Single-phase universal active power filter based on AC/AC converters

Rodrigues, Phelipe L. S.; Jacobina, Cursino B.; Corrêa, Maurício B. R.

doi:10.1109/ecce.2016.7855440

Cited by 15 publications

(5 citation statements)

References 27 publications

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“…The reference vector is represented by v * = v g * + jv l * , where v g * and v l * correspond to real (Re) and imaginary (Im) axes, respectively. The space vector technique for the conventional UAPF operating with N = 1/2 was discussed in [10] and its space vector plane can be seen in Fig. 3a.…”

Section: Modulation Techniquementioning

confidence: 99%

“…The space vector technique for the conventional UAPF operating with

N = 1 / 2

was discussed in [10] and its space vector plane can be seen in Fig. 3 a .…”

Section: Modulation Techniquementioning

confidence: 99%

“…Ac-dc-ac converters have several applications [1][2][3][4] and these converters have been extensively studied in the literature. Among the usual applications, it is worth mentioning the use of ac-dc-ac converters as active power filters (APFs) [5][6][7][8][9][10]. APFs are divided into series, shunt, and universal.…”

Section: Introductionmentioning

confidence: 99%

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Single‐phase universal active power filter based on ac–dc–ac converter with eight controlled switches

Rodrigues

Jacobina

Freitas

2019

IET Power Electronics

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This study presents an ac-dc-ac converter with eight controlled switches. The proposed topology is applied as a universal active power filter, compensating for disturbances in the grid voltage, voltage sags/swells, and harmonics generated by non-linear loads. The difference between the proposed and conventional solution is the addition of an uncontrolled leg (composed only of diodes) to increase the number of voltage levels, reducing harmonics and the average switching frequency. For performance comparisons, current total harmonic distortion (THD), voltage weighted THD, switching and conduction losses of the semiconductors, and average switching frequency were used as parameters. Control and pulse-width modulation techniques based on space vector approaches were developed to eliminate zero-crossing distortions caused by the use of the uncontrolled leg. Simulation and experimental results were presented for validation of the mathematical model.

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Section: Modulation Techniquementioning

confidence: 99%

“…The space vector technique for the conventional UAPF operating with

N = 1 / 2

was discussed in [10] and its space vector plane can be seen in Fig. 3 a .…”

Section: Modulation Techniquementioning

confidence: 99%

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Single‐phase universal active power filter based on ac–dc–ac converter with eight controlled switches

Rodrigues

Jacobina

Freitas

2019

IET Power Electronics

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“…1-phase H.W.C, it means the switch electronic number is one diode or thyristor. It works in half wave of voltage source when switch electronic is ON [27][28][29]. 1phase F.W.C, it means the switch electronic number is four diodes or thyristors [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Simulation Model of Single-Phase AC-AC Converter by Using MATLAB

Shaker¹,

Shneen²,

Abdullah³

et al. 2022

Journal of Robotics and Control

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The current research sheds light on the electronic power devices that work as transformers and are named according to the function. A model of a single-phase transformer AC-AC type with half-wave and full-wave quality has been proposed. Its output is controlled by power, voltage and current, which is considered an input to the load. The fixed input transformer has a variable output according to the required power, voltage and current. Inverters of this type have so many uses that they are used in many different applications, including industrial, induction motor speed control, military, medical and household, including low-light circuits, among others. A simulation involving different types of single-phase AC transformers is proposed. The models were built in two ways, the first using a diode as an electronic switch, and the second using a thyristor. Different values for the load were chosen by adopting three values of 30 ohms, 40 ohms, and 50 ohms. An alternating power supply with an RMS value of 222 volts. Simulation was carried out after modeling to test the performance of the proposed transformer and its various modes of operation. Simulation models confirmed and reinforced the working theories of the proposed structures. From the results, we can reach the possibility of changing the voltage and power values using the electronic transformer by using the frequency of closing and opening the electronic keys within specific periods according to the proposed model, which can be represented or modified.

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“…[6][7][8] In order to promote comprehensive and humanized care, nurses must act on the preservation and protection of children's lives with adequate understanding and recognition of their biopsychosocial and spiritual needs, in addition to guaranteeing the observation of child advocacy as defined by law during the care practice. 1,[9][10] In Brazil, childhood protection rights were established with the enactment of the 1988 Federal Constitution, which was a large step towards guaranteeing child advocacy. 11 However, what indeed definitely marked the progress of child advocacy in society, as well as during hospitalization, was the enactment of Law no.…”

Section: Introductionmentioning

confidence: 99%

Validação Teórica De Escala De Atitudes Das Enfermeiras Sobre Direitos Da Criança Em Terapia Intensiva

Martinez

Oliveira²,

Bastos

et al. 2017

Texto contexto - enferm.

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RESUMO Objetivo: construir e validar o conteúdo teórico da escala de atitudes das enfermeiras frente aos direitos da criança na unidade de terapia intensiva pediátrica. Método: estudo metodológico que descreve a construção e validação teórica da escala mediante revisão bibliográfica, análise semântica e validação de conteúdo por juízes/enfermeiros, utilizando o coeficiente de validade de conteúdo e coeficiente de correlação intraclasse. Resultados: a Escala de Atitudes das Enfermeiras frente aos Direitos da Criança na Unidade de Terapia Intensiva Pediátrica foi validada por 15 enfermeiros especialistas na área da saúde da criança, distribuídos pelas cinco regiões do Brasil, e ficou composta por 99 itens, distribuídos pelas dimensões dos componentes cognitivo, afetivo e comportamental da atitude. O coeficiente de validade de conteúdo de cada dimensão foi de 0,91, 0,86 e 0,89, respectivamente, e o coeficiente de correlação intraclasse final da escala de r=0,76. Conclusão: a Escala apresentou evidências de validade de conteúdo e os itens abordaram as atitudes das enfermeiras na prática assistencial em Unidade de Terapia Intensiva Pediátrica, o que permitirá a avaliação dos direitos da criança hospitalizada.

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Single-phase universal active power filter based on AC/AC converters

Cited by 15 publications

References 27 publications

Single‐phase universal active power filter based on ac–dc–ac converter with eight controlled switches

Single‐phase universal active power filter based on ac–dc–ac converter with eight controlled switches

Simulation Model of Single-Phase AC-AC Converter by Using MATLAB

Validação Teórica De Escala De Atitudes Das Enfermeiras Sobre Direitos Da Criança Em Terapia Intensiva

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