Low Voltage Tariffs in the Context of Decentralized on Grid Photovoltaic Generation

Castro, Pedro Henrique Gonçalves Rigueira Pinheiro; Filho, Delly Oliveira; Toledo, Olga Moraes; Carlo, Joyce Correna; Diniz, Antônia Sônia Alves Cardoso

doi:10.1590/1678-4324-2022210571

Cited by 1 publication

(2 citation statements)

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“…The equipment used to fulfill this function, considering that the power flow only flows in one direction and the voltage decreases downstream of the substation, consisted of on-load tap changers -OLTCs -and shunt capacitors (Castro et al, 2022).…”

Section: Methodsmentioning

confidence: 99%

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Voltage Regulation in Rural Networks With Distributed Generation

et al. 2023

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The increase in distributed generation (DG) interferes with the energy distribution system, which may present low voltages due to voltage drops and high voltages due to the insertion of distributed generation, resulting from renewable energy sources in rural areas. These voltage levels must be controlled to comply with the limits imposed by the distribution rules and procedures (PRODIST). This study aims to evaluate the voltage rise caused by DG, simulating three DG insertion scenarios, as well as simulate strategies to correct these voltage levels, such as the limitation of the active power supply, the reactive supply by the consumer and the utility, and the installation of on-load tap changers. The simulations were performed using the MATLAB ® program, more specifically the PSAT toolbox. Correction techniques were simulated using the active power supply limitation method, the reactive power supply method by consumers, and the voltage regulator process once the voltage rise effect was identified. The first two proved to be ineffective in this case, while the last one meets the voltage levels required by the National Electric Energy Agency.

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Section: Methodsmentioning

confidence: 99%

“…The connection of distributed generation (DG) in the system requires to be evaluated, as this system was not originally designed for such a function, which causes concern for utilities, as it may cause damage to their own equipment and that of their customers (Castro et al, 2022).…”

Section: 𝛥𝑉 = 𝑅𝑃 + 𝑋𝑄 − 𝑄 𝑉mentioning

confidence: 99%