Impact of current high order harmonic to core losses of three-phase distribution transformer

Digalovski, Mihail; Najdenkoski, Krste; Rafajlovski, Goran

doi:10.1109/eurocon.2013.6625181

Cited by 20 publications

(16 citation statements)

References 1 publication

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“…Harmonic voltages increase magnetic core losses in motors and transformers, while harmonics current increase losses in winding and structure of most of the components of electrical systems. These losses cause temperature rise and life-span reduction [8]. Some investigations have studied the effects of harmonics produced by PWM motor drives or by others non-linear devices on electrical industrial systems elements, focusing on motors, transformers and capacitor banks.…”

Section: Introductionmentioning

confidence: 99%

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Harmonic Distortion Evaluation Generated by PWM Motor Drives in Electrical Industrial Systems

Sousa

Herrera

Quispe

et al. 2017

IJECE

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This paper evaluates the harmonic distortion generated by PWM motor drives in an electrical industrial system of a wheat flour mill company. For this, a comparative study between two industrial circuits connected at the same point of common coupling (PCC) with similar characteristics of load and transformers is presented. The difference is that one circuit has PWM motor drives and the other does not have them. In the study, a practical method based on the statistical characterization of the total harmonic distortion of voltage (THDV) and current (THDI), individual voltage distortion (IVD), individual current distortion (ICD) and K-Factor is applied. As result, it was observed that PWM motor drives generated voltage harmonics mainly of fifth and seventh order with values that exceed limits established by standards in both circuits. With these values, the operation of elements such as capacitors, motors and transformers can be affected. In the work is also demonstrated that in the analysis of harmonics is necessary to consider various parameters and not only one.

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Section: Introductionmentioning

confidence: 99%

“…Losses and life expectancy in transformers depend on the level of harmonics and the transformer load [19]. In [8], is observed that core losses could be increased up to 15% in a three-phase distribution transformer, due to effects of higher-order harmonics current produced by nonlinear domestic loads.…”

Section: Introductionmentioning

confidence: 99%

Harmonic Distortion Evaluation Generated by PWM Motor Drives in Electrical Industrial Systems

Sousa

Herrera

Quispe

et al. 2017

IJECE

View full text Add to dashboard Cite

show abstract

“…Harmonic voltages increase magnetic core losses in motors and transformers while harmonic currents increase losses in winding and structure of most of the components of electrical systems. These losses cause temperature rise and life-span reduction [8].…”

Section: Introductionmentioning

confidence: 99%

“…Some investigations have studied the effects of harmonics produced by PWM motor drives or by others non-linear devices on electrical industrial systems elements, focusing on motors [1], [2], [9]- [17], transformers [8], [18]- [21], and capacitor banks [22], [23].…”

Section: Introductionmentioning

confidence: 99%

“…In [18], a study of energy quality in two-distribution transformers of two buildings of a university is carried out. In [8], the power quality in a distribution transformer that feeds a residential power grid is analysed. In [24], the quality of the energy and the harmonics in an electrical circuit with personal computers are characterized.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of harmonic distortion generated by PWM motor drives

Sousa

Hernandez

Quispe

et al. 2017

2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA)

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This paper evaluates the harmonic distortion generated by PWM motor drives in an electrical industrial system of a wheat flour mill company. For this, a comparative study between two industrial circuits connected at the same point of common coupling with similar characteristics of load and transformers is presented. The difference is that one circuit has PWM motor drives and the other does not have them. In the study, a practical method based on the statistical characterization of the total harmonic distortion of voltage (THDV) and current (THDI), individual voltage distortion (IVD), individual current distortion (ICD) and K-Factor is applied. As result, it was observed that PWM motor drives generated harmonics voltage mainly of fifth and seventh order with values that exceed limits established by standards in both circuits. In the work is also demonstrated that in the analysis of harmonics is necessary to consider various parameters and not only one.

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Introductory chapter: effects of power quality problems on energy efficiency of power systems

Cantürk,

Karakaya,

Erhan Balci

et al. 2024

Energy Efficiency of Modern Power and Energy Systems

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Impact of current high order harmonic to core losses of three-phase distribution transformer

Cited by 20 publications

References 1 publication

Harmonic Distortion Evaluation Generated by PWM Motor Drives in Electrical Industrial Systems

Harmonic Distortion Evaluation Generated by PWM Motor Drives in Electrical Industrial Systems

Analysis of harmonic distortion generated by PWM motor drives

Introductory chapter: effects of power quality problems on energy efficiency of power systems

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