Simulation and Experimental Study of the Three-phase Five-legged Transformer under DC Bias
- 10.2991/lemcs-15.2015.118How to use a DOI?
- Three-phase five-legged transformer; DC bias; Eddy-current; Saturation characteristic; Nonlinear
This paper builds a novel coupled model which includes the electric circuit and the magnetic circuit of the three-phase five-legged transformer under direct current (DC) bias. In the magnetic circuit model, the eddy-currents, the iron core topology and the saturation characteristics of the core material are taken into account. The magnetomotive forces due to the eddy currents are given in the magnetic circuit equations. Combining the electrical circuit with the magnetic circuit, and considering the nonlinear characteristic curve of iron core, the nonlinear equations can be obtained. A series of mathematics transformations are performed and the numerical nonlinear algebraic equations are solved. Then the experimental work of the three-phase five-legged transformer under DC bias has been done. Finally, the simulation results and the experiment results are compared. They are in good agreement. Meanwhile, DC bias problem on the three-phase five-legged transformers is analyzed. It demonstrates the validity of the simulation model and the accuracy of analyzing DC bias phenomenon of the three-phase five-legged transformer.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Xia Dong PY - 2015/07 DA - 2015/07 TI - Simulation and Experimental Study of the Three-phase Five-legged Transformer under DC Bias BT - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science PB - Atlantis Press SP - 615 EP - 619 SN - 1951-6851 UR - https://doi.org/10.2991/lemcs-15.2015.118 DO - 10.2991/lemcs-15.2015.118 ID - Dong2015/07 ER -