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International Journal of Engineering & Technology Sciences
IJETS 2021, 14 pages - Article ID: IJETS-2106252112358
An Efficient Technique to Measure and Examine the Hysteresis Loss of a Transformer under Source Harmonics
aDepartment of Electrical Engineering, Raghunathpur Govt. Polytechnic,Purulia, India
bDepartment of Electrical Engineering, Govt. College of Engineering and Textile Technology, Berhampore, India
cDepartment of Electrical Engineering, Jadavpur University, Kolkata, India
ABSTRACT
This paper presents a study on the consequence of source-side harmonics on a single-phase transformer. Source harmonics are mostly present in power electronic sources which are commonly used in renewable applications like a fixed frequency inverter for wind power generation. The continued result of source-side harmonics is observed on the hysteresis curve of the core of a transformer. Single-phase transformers are used in the proposed study to detect the effect of harmonics on magnetization and demagnetization cycle using an electronic operational amplifier-based integrator circuit. The study also proposes a modified hysteresis model for the transformer which also considers the effect of harmonics. A technique is presented for effectively storing and plotting the hysteresis curve from the terminal measured data of the single-phase transformer. A source harmonic mitigation technique is also proposed in this paper. The proposed study can be an effective tool for easy measurement and detection of harmonic properties on a transformer. The MATLAB/Simulink based simulations with suitable experiments validate the proposed study.