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- W4384305414 abstract "In Brazil, public lighting consumes about 97 billion kWh per year, featuring lamps with low luminous efficiency. To reduce consumption, one solution is to increase the use of lamps with greater luminous efficacy, such as LED (Light Emitting Diode) lamps. For its activation, an AC-DC conversion process for rectification of the network voltage is necessary, which causes some power quality problems, such as a distortion of the network current and a low power factor. To solve these effects, this work uses active power factor correction methods, through a buck-boost converter such as PFC (Power Factor Correction) to emulate a purely resistive load, knowing that its operation in mode discontinuous has an intrinsic function of PFC. An exhaustive study was developed in order to design the control in the converter to protect against possible disturbances and to comply with the IEC 61000-3-2 standard. These measurements ensured system operation with power factor above 0,98 and total harmonic distortion close to zero." @default.
- W4384305414 created "2023-07-15" @default.
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- W4384305414 date "2022-01-01" @default.
- W4384305414 modified "2023-10-14" @default.
- W4384305414 title "Controle de um Retificador Buck-boost de Elevado Fator de Potëncia para Acionamentos de LED’s" @default.
- W4384305414 doi "https://doi.org/10.20906/sbse.v2i1.3068" @default.
- W4384305414 hasPublicationYear "2022" @default.
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