A Three-Phase UPS That Complies With the Standard IEC 62040-3

Botterón, Fernando; Pinheiro, Humberto

doi:10.1109/tie.2007.894782

Cited by 78 publications

(36 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The value of THD is computed to be 3.47%. The low value of THD validates the sinusoidal current waveform and is well within the limit of the harmonic standard [9][10].…”

Section: Fig 5 Power Factor and Thd Analysissupporting

confidence: 63%

Fuzzy Logic Controller for Three Phase PWM AC-DC Converter

2017

JEEEM

View full text Add to dashboard Cite

Abstract. This paper discusses control strategy for the voltage regulation of a three phase pulse width modulation (PWM) AC-DC converter. A fuzzy logic controller (FLC) is employed in the outer voltage loop. Fuzzy logic controllers are preferred over the conventional proportional integral (PI) controllers because they are based on linguistic description and do not require a prior mathematical model of the system. The objective of the presented control system is to regulate the output DC voltage during both transient and steady state period. Also the line currents drawn from the grid should be sinusoidal and in phase with respective phase voltages to achieve a low total harmonic distortion (THD) and unity power factor. PI and FLC based control systems are implemented for three phase PWM AC-DC converter in MATLAB/Simulink and dynamic performance of the system is tested. The results demonstrate that compared to the conventional PI, the FLC based system is more robust and has a much better dynamic response. The low value of THD and sinusoidal current response ensures the system avoids polluting the utility grid.

show abstract

“…The value of THD is computed to be 3.47%. The low value of THD validates the sinusoidal current waveform and is well within the limit of the harmonic standard [9][10].…”

Section: Fig 5 Power Factor and Thd Analysissupporting

confidence: 63%

Fuzzy Logic Controller for Three Phase PWM AC-DC Converter

2017

JEEEM

View full text Add to dashboard Cite

show abstract

“…This form is similar to the stability judgment criteria in [7], such that the conclusion of conventional RC stability judgment can also be applied in the (4k ± 1)-order RC strategy. The stability judgment equation is expressed in Eq.…”

Section: A (4k ± 1)-order Rcmentioning

confidence: 99%

“…Repetitive control (RC), which is based on the internal model principle [5], can track any periodic signal and eliminate the steady-state tracking error. In [6] and [7], the digital form of the RC internal model is 1/(1 − Z −N ), and the fundamental time delay is Z −N , which means that the RC controller will not act in the first period when the instruction changes. Thus, the dynamic response of the RC controller is not satisfying and is suitable for fast-transient applications.…”

Section: Introductionmentioning

confidence: 99%

A Fast-Transient Repetitive Control Strategy for Programmable Harmonic Current Source

Lei¹,

Nie²,

Chen³

et al. 2017

Journal of Power Electronics

View full text Add to dashboard Cite

The repetitive control (RC) strategy is widely used in AC power systems because of its high performance in tracking period signal and suppressing steady-state error. However, the dynamic response of RC is determined by the fundamental period delay T 0 existing in the internal model. In the current study, a (nk ± i)-order harmonic RC structure is proposed to improve dynamic performance. The proposed structure has less data memory and can improve the tracking speed by n/2 times. T 0 proves the effectiveness of the (nk ± i)-order RC strategy. The simulation and experiments of (6k ± 1)-order and (4k ± 1)-order RC strategy used in the voltage source inverter is conducted in this study to control the harmonic current source, which shows the validity and advantages of the proposed structure.

show abstract

“…Para comparar com os limites da norma, a tensão eficaz após o início transitório deve ser amostrada com frequência mínima de 10 kHz [68] em uma janela de meio-ciclo da rede [69]. O erro da tensão eficaz é comparado com os limites das classes de resposta transitória da IEC 62040-3.…”

Section: ) Faixa De Tensão E Frequênciaunclassified

Conversores Fotovoltaicos Multifuncionais - Classificação e Requisitos de Compatibilidade com a Rede e com as Cargas

Bellinaso¹,

Michels²

2016

Revista Eletrônica de Potência

View full text Add to dashboard Cite

Resumo - MULTIFUNCTIONAL PHOTOVOLTAIC CONVERTERS -CLASSIFICATION AND REQUIREMENTS FOR GRID AND LOAD COMPATIBILITYAbstract -Multifuncional photovoltaic converters, commercially known as hybrid inverters, can feed energy to the grid and have energy storage to feed loads when the grid is absence. Thus, they unite features of grid-tie photovoltaic inverters and uninterruptible power supplies (UPS). This study proposes classifications for these converters and requirements related to the grid and loads. The converters are classified in accordance to UPS configurations of IEC 62040-3 and interruption time during transfers. In the following, general requirements that can be applied to multifunctional photovoltaic converters are listed. Possible grid and load compatibility requirements are analyzed in detail, considering standards NBR 16149, PRODIST and IEC 62040-3. Conflicts were found between these standards, and some solutions are proposed. Recentemente, conversores fotovoltaicos multifuncionais que reúnem características de ambos os inversores grid-tie e off-grid têm sido estudados [10]- [16]. Esses conversores são denominados híbridos por apresentarem uma ou mais fontes de energia além da fotovoltaica [17]. Operam em três modos relacionados à conexão com a rede e alimentação de cargas [14]: i) modo grid-tie, em que fornece potência à rede elétrica como inversor conectado à rede convencional; ii) modo retificador, em que funciona conectado à rede como retificador para carregar baterias pela rede elétrica; e iii) modo off-grid, em que fornece tensão a cargas prioritárias na ausência da rede elétrica. Nesse modo de operação, baterias ou outra fonte ininterrupta é necessária caso a carga não tolere geração fotovoltaica intermitente. Devido a esses três modos, esses conversores podem ser mais bem caracterizados não como a união de inversores conectados à rede e autônomos, mas sim como a união de inversores conectados à rede e fontes ininterruptas de energia (UPSUninterruptible Power Supply), conhecidas popularmente no Brasil como no-breaks.Por ser uma tecnologia recente, normas específicas definindo os requisitos técnicos necessários a esses conversores multifuncionais ainda não foram desenvolvidas. Entretanto, normas relativas a inversores conectados à rede e UPS podem ser consideradas. Atualmente, destacam-se as normas NBR 16149, NBR IEC 62116 e IEC 62109, relativas a inversores conectados à rede, e as normas NBR 15204 [18] e da série IEC 62040, relativas a UPS [19].

show abstract

A Three-Phase UPS That Complies With the Standard IEC 62040-3

Cited by 78 publications

References 19 publications

Fuzzy Logic Controller for Three Phase PWM AC-DC Converter

Fuzzy Logic Controller for Three Phase PWM AC-DC Converter

A Fast-Transient Repetitive Control Strategy for Programmable Harmonic Current Source

Conversores Fotovoltaicos Multifuncionais - Classificação e Requisitos de Compatibilidade com a Rede e com as Cargas

Contact Info

Product

Resources

About