On the problem of harmonic source detection in electric power networks

Cieślik, S.

doi:10.1109/cpe.2016.7544163

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…Therefore, researching the distortion characteristics of distribution network equipment parameters and the additional loss caused by the harmonic current is necessary to improve the operation efficiency and utilization rate of distribution network equipment. [1][2][3] [4] ICREET-2022…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of Harmonics on Energy Efficiency of Typical Equipment in Distribution Network

Shen

Zheng

2023

J. Phys.: Conf. Ser.

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With the continuous development of power systems, the number of non-linear loads is increasing. When harmonics flow through wires, transformers, filters, and other devices, additional harmonic losses will be generated, which will cause power loss and safety problems such as equipment overheating. However, there are few studies on loss in complex power quality environments. Considering the influence of skin effect when harmonics flow through the conductor, this paper studies the distribution of current density, explores the influence of conductor material, radius, and frequency of the current flowing through the metal on the current distribution, and proposes a calculation method of conductor harmonic resistance considering the influence of skin effect. Furthermore, the electrical energy consumption of typical devices in the distribution network is considered. Based on the theoretical calculation model, a simulation platform was established to carry out the equipment loss measurement experiment under each harmonic current, and the mutual verification between the theoretical calculation model and the experimental measurement was realized.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of Harmonics on Energy Efficiency of Typical Equipment in Distribution Network

Shen

Zheng

2023

J. Phys.: Conf. Ser.

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“…As a result, it is critical for a power system operator to understand the system's harmonic behavior [11]- [13]. As mentioned in [14]- [18], harmonic sources, on the other hand, have complicated properties such as nonlinearity and abrupt variations that are difficult to forecast using standard methods the foremost common circumstance that needs harmonic source location is to settle the disputes over who is responsible for harmonic distortions, whether it comes upstream or downstream of the point of common coupling (PCC) [19]- [21].…”

Section: Introductionmentioning

confidence: 99%

Identification of harmonic source location in power distribution network

Jopri

Skamyin

Manap

et al. 2022

IJPEDS

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This paper presents the experimental set-up of identification of harmonic source location in the power distribution network using time-frequency analysis, known as S-transform (ST) at the point of common coupling (PCC). S-transform offers high frequency resolution in analyzing the low frequency component and able to represent signal parameters in time-frequency representation (TFR) such as TFR impedance (ZTFR). The proposed method is based on IEEE Std. 1459-2010, ST, and the significant relationship of spectral impedances components (ZS) that been extracted from the ZTFR, consist of the fundamental impedance (Z1) and harmonic impedance (Zh). This experiment was conducted out on an IEEE 4-bus test feeder with a harmonic producing load in numerous different scenarios. The experimental was tested and verified for three consecutive months. The findings of this study reveal that the proposed method provides 100 percent correct identification of harmonic source location.

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