A single-phase to three-phase UPQC topology with universal filtering capabilities

Negrão, Fernando; Silva, Sérgio Augusto Oliveira da; Modesto, Rodrigo Augusto

doi:10.1109/cobep.2015.7420169

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…Em [12] foi apresentado um sistema local de distribuição de energia trifásico a quatro fios (3P4W -3-Phase-4-Wire), cuja implementação foi realizada por meio de um conversor monofásico-trifásico conforme mostrado na Figura 1. No entanto, apenas resultados obtidos via de simulações foram apresentados, assim como não foram abordados maiores detalhes referentes ao dimensionamento dos conversores.…”

Section: Introductionunclassified

Condicionador Unificado de Qualidade de Energia Monofásico–Trifásico Aplicado em Redes de Distribuição de Energia Elétrica MRT

Silva¹,

Negrão²

2017

Eletrônica de Potência

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Resumo -Este trabalho apresenta a validação experimental de um sistema local de distribuição de energia trifásico a quatro fios (3P4W), utilizando uma topologia de condicionador de qualidade de energia unificado (UPQC) monofásica-trifásica denominada UPQC-Mono-Tri. A topologia é indicada para aplicações em áreas rurais ou remotas, nas quais, por razões econômicas, apenas sistemas de distribuição de energia monofásicos com retorno por terra são acessíveis ao consumidor. Uma vez que o uso de cargas trifásicas é crescente nestas áreas, o acesso a um sistema de distribuição trifásico se torna preponderante. Adotando uma estratégia de compensação dual, o UPQC-Mono-Tri proposto é capaz de drenar da rede elétrica monofásica uma corrente senoidal e em fase com a tensão, obtendo-se assim um elevado fator de potência. Além disso, o sistema também é capaz de suprimir harmônicos de tensão da rede, assim como compensar outros distúrbios como, por exemplo, afundamentos de tensão. Desse modo, um sistema 3P4W com tensões reguladas, balanceadas e senoidais com baixos conteúdos harmônicos é disponibilizado para cargas monofásicas e trifásicas. Resultados são apresentados com o objetivo de validar experimentalmente a topologia proposta, bem como avaliar seus desempenhos estáticos e dinâmicos. Palavras-Chave - SINGLE-TO-THREE-PHASE UNIFIED POWER QUALITY CONDITIONER APPLYED TO SWER ELECTRICAL POWER DISTRIBUTION SYSTEMSAbstract -This paper presents the experimental validation of a local three-phase four-wire (3P4W) electrical distribution system, using a single-to-threephase (S-TP) unified power quality conditioner (UPQC) topology, named UPQC-S-TP. The topology is indicated for applications in remote or rural areas, in which, for economic reasons, only single wire earth return networks are available to consumers. Since the use of three-phase loads is increasing in these areas, the access to threephase systems has become mandatory. Adopting a dual compensation strategy, the proposed UPQC-S-TP is able of draining from the single-phase power supply a sinusoidal current in phase with the grid voltage, resulting in high power factor. In addition, the system is also able of eliminating harmonics from the grid voltage, as well as compensating for voltage disturbances, such as voltage sags. Thereby, a 3P4W system with regulated, balanced and harmonic free sinusoidal voltages is provided to both single-and three-phase loads. Experimental results are presented with the purpose of validating the proposed topology, as well as evaluating its static and dynamic performances.

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Section: Introductionunclassified

Condicionador Unificado de Qualidade de Energia Monofásico–Trifásico Aplicado em Redes de Distribuição de Energia Elétrica MRT

Silva¹,

Negrão²

2017

Eletrônica de Potência

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“…For some power systems in Brazil, New Zealand, and Australia, the electric power is supplied from a single-phase power source and supports the combined single-phase and three-phase loads. The single-phase to three-phase UPQC is proposed to mitigate the power quality problem in the aforementioned power systems [125], [126]. In the singlephase to three-phase UPQC topology, the single-phase series converter is implemented utilizing a half-bridge converter, and the three-phase shunt converter is developed utilizing a three-leg converter [125], [126].…”

Section: Single-phase To Three-phasementioning

confidence: 99%

“…The single-phase to three-phase UPQC is proposed to mitigate the power quality problem in the aforementioned power systems [125], [126]. In the singlephase to three-phase UPQC topology, the single-phase series converter is implemented utilizing a half-bridge converter, and the three-phase shunt converter is developed utilizing a three-leg converter [125], [126]. The single-phase to three-phase UPQC is able to achieve the conversion of the single-phase source to the three-phase source and realize the series and shunt power quality compensation as in the traditional UPQCs.…”

Section: Single-phase To Three-phasementioning

confidence: 99%

Optimal design and control implementation of unified power quality conditioner

Ye¹

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In this chapter, the most common power quality problems, i.e., the supply voltage sag and swell, supply voltage harmonic distortion, current harmonic distortion of nonlinear load, and low power factor are discussed in terms of their causes, damages, and disadvantages. Generally, the causes of the aforementioned power quality problems include the overload, sudden change of the loads, connection and disconnection of large loads, connection of large capacitor banks, nonlinear loads, increase of the magnetizing current, etc. These power quality problems may cause the overheat, overvoltage, or overload in the power electrical machines, capacitor banks, transmission cables, distribution cables, bus bar, and connecting lug; generate mechanically resonant in the electrical panels; and cause inductive interference in the neighboring telecommunication lines. Furthermore, the IEEE recommended standards of limiting the power quality problems are clarified. In these recommended standards, the power acceptability curves, i.e., the CBEMA curve, the ITIC curve, and the SEMI F47 curve are utilized to limit the system voltage sag and swell. The recommended voltage and current harmonic limits are discussed in IEEE Standard 519-1992 and 2014. The power supply companies set the acceptable power factor limit to 0.9 and above for the customers.

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Single-Phase to Three-Phase Unified Power Quality Conditioner Applied in Single-Wire Earth Return Electric Power Distribution Grids

Silva

Negrão

2018

IEEE Trans. Power Electron.

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A single-phase to three-phase UPQC topology with universal filtering capabilities

Cited by 3 publications

References 16 publications

Condicionador Unificado de Qualidade de Energia Monofásico–Trifásico Aplicado em Redes de Distribuição de Energia Elétrica MRT

Condicionador Unificado de Qualidade de Energia Monofásico–Trifásico Aplicado em Redes de Distribuição de Energia Elétrica MRT

Optimal design and control implementation of unified power quality conditioner

Single-Phase to Three-Phase Unified Power Quality Conditioner Applied in Single-Wire Earth Return Electric Power Distribution Grids

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