Resumo

Energy storage systems (ESS) have attracted significant interest and investments. Despite this interest, industry and utility engineers have not widely considered this technology as a potential solution to improve the power quality supplied for critical loads. This is in part because of the high cost and in part because of the high complexity to assess this type of solution. This paper, therefore, proposes a practical approach to determine whether shunt/series ESS can mitigate voltage sags assuming the availability of system information, as shortcircuit impedance and historical voltage sags, and load information. This is done by analyzing a chart obtained analytically, which can be easily constructed based on simple information from the system and load, without resorting to computer simulations. By inspecting this chart, engineers can quickly determine not only the ESS capacity required to mitigate specific sags, but also which is the optimum power factor for operation. Sensitivity studies are provided to reveal key factors affecting ESS capability to mitigate voltage sags and to validate the proposed approach. Results outline that the requirements of shunt ESS depend on the system shortcircuit level and X/R ratio, whereas requirements of series ESS depend on the load demand and power factor. (AU)

• Processo FAPESP: 17/10476-3 - Desenvolvimento de metodologias para integração em sistemas de gestão da distribuição na presença de fontes distribuídas de energia e medidores inteligentes
• Beneficiário: Vinicius Carnelossi da Cunha
• Modalidade de apoio: Bolsas no Brasil - 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
• Processo FAPESP: 20/10523-4 - Desenvolvimento de funções avançadas de redes para os sistemas de distribuição de energia elétrica do futuro
• Beneficiário: Fernanda Caseño Trindade Arioli
• Modalidade de apoio: Auxílio à Pesquisa - Regular