Modeling Coreless Transformers With a Relatively Large Wire Gauge Using an Optimization Method

Author(s)

Muller, Renan Bergonsi ^[1] ; Ferreira, Daniela Wolter ^[1] ; Lebensztajn, Luiz ^[1]

Affiliation

^[1] Univ Sao Paulo, Lab Eletromagnetismo Aplicado, Escola Politecn, BR-05508900 Sao Paulo - Brazil

• Document type: Journal article
• Source: IEEE Transactions on Magnetics; v. 50, n. 2 FEB 2014.
• Web of Science Citations: 3

Abstract

Coreless transformers are used in several applications, operating in a large range of frequencies. Their equivalent circuit model is very important to allow the proper design of any electronic circuit or load that may be electrically coupled to them. Especially, in cases where the coils of these devices are modeled with a relatively large wire gauge (when compared with the skin depth), the losses due to eddy currents must be included, otherwise their circuit simulation will be incorrect. This paper proposes a method that allows modeling the lumped parameters of coreless transformers, including the eddy currents. The method uses an optimization algorithm search through a genetic algorithm solver. Although the scope of this paper lies within coreless transformers, the whole method was designed in a generic way to model different types of electric equipment. (AU)

• FAPESP's process: 11/18341-3 - Project of a transcutaneous energy transmitter to supply power to ventricular auxiliary device
• Grantee: Daniela Wolter Ferreira Touma
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 11/22972-9 - Transcutaneous energy transmitter model parameter determination by stochastic optimization methods
• Grantee: Renan Bergonsi Muller
• Support Opportunities: Scholarships in Brazil - Scientific Initiation