Grid voltage harmonics effect on Distribution Transformer operation

Author

Kefalas, Themistoklis D. ; Kladas, A.G.

Author_Institution

Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece

fYear

2010

fDate

7-10 Nov. 2010

Firstpage

1

Lastpage

7

Abstract

Distribution transformer operation is sensitive to the distortion of the supply voltage waveform. According to Strategies for development and diffusion of Energy Efficient Distribution Transformers (SEEDT), reactive power and harmonic losses add a further 5 TWh/year to the losses of European Union (EU-27) distribution transformers. In the present paper a systematic experimental procedure is developed in order to evaluate the effect of voltage harmonics on distribution transformer operation. Also, a theoretical analysis based on the hysteresis design tool of Matlab and a finite element code integrating the hysteresis phenomena is carried out.

Keywords

distribution networks; finite element analysis; hysteresis; mathematics computing; power grids; power system harmonics; transformers; EU-27; European Union distribution transformers; Matlab; distribution transformer operation; energy efficient distribution transformers; finite element code; grid voltage harmonics effect; harmonic losses; hysteresis design tool; reactive power losses; supply voltage waveform; theoretical analysis; Computer aided analysis; finite element methods; industrial power system harmonics; magnetic cores; magnetic hysteresis; magnetic losses; nonlinear magnetics; numerical analysis; power transformers;

fLanguage

English

Publisher

iet

Conference_Titel

Power Generation, Transmission, Distribution and Energy Conversion (MedPower 2010), 7th Mediterranean Conference and Exhibition on

Conference_Location

Agia Napa

Type

conf

DOI

10.1049/cp.2010.0894

Filename

5715972