Multi-objective design of a close-coupled inductor for a three-phase interleaved 140kW DC-DC converter

Zwysen, Jeroen; Gelagaev, Ratmir; Driesen, Johan; Goossens, Stijn; Vanvlasselaer, Kris; Symens, Wim; Schuyten, B.

doi:10.1109/iecon.2013.6699279

Cited by 6 publications

(5 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6. The range of validity for the low frequency approximation of the mirroring method given by (2), is fmax,wl=270kHz for the foil winding and fmax,w2=IMHz for the Litz-wire winding.…”

Section: A Validation With Fem Simulationmentioning

confidence: 99%

“…Though FEM suffers from long calculation times and difficult parametrization [1]. The work in [2], which applied a genetic algorithm to optimize a transformer with foil windings, reported calculation times of 20 hours even for a simplified FEM model considering only one harmonic component. However, for most applications it is inevitable to consider more than one harmonic component for accurate loss prediction.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Semi-numerical method for loss-calculation in foil-windings exposed to an air-gap field

Leuenberger

Biela

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

View full text Add to dashboard Cite

The calculation of Eddy current losses in foil windings exposed to a 2-D fringing field is a complex task, due to the current displacement along the height of the foil. For model based optimization of magnetic components, the loss calculation with a 2-D FEM simulation is not an option, due to the high computational ef1"ort. The existing alternative calculation methods, which allow for loss calculation with low computational effort, rely on approximations applicable only for a certain geometrical arrangement of the windings and the air gap. Therefore, a new semi-numerical method is developed to overcome these limitations.The method is based on the mirroring method and is applicable to arbitrary air gaps and winding arrangements. The accuracy of the new method is verified by measurements and the deviation of the model to the measured losses is below 15%.

show abstract

“…6. The range of validity for the low frequency approximation of the mirroring method given by (2), is fmax,wl=270kHz for the foil winding and fmax,w2=IMHz for the Litz-wire winding.…”

Section: A Validation With Fem Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Semi-numerical method for loss-calculation in foil-windings exposed to an air-gap field

Leuenberger

Biela

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

View full text Add to dashboard Cite

show abstract

“…Finite element analysis (FEA) is the most commonly applied approach to calculate the 2-D field but can result in computation times of several hours or days for automated optimization tasks [6]. To overcome this disadvantage different methods have been proposed in [7][8][9][10][11] using FEA simulations to parameterize empirical formulas, that can be used afterwards without performing time-consuming field simulations.…”

Section: Introductionmentioning

confidence: 99%

Analytical eddy current loss model for foil conductors in gapped cores

Ewald¹,

Biela²

2021

2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)

View full text Add to dashboard Cite

For modelling and optimizing gapped high-frequency inductors, the calculation of eddy current losses in foil windings due to the two-dimensional fringing field caused by air gaps in the core is important. The winding loss models must offer a high accuracy when calculating the 2D field distribution and must be computationally efficient in order to enable several thousand calculations in a short time required during the optimization. This article proposes an analytical model based on the magnetic vector potential formulation that can predict the eddy current losses in foil windings due to the fringing field of an arbitrary number of air gaps. The analytical model is used to derive a closed-form loss formula, which is verified by FEA simulations.

show abstract

“…The hardware-in-the-loop simulation for TIDC is investigated in [18], and the current loop control is used to ensure that each phase current is equally distributed. The experiments have also been done and the results show that this scheme is reliable in [19][20][21]. Higure et al [22] propose an inductor current control of TIDC using single DC-link current sensor in the high voltage side.…”

Section: Introductionmentioning

confidence: 99%

A Feed-Forward Control Realizing Fast Response for Three-Branch Interleaved DC-DC Converter in DC Microgrid

et al. 2016

View full text Add to dashboard Cite

It is a common practice for storage batteries to be connected to DC microgrid buses through DC-DC converters for voltage support on islanded operation mode. A feed-forward control based dual-loop constant voltage PI control for three-branch interleaved DC-DC converters (TIDC) is proposed for storage batteries in DC microgrids. The working principle of TIDC is analyzed, and the factors influencing the response rate based on the dual-loop constant voltage control for TIDC are discussed, and then the method of feed-forward control for TIDC is studied to improve the response rate for load changing. A prototype of the TIDC is developed and an experimental platform is built. The experiment results show that DC bus voltage sags or swells caused by load changing can be reduced and the time for voltage recovery can be decreased significantly with the proposed feed-forward control.

show abstract

Multi-objective design of a close-coupled inductor for a three-phase interleaved 140kW DC-DC converter

Cited by 6 publications

References 12 publications

Semi-numerical method for loss-calculation in foil-windings exposed to an air-gap field

Semi-numerical method for loss-calculation in foil-windings exposed to an air-gap field

Analytical eddy current loss model for foil conductors in gapped cores

A Feed-Forward Control Realizing Fast Response for Three-Branch Interleaved DC-DC Converter in DC Microgrid

Contact Info

Product

Resources

About