Título principal
Impactos da inserção de geração fotovoltaica e de sistemas de armazenamento de energia em baterias sobre o fator de potência de unidades consumidoras alimentadas em média tensão / Fernando André Cossengue Caiavi ; orientadora, Helena Flávia Naspolini.
Data de publicação
2024
Descrição física
93 p. : il.
Nota
Disponível somente em versão on-line.
Dissertação (mestrado) – Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2024.
Inclui referências.
Impactos da inserção de geração fotovoltaica e de sistemas de armazenamento de energia em baterias sobre o fator de potência de unidades consumidoras alimentadas em média tensão / Fernando André Cossengue Caiavi ; orientadora, Helena Flávia Naspolini.
Data de publicação
2024
Descrição física
93 p. : il.
Nota
Disponível somente em versão on-line.
Dissertação (mestrado) – Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2024.
Inclui referências.
Abstract: The Normative Resolution No. 1,000 of the National Electric Energy Agency (ANEEL), dated December 7, 2021, establishes guidelines for the power factor (PF) of consumer units (UC) subject to hourly tariffing. This resolution sets a minimum limit of 0.92 for the PF, requires hourly evaluation of the PF, and billing of excess reactive energy and excess reactive demand on an hourly basis. This study aims to analyze the effects of integrating photovoltaic generation (PV) and energy storage systems in batteries (BESS) into UCs on the PF. Profiles of active demand, reactive demand, and PF of the UC without PV or BESS systems, and with these systems implemented, were analyzed. The results showed that, without PV and BESS systems, during the period from 11:30 PM to 5:30 AM, the UC exhibits a PF lower than 0.92, resulting in billing for excess reactive energy and billing for fines from the distributor. Between 5:30 AM and 11:30 PM, the PF is capacitive and the network is inductive, so there are no fines. With the integration of PV and BESS systems between 5:30 AM and 11:30 PM, when there is excess active energy to be injected into the grid, the UC's PF is capacitive, and the grid also; therefore, if the PF is less than 0.92, fines are charged for excess reactive energy. In complementary periods, when the UC injects active power into the grid, its PF is inductive, subjecting it to fines when the PF is less than 0.92. For the analyzed period, despite the increase in expenses related to excess reactive energy, the integration of PV and BESS systems resulted in a significant reduction in total electricity expenses for UFSC (UC FV UFSC and UC University City), providing savings of over 102%.