Unbalance Voltage Sag Fault-Type Characterization Algorithm for Recorded Waveform

Thakur, Padmanabh; Singh, Asheesh Kumar

doi:10.1109/tpwrd.2012.2229396

Cited by 40 publications

(25 citation statements)

References 13 publications

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“…The "Three-phase Voltages Three-phase Angles" method is proposed in [19] by Madrigal and the "Three-Phase Angle (TPA)" method in [20] by Thakur. Algorithms in this group are seen to give a result closest to the dip type in relation to the fault type. There are however practical problems related to obtaining the complex voltages [18].…”

Section: A Overview Of Proposed Methodsmentioning

confidence: 99%

Single-Event Characteristics for Voltage Dips in Three-Phase Systems

Wang

Bagheri

Bollen

et al. 2017

IEEE Trans. Power Delivery

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This paper compares different methods for voltagedip characterization. Those methods are based on earlier proposed algorithms for extracting three-phase characteristics (dip type, characteristic voltage, and so-called "PN factor"). The difference between the 12 methods being studied in this paper is in the way in which the time variation of those characteristics is treated to result in single-event characteristics. The methods are applied to 259 measured voltage dips and the performance of the different methods is compared. It is found that small differences in method can result in big difference in results. From the comparison, two methods are selected and recommended for inclusion in international standards.

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Section: A Overview Of Proposed Methodsmentioning

confidence: 99%

Single-Event Characteristics for Voltage Dips in Three-Phase Systems

Wang

Bagheri

Bollen

et al. 2017

IEEE Trans. Power Delivery

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“…The symmetrical component method [2], [3] does not have this limitation, but it is more difficult to implement and sensitive to small frequency errors. An alternative method has been proposed [4], but also that one is not yet ready for practical implementation. Further studies are needed to quantify how the choice of method to obtain the characteristic voltage impacts the characteristic PAJ.…”

Section: B Single-and Three-phase Approachmentioning

confidence: 99%

Calculation of the Phase-Angle-Jump for Voltage Dips in Three-Phase Systems

Wang

Bollen

Xiao

2015

IEEE Trans. Power Delivery

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The phase-angle-jump is defined in this paper as another single-event characteristic of voltage dips, besides residual or characteristic voltage and duration. This paper proposes and compares six methods to calculate the phase-angle-jump for measured voltage dips in a three-phase system. This paper also studies the details of the calculation: correcting frequency and transition segments. The six proposed methods have been applied to 235 sets of measured voltage dips and a statistical comparison has been made. It is recommended that two of the methods be included in IEEE Standard 1564 and IEC 61000-4-30.Index Terms-Power quality (PQ), PQ indices, power system faults, power transmission and distribution, voltage dips.

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“…Determining the type of voltage dip in the case of real measurements can be done using several algorithms. Two algorithms are found in [13], and another version in [15]. For the virtual instrument presented in this paper, the first algorithm presented in [13], called "Symmetrical Components Method", was chosen.…”

Section: Virtual Instrument Designmentioning

confidence: 99%

LabVIEW implementation for three-phase voltage dip classification

Baloi

Molnar-Matei

Pană

et al. 2015

2015 16th International Scientific Conference on Electric Power Engineering (EPE)

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Voltage dips are the most common voltage disturbance in electrical networks operation. A single phase dip is characterized by several amounts such as amplitude, phase shift, start point on wave and end point on wave. Given that electricity grids are three-phase grids and voltage dips can affect one, two or all three phases, researchers have proposed over time many methods of classifying them, which can be found in the literature. Generally, power quality analyzers offer a voltage dips characterization, but don't offer a voltage dip classification. In this context, the paper presents a virtual instrument, proposed by the authors, for the voltage dip classification. The procedure for voltage dip classification is first theoretically explained, and then the corresponding LabVIEW sequences are described. On the front panel of the virtual instrument is presented a list of all possible types of dips, established according to the affected phases, and the corresponding type of each voltage dip is selected from this list. For exemplification, files containing voltage dips recordings from a 220/110 kV substation are used. The paper presents the results obtained for two different voltage dip types.

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Unbalance Voltage Sag Fault-Type Characterization Algorithm for Recorded Waveform

Cited by 40 publications

References 13 publications

Single-Event Characteristics for Voltage Dips in Three-Phase Systems

Single-Event Characteristics for Voltage Dips in Three-Phase Systems

Calculation of the Phase-Angle-Jump for Voltage Dips in Three-Phase Systems

LabVIEW implementation for three-phase voltage dip classification

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