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Research Article |

Power Transformer Inrush Current Minimization During Energization using ANFIS based Peak Voltage Tracking Approach

Author(s): Mahmood T. Alkhayyat, Faisal Aiwa, Ali Salah Alhfidh and Mohammed Y. Suliman

Published In : International Journal of Electrical and Electronics Research (IJEER)        Volume 12, Issue 1

Publisher : FOREX Publication

Published : 20 march 2024

e-ISSN : 2347-470X

Page(s) : 211-218

DOI: https://doi.org/10.37391/IJEER.120130

Abstract

Energizing the power transformer at no load causes inrush current flow. The value of this current depends on main three factors, the residual and saturation flux of the transformer core, the rating of the transformer, and the switching instant. Inrush current may decrease the life of the transformer and causes mall function of the protective relays. Many efforts were done for limiting the inrush current using a current limiter or improve the core material to reduce residual flux. Other treating is to control energizing instance. This paper focused on controlling the instant of the transformer energization switch using fuzzy logic inference system. A new technique depends on adaptive seeking the crest of the voltage waveform. By this method there is no need to zero-crossing technique or phase looked loop. At this point, the flux of the core reaches the minimum value. Simulation and laboratory results show the success of this technique in reducing the inrush current. This technique gives the freedom to the operational engineering for energizing the power transformer at any time.

Keywords: Inrush current, Energizing transformer, Switching control.




Mahmood T. Alkhayyat*, Northern Technical University, Iraq; Email: m.t.alkhayyat@ntu.edu.iq

Faisal Aiwa, Mosul University, Iraq; Email: faisal.falah@uomosul.edu.iq

Ali Salah Alhfidh, Northern Technical University, Iraq; Email: ali.alhafidh@ntu.edu.iq

Mohammed Y. Suliman, Northern Technical University, Iraq; Email: mohammedyahya@ntu.edu.iq

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Mahmood T. Alkhayyat, Faisal Aiwa, Ali Salah Alhfidh and Mohammed Y. Suliman (2024), Power Transformer Inrush Current Minimization During Energization using ANFIS based Peak Voltage Tracking Approach. IJEER 12(1), 211-218. DOI: 10.37391/IJEER.120130.