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An equivalent circuit model for star-star-delta-utilized distribution transformer

Publication Type : Conference Paper

Publisher : IEEE Region 10 Annual International Conference, Proceedings/TENCON, Institute of Electrical and Electronics Engineers Inc.,

Source : IEEE Region 10 Annual International Conference, Proceedings/TENCON, Institute of Electrical and Electronics Engineers Inc., Volume 2015-January (2015)

Url : http://www.scopus.com/inward/record.url?eid=2-s2.0-84940477198&partnerID=40&md5=08d29ba050bcadd7f51fb22bb6836a81

ISBN : 9781479940752

Keywords : Circuit simulation, Circuit theory, Delta wing aircraft, Dependent sources, Distribution transformer, Electric transformer loads, Electric transformers, Equivalent circuit model, Equivalent circuits, Harmonic analysis, Power distribution network, Power recovery, Power system harmonics, Stars, Transformer modeling, Utility power systems, Winding

Campus : Amritapuri

School : School of Engineering

Department : Electrical and Electronics

Year : 2015

Abstract : In the recent years there has been excessive use of nonlinear loads in power distribution network resulting in the injection of harmonics into the utility power system. The triplen harmonics due to non-linear loads circulate in the conventional delta-star distribution transformer resulting in excessive power losses. Star-star-delta-utilized transformer is a modified distribution transformer configuration suggested recently which helps in recovering and utilizing the power wasted due to circulating harmonics in the transformer delta winding. This is achieved by connecting a load across the zero potential terminals of the tertiary delta winding of the transformer. This paper presents a three phase equivalent circuit model for the star-star-delta-utilized transformer. The proposed dependent source model is simulated and compared with the performance of the available transformer model of MATLAB Simulink. The results show that at steady state the performance of the proposed model can replicate the performance of the Simulink model. © 2014 IEEE.

Cite this Research Publication : P. K. Preetha, Jacob, S., and Nair, P. S. C., “An equivalent circuit model for star-star-delta-utilized distribution transformer”, in IEEE Region 10 Annual International Conference, Proceedings/TENCON, 2015, vol. 2015-January

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