Title :
A Resonant tertiary winding-based novel air-core transformer concept
Author :
Bagheri, Pooya ; Xu, Wei ; Freitas, Wilson
Author_Institution :
Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
Summary form only given. This paper presents a new concept of air-core transformers, which uses a resonant tertiary winding to create a strong coupling between the primary and secondary transformer windings. A large “magnetizing” impedance is achieved because of the resonance. Experimental and analytical studies are carried out on a toroidal air-core transformer to assess the effectiveness of the concept. The results show improvements in transformer performance when compared with the results from simple air-core transformers. The power loss caused by the resonant-winding resistance is identified as the main challenging issue for the proposed method. Since the proposed idea is developed and explained based on the three-winding transformer conventional model, the accuracy of the mathematical model is also verified and validated by the experimental tests.
Keywords :
mathematical analysis; power transformers; transformer windings; air-core transformers; mathematical model; power loss; primary transformer windings; resonant tertiary winding; resonant-winding resistance; secondary transformer windings; three-winding transformer; toroidal air-core transformer; Computers; Couplings; Educational institutions; Magnetic resonance; Mathematical model; Toroidal magnetic fields; Windings;
Conference_Titel :
Power and Energy Society General Meeting (PES), 2013 IEEE
Conference_Location :
Vancouver, BC
DOI :
10.1109/PESMG.2013.6672117