Title :
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
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;
Conference_Titel :
Power Generation, Transmission, Distribution and Energy Conversion (MedPower 2010), 7th Mediterranean Conference and Exhibition on
Conference_Location :
Agia Napa
DOI :
10.1049/cp.2010.0894
