Revisiting the active power direction method

Shcherbakova, Polina; Senderovych, Gennady; Abramovitz, Alexander

doi:10.1049/gtd2.12080

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…Problems with assessing the share contribution of distortion sources and with designing harmonic level reduction devices arise in the presence of external sources of distortion relative to the consumer's point of common coupling. There are known methods for estimating the contributions of distortion sources [19][20][21], but many of them are not applicable for determining the design parameters of harmonic-level reduction devices. For example, a method based on a Norton and Thevenin equivalent circuit with two consecutive measurements of harmonic currents and voltages at the PCC shows the grid and consumer contribution ratio of 55 to 45%, even when a shunt passive harmonic filter is used at a consumer bus with a nonlinear load.…”

Section: Introductionmentioning

confidence: 99%

Influence of Background Voltage Distortion on Operation of Passive Harmonic Compensation Devices

Skamyin,

Shklyarskiy,

Gurevich

2024

Energies

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This paper discusses the issues of assessing the influence of external distortion sources on the functioning of a shunt passive harmonic filter. In this study, we evaluated the overload of a passive harmonic filter based on determining the contributions of distortion sources. A method was proposed for assessing the contributions of distortion sources, which allowed us, regardless of background distortions, to determine the contributions of consumer loads, as well as the contribution of background distortions. The simulation was carried out using the Simulink MatLab software (version R2023a). Several scenarios were considered in which the following values were varied: supply feeder impedance, level of background distortions, consumer electrical load composition, and passive filter parameters. It was found that the contribution of the background distortion source decreases with increasing impedance of the supply grid. It was determined that the consumer load contribution is independent of background voltage harmonics and can be used to estimate the overload of a passive harmonic filter. It was shown that it is necessary to take into account the overload of the passive filter by currents from background distortion sources, which did not exceed 135% of the rated rms current for the conditions under consideration. A mathematical model was proposed to estimate the overload of a passive filter in the presence of background voltage distortions. This model was obtained during analytical studies and allows one to evaluate the overload of a passive filter, taking into account the short circuit ratio, detuning frequency and power of the passive filter, and the share contribution of background distortion sources.

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Section: Introductionmentioning

confidence: 99%

Influence of Background Voltage Distortion on Operation of Passive Harmonic Compensation Devices

Skamyin,

Shklyarskiy,

Gurevich

2024

Energies

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“…Consequently, the customers cannot be held liable for PQ violations. Moreover, the faulty installation can also render useless the recently developed methods for determining the location of sources of harmonic distortion [4].…”

Section: Introductionmentioning

confidence: 99%

Error Analysis of Common Power Meter Installation Faults on Three-Phase Networks

Senderovych,

Scherbakova,

Abramovitz

2024

Electronics

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The article is concerned with the operation of electric power quality meters and analyzers when incorrectly installed on a three-phase electrical network. An analytical study of the meter’s errors under the conditions of faulty installation was carried out. All possible types of installation errors are considered according to the proposed classification, as well as possible combinations of a pair of installation faults simultaneously. Classification of installation faults is also proposed. Matrix expressions are derived that allow modeling of any type of installation faults to quantify power and symmetry measurement errors. The proposed method allows to obtain quantitative signs that can identify a specific installation fault. The results of this study can help the development of an algorithm for the automatic detection of installation faults and their correction. The analytical results were confirmed by simulation studies on a three-phase network model in the MATLAB/SIMULINK environment. Experimental results, obtained from a commercial power quality analyzer operated under controlled laboratory conditions, are also reported.

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“…One of the main problems in this case is to determine the degree of impact or the share contribution by a particular consumer at the grid connection point [10,11]. A large number of publications are devoted to this problem [12,13]. These tasks remain relevant over the past decades [14].…”

Section: Introductionmentioning

confidence: 99%

Method for determining the harmonic contribution of consumer installations based on the application of passive filters

Skamyin

2024

IET Generation Trans & Dist

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The paper presents a new method for estimating the contribution of distortion sources based on the application of passive harmonic filters. The method does not require the measurement of harmonic network impedance and is based on the measurement of harmonic currents of the grid, consumers and passive harmonic filters. Evaluation of the consumer contribution using a passive harmonic filter is necessary to select the parameters and connection points for harmonic reduction devices. A feature of the method is the correct determination of share contributions, regardless of background harmonic distortions. Based on this method, a single consumer can evaluate both the harmonic contributions of its own loads, even in the presence of background distortions, and the harmonic voltage distortions in the case of installing harmonic reduction devices. The research results are confirmed in laboratory conditions with various combinations of electrical loads connected both at the grid side and at the consumer side. For such conditions, the proposed method was compared with existing methods, among which are methods based on the measurement of harmonic voltage vectors, harmonic current vectors and active harmonic power. The application of the developed method was demonstrated using the example of a gas production field.

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Revisiting the active power direction method

Cited by 3 publications

References 23 publications

Influence of Background Voltage Distortion on Operation of Passive Harmonic Compensation Devices

Influence of Background Voltage Distortion on Operation of Passive Harmonic Compensation Devices

Error Analysis of Common Power Meter Installation Faults on Three-Phase Networks

Method for determining the harmonic contribution of consumer installations based on the application of passive filters

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