Advanced voltage sag characterisation II: point on wave

Djokić, Saša Ž.; Milanović, Jovica V.; Rowland, S. M.

doi:10.1049/iet-gtd:20050434

Cited by 62 publications

(31 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…11(a) shows the swell disturbance. Automatic detection and identification of point-on-wave values should replicate the human process of visual inspection [22]. The swell starts just after the little-short oscillation.…”

Section: ) Case 1 Field Swell Disturbance From Ieee Pes Database [21]mentioning

confidence: 99%

A New Transient Power Quality Disturbances Detection Using Strong Trace Filter

Zhang

2014

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

This paper proposed new transient power quality disturbances (PQDs) detection using strong trace filter (STF). By appropriate filter model design, when there are stationary PQDs the STF works as the same as Kalman filter, while when there are transient disturbances the STF indicates each sudden change of the distorted waveform by the fading factor (FF). The FF can also reveal which parameter of the signal component is changing and its sensitivity to sudden change can be tuned by the soften factor easily to avoid noise influence. Besides, the STF is a small algorithm, which can be easily implemented on embedded system for real-time and time-varying detection. Both simulation and experiment suggest that the STF is a good solution for transient PQDs detection.Index Terms-Fading factor (FF), parameter estimation, power quality, strong trace filter (STF), sudden change detection.

show abstract

Section: ) Case 1 Field Swell Disturbance From Ieee Pes Database [21]mentioning

confidence: 99%

A New Transient Power Quality Disturbances Detection Using Strong Trace Filter

Zhang

2014

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

show abstract

“…Basic voltage sag characteristics regarding equipment immunity evaluation are sag type, duration, remaining voltage magnitude, and phase angle jump. Depending on the equipment under test (EUT), other parameters involved, including point-on-wave of dip initiation and ending [7], rate of voltage change, and dip shape [8], are of great importance.…”

Section: Introductionmentioning

confidence: 99%

An Improved Scheme for Voltage Sag Override in Direct Torque Controlled Induction Motor Drives

et al. 2017

View full text Add to dashboard Cite

This paper analyses symmetrical and unsymmetrical voltage sag effects on the torque and speed deviation in direct torque controlled (DTC) induction motors (IMs) for adjustable speed drives (ASDs). The capability of an ASD for continuous normal operation in case of short supply disturbances is essential for high performance drives. In this paper, an updated scheme is proposed for boosting ASD performances during supply disturbances with voltage reduction. Flux weakening is an effective method to overcome the torque-decreasing problem in case of DC-link voltage diminishing. It is also shown that speed reduction is an efficient procedure to obtain the voltage sag insensitivity of an ASD, which is appropriate for the existing industrial applications. Extensive laboratory testing has been conducted to verify the performances and effectiveness of the proposed control algorithm. The suggested method requires only a modification of converter control software or operating speed change without any additional hardware components. Extended tests under various voltage sags events were carried out on a 1.5 kW laboratory drive, and the obtained results have been compared with an industrial DTC drive.

show abstract

“…O mesmo geralmente é ocasionado por curtocircuitos, sobrecargas na rede elétrica e partida de grandes motores [2]. Um estudo sobre uma nova classificação de afundamentos de tensão, de acordo com o tipo, características e presença de componentes de sequência zero, foi apresentado em [3], enquanto que classificações de afundamentos de tensão foram abordadas em [4], [5]. Aplicando-se o conceito de valor agregado, introduzido em [6], consegue-se facilmente identificar afundamentos de tensão balanceados.…”

Section: Introductionunclassified

Um Algoritmo Robusto e Rápido para Detecção de Afundamento de Tensão

Lima¹,

Dantas²,

Guerrero³

et al. 2016

Revista Eletrônica de Potência

View full text Add to dashboard Cite

Afundamento de tensão é um problema recorrente em sistemas elétrico, sendo o mesmo considerado um dos mais relevantes fatores que contribuem para deterioração da qualidade de energia elétrica. Neste artigo, um novo e abrangente algoritmo de detecção de afundamentos de tensão, batizado de ADAMF, é apresentado. O algoritmo pode, rapidamente,detectar afundamentos de tensões simétricos e assimétricos devido a sua habilidade de monitorar, independentemente, a componente fundamental de tensão em cada fase. O valor agregado das tensões, no referencial αβ, é comparado com 0,9 com o intuito de detectar ocorrência deste tipo de contingência. Simulações e resultados experimentais são apresentados para validação do algoritmo proposto.

show abstract

Advanced voltage sag characterisation II: point on wave

Cited by 62 publications

References 8 publications

A New Transient Power Quality Disturbances Detection Using Strong Trace Filter

A New Transient Power Quality Disturbances Detection Using Strong Trace Filter

An Improved Scheme for Voltage Sag Override in Direct Torque Controlled Induction Motor Drives

Um Algoritmo Robusto e Rápido para Detecção de Afundamento de Tensão

Contact Info

Product

Resources

About