Harmonic currents generated by personal computers and their effects on the distribution system neutral current

Aintablian, Harry O.; Hill, H.W.

doi:10.1109/ias.1993.299203

Cited by 19 publications

(7 citation statements)

References 6 publications

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“…But unfortunately switch mode power supplies act as non-liner loads or they can be considered as a noise generators which get down the quality of the electricity supply. Equipments with switch mode circuits are usually more sensitive to main variations and disturbances than liner loads [30]. For this reason power quality has become a major issue for electric utilities and their costumers and almost all manufactures of equipment that despond on sinusoidal supply voltage waveforms.…”

Section: Power Quality Issues Related To Computersmentioning

confidence: 99%

Harmonics Effect in Industrial and University Environments

Shwehdi¹

2011

Power Quality Harmonics Analysis and Real Measurements Data

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Section: Power Quality Issues Related To Computersmentioning

confidence: 99%

Harmonics Effect in Industrial and University Environments

Shwehdi¹

2011

Power Quality Harmonics Analysis and Real Measurements Data

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“…There are many techniques reported for the elimination of harmonics from the source Manuscript current as well as the compensation of the neutral current and load balancing [19]- [23]. Some neutral current compensation techniques have been patented [24]- [27]. Three-phase four wire distribution systems have been used to supply single-phase low-voltage loads.…”

Section: Introductionmentioning

confidence: 99%

Reduced Rating VSC With a Zig-Zag Transformer for Current Compensation in a Three-Phase Four-Wire Distribution System

Singh

Jayaprakash

Somayajulu

et al. 2009

IEEE Trans. Power Delivery

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A detailed investigation is made into the causes, standards, and remedies of the excessive neutral current. A reducedrating voltage-source converter with a zig-zag transformer as a distribution static compensator is proposed for power-quality improvement in the three-phase four-wire distribution system. The proposed DSTATCOM is employed for the compensation of reactive power, harmonics currents, neutral current, load balancing and the voltage regulation at the point of common coupling. The zig-zag transformer is used for providing a path to the zero-sequence current. The performance of the DSTATCOM is validated through extensive simulations using MATLAB software with its Simulink and power system blockset toolboxes.Index Terms-Distribution static compensator (DSTATCOM), neutral current compensation, power quality (PQ), zig-zag transformer.

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“…In non-linear circuits, the triplen harmonic current add arithmathetically in the neutral line resulting in high harmonic distortion [23] [24] in neutral. The 3 rd harmonic is the main contributor of harmonic current [25] [21].…”

Section: Introductionmentioning

confidence: 99%

Neutral Current and Neutral Voltage in Three Phase Four Wire Distribution System of a Technical Institution

Dey¹,

Chakraborty²

2013

IJCA

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Neutral current and neutral voltage in three-phase four-wire distribution system is a big concern in power system. Various non-linear loads specially the switch mode power supply types loads inject harmonic current in neutral. The variations of neutral current and neutral voltage are analysed. Measurements taken from Electrical Machine lab of National Institute of Technology, Agartala are presented to determine the extent of neutral current and neutral voltage problem. The results show the effect of harmonic distortion in neutral conductor.

show abstract

Harmonic currents generated by personal computers and their effects on the distribution system neutral current

Cited by 19 publications

References 6 publications

Harmonics Effect in Industrial and University Environments

Harmonics Effect in Industrial and University Environments

Reduced Rating VSC With a Zig-Zag Transformer for Current Compensation in a Three-Phase Four-Wire Distribution System

Neutral Current and Neutral Voltage in Three Phase Four Wire Distribution System of a Technical Institution

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