A method for determination of harmonics responsibilities at the point of common coupling using data correlation analysis

Shojaie, Mehdi; Mokhtari, Hossein

doi:10.1049/iet-gtd.2013.0111

Cited by 57 publications

(38 citation statements)

References 21 publications

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“…The main idea of this method is to use the fluctuations of background harmonic current [10]. From Fig.3, (6) …”

Section: B Determination Of Harmonic Contributionsmentioning

confidence: 99%

Harmonic contribution assessment on the condition of background harmonic fluctuations

Chen

Fu³

et al. 2015

2015 International Symposium on Smart Electric Distribution Systems and Technologies (EDST)

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This paper proposes a new method for estimating the harmonic contributions of the harmonic sources in condition of the harmonic fluctuations. This method is a combination of the dominant fluctuation filtering method which aims at estimating the background harmonic impedance and the quantile regression method which is used to assess the harmonic contributions. Traditionally, harmonic contributions studies are on the condition of constant background harmonic, which is not adequate for the practical time-varying system. The main idea of the proposed method is that it takes enough consideration and utilization for the fluctuation of background harmonic. The simulation test in IEEE 13-bus system demonstrates the accurate and robust performance of the proposed method in condition of the background harmonic fluctuations, compared to the current methods used in constant background harmonic. Keywords-background harmonic; dominant fluctuation filtering method; quantile regression; harmonic contribution978-1-4799-7736-9/15/$31.00 ©2015 IEEE

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“…The main idea of this method is to use the fluctuations of background harmonic current [10]. From Fig.3, (6) …”

Section: B Determination Of Harmonic Contributionsmentioning

confidence: 99%

Harmonic contribution assessment on the condition of background harmonic fluctuations

Chen

Fu³

et al. 2015

2015 International Symposium on Smart Electric Distribution Systems and Technologies (EDST)

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“…In this context of concept diversity, a number of studies are based on mathematical resources, statistics, and artificial intelligence for determining the main sources that cause distortions in electric systems. Emphasis is given to the point that, in general, most of the procedures proposed along these lines of research commit themselves only to detecting disturbance sources, without establishing levels of responsibility .…”

Section: Introductionmentioning

confidence: 99%

“…Emphasis is given to the point that, in general, most of the procedures proposed along these lines of research commit themselves only to detecting disturbance sources, without establishing levels of responsibility . Furthermore, when proposing harmonic sharing, many studies do not worry about demonstrating, in an effective manner, the connection between their results and the physical principles associated with the problem, a fact that makes recognition of the effectiveness of these proposals difficult …”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7] Furthermore, when proposing harmonic sharing, many studies do not worry about demonstrating, in an effective manner, the connection between their results and the physical principles associated with the problem, a fact that makes recognition of the effectiveness of these proposals difficult. 3,4 On the other hand, there exist propositions [8][9][10][11][12][13][14][15] supported directly by physical phenomena that are involved in the question. In this panorama, a procedure based on harmonic power flow analysis [8][9][10] is not committed to defining portions of responsibility but concentrates on the identification of the agent considered as the major cause of the distortion at the point of interest.…”

Section: Introductionmentioning

confidence: 99%

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Capacitor switching methodology for responsibility sharing of harmonic voltage distortions

Santos

Oliveira

2019

Int Trans Electr Energ Syst

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Summary In the context of the electric power quality, there is not a definitive consensus about the theme sharing of responsibility concerning harmonic distortions. This paper presents a new methodological proposal, based on capacitors switching, which contributes effectively to the scientific breakthroughs needed to close this challenging issue. Following a discussion of the physical concepts that make up the basis of the method, its performance is investigated through two case studies. At first, the tests for the application of the proposed procedure were performed by means of computer simulations, which involved a large‐scale electric system. After this step, laboratory tests were carried out in a setup that maintained a structure very close to that simulated, however, on a reduced scale. In both situations, the results found indicated the consistency of the proposed method, which, due to its robustness and simplicity, has great potential in terms of its application to power systems.

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“…Under certain condition, the harmonic voltage and current all fluctuate simultaneously. The methods above cannot reflect the variation of harmonic voltage and current while the influence of utility harmonic voltage fluctuation is considered in [19][20][21]. In the previous study of the authors, an adaptive assessment approach [19] for harmonic responsibility under utility harmonic voltage variation was proposed.…”

Section: Introductionmentioning

confidence: 99%

A Piecewise Bound Constrained Optimization for Harmonic Responsibilities Assessment under Utility Harmonic Impedance Changes

Zang

Wang

et al. 2017

Energies

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Considering the effect of the utility harmonic impedance variations on harmonic responsibility, a method based on piecewise bound constrained optimization is proposed in this paper to evaluate the load harmonic responsibilities. The wavelet packet transform is employed to determine the change times of the utility harmonic impedances. The harmonic monitoring data is divided into several segments where the utility harmonic impedances are considered as constants. Then, the problem of harmonic responsibility assessment under utility harmonic impedance changes are settled by the piecewise bound constrained optimization model. Furthermore, the interior point, the sequential quadratic programming and the active set algorithm are respectively adopted to calculate all the instantaneous harmonic responsibilities of harmonic loads. Finally, the weighted summation is used to calculate the total harmonic responsibility. To demonstrate the validity, simulation tests are carried out on an experimental circuit and the IEEE 13-bus distribution system.

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A method for determination of harmonics responsibilities at the point of common coupling using data correlation analysis

Cited by 57 publications

References 21 publications

Harmonic contribution assessment on the condition of background harmonic fluctuations

Harmonic contribution assessment on the condition of background harmonic fluctuations

Capacitor switching methodology for responsibility sharing of harmonic voltage distortions

A Piecewise Bound Constrained Optimization for Harmonic Responsibilities Assessment under Utility Harmonic Impedance Changes

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