Multiport converters for fast chargers of electrical vehicles - Focus on high-frequency coaxial transformers

Waltrich, Gierri; Duarte, J.L.; Hendrix, M.A.M.

doi:10.1109/ipec.2010.5543381

Cited by 13 publications

(8 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All parameters in Fig. 7 can be calculated by FEM and by using (14)- (16). The magnetic inductances of the PW L 1 and SW L 2 obtained using FEM are shown in Table 4.…”

Section: Fig 3 Magnetic Flux Density Distribution Of the Sctr In Thementioning

confidence: 99%

See 1 more Smart Citation

Characteristic analysis and design of novel high‐frequency shell‐type coaxial transformer

Lee¹,

Kim

Park

et al. 2019

IET Electric Power Applications

View full text Add to dashboard Cite

Recently, power conversion systems (PCSs) have exhibited high efficiencies and miniaturisation, and this trend is expected to grow in the future. An important component of the PCS, which accounts for a significant portion of its volume, is the transformer (TR). However, it is difficult to achieve a significant increase in the efficiency and reduction in the volume of a PCS using a conventional TR, as the conventional TRs do not offer much scope for further optimisation. To overcome this limitation imposed by the conventional TRs, a novel and practical high-frequency coaxial TR, named the shell-type coaxial TR (SCTR), is proposed in this work. A useful and strategic analysis and design method, which covers the overall development process from the design stage to the experimental validation stage of the proposed high-frequency SCTR, is also proposed. The usefulness of the proposed SCTR and the analysis and design method are verified by designing an SCTR for a 50 W DC/DC converter and conducting experiments on it. It is found that the use of the proposed technique can cause a significant increase in the efficiency and power density of the PCS

show abstract

“…All parameters in Fig. 7 can be calculated by FEM and by using (14)- (16). The magnetic inductances of the PW L 1 and SW L 2 obtained using FEM are shown in Table 4.…”

Section: Fig 3 Magnetic Flux Density Distribution Of the Sctr In Thementioning

confidence: 99%

“…Moreover, the shell-type core of the SCTR improves practicality and compatibility. By applying the proposed novel and practical SCTR in a converter, the efficiency and power density of the converter can be increased dramatically [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Characteristic analysis and design of novel high‐frequency shell‐type coaxial transformer

Lee¹,

Kim

Park

et al. 2019

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

“…To calculate the leakage inductance, a coaxial transformer described in [3] is used. For convenience, this model is repeated here in Figure 1.…”

Section: Design Of a Two Winding Coaxial Transformermentioning

confidence: 99%

“…However, it is also possible to find some applications on the power electronics field [2] [3]. For instance, in [4] is shown a successfully implementation of a high-frequency coaxial transformers in a power level of 120 kW.…”

Section: Introductionmentioning

confidence: 99%

Inductances Design of High-Frequency Coaxial Transformers

Waltrich¹

2016

OALib

View full text Add to dashboard Cite

In this paper is proposed a methodology to properly determine the leakage and magnetizing inductance of a single-phase high-frequency coaxial transformer. Both, leakage and magnetizing inductance equations are determined considering the transformer dimensions, the ferromagnetic characteristics, and the number of turners. Finite element methods (FEM) and a low scale prototype are also used to validate the equations. The results show that the leakage and magnetizing inductances can be precisely calculated with an error lower than 5% and 3%, respectively.

show abstract

“…The main purpose of the proposed topology is to deliver energy from the grid to the EV battery. The energy overflow can be stored in the energy storage [6]. Energy storage between the charging cycles is replenished by the solar cell array or the grid.…”

Section: Introductionmentioning

confidence: 99%

Electric vehicle multiport fast charger based on the concept of active power electronic transformer

Jalakas

Roasto

Gallardo-Lozano

et al. 2014

2014 16th European Conference on Power Electronics and Applications

View full text Add to dashboard Cite

This paper describes a new multiport fast charger for an electric vehicle based on the concept of the active power electronic transformer. Energy sources, chargeable batteries and storages are connected together via a common multi-winding transformer and simple full-bridge inverters. The theoretical control principles and the proposed topology are verified by computer simulations. KEYWORDSPower converters for EV, converter control, battery management systems.

show abstract

Multiport converters for fast chargers of electrical vehicles - Focus on high-frequency coaxial transformers

Cited by 13 publications

References 8 publications

Characteristic analysis and design of novel high‐frequency shell‐type coaxial transformer

Characteristic analysis and design of novel high‐frequency shell‐type coaxial transformer

Inductances Design of High-Frequency Coaxial Transformers

Electric vehicle multiport fast charger based on the concept of active power electronic transformer

Contact Info

Product

Resources

About