EPE Association: EPE 2025 - LS4c: Magnetic Components

EPE 2025 - LS4c: Magnetic Components - Inductors and Transformers
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 08: Components linked to Power Electronics > EPE 2025 - LS4c: Magnetic Components - Inductors and Transformers

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   Correlation of measured and simulated inductances in laminated bus bars
By Abdelilah GOULMANE, Simon DARIO, Thomas FOUET [View]
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Abstract: Bus bars are key in the development and improvement of electrical systems that use power converters that are an essential part in smart grid systems. Bus bars, and especially laminated ones, can help reduce inductance and minimize switching losses, thereby enhancing the overall performance of converters. This highlights the critical need to accurately determine the inductance of bus bars, and then optimize their design accordingly. This publication focuses on different way to measure inductance of laminated bus bars and the correlation with simulation. The presented results demonstrate the sensitivity of inductance measurements, primarily influenced by the measurement setup. Well controlled, it is possible to obtain a strong correlation with numerical models, allowing fast design improvements before prototyping.

   Enhanced SPICE Simulation of InductiveComponent Behavior: Integrating Impedance Measurement and Core Loss Models for Transient Simulations
By Sven FIESSER, Ulf SCHWALBE [View]
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Abstract: This paper presents an enhanced method to model impedance data of inductive components for accurate simulation in transient SPICE simulations by utilizing vector fitting algorithms. These models are extended by a core loss model based on the improved generalized Steinmetz equation (iGSE). Through practical measurements, we demonstrate that the resulting models closely replicate the behavior of real inductors. These results present a more precise approach to simulating inductive components, particularly in scenarios where losses play a crucial role.

   Volume reduction of magnetic components in DC/DC converters for fuel cell vehicles
By Jonas PFEIFFER, Manfred WOHLSTREICHER, Philemon WRENSCH, Michael SCHMIDHUBER [View]
[Download]

Abstract: In power electronic converter systems, the magnetic components are often the bulkiest and heaviest components. This is particularly disadvantageous in automotive applications, where volume, weight and costs are particularly important. Customized core geometries are a promising option to significantly reduce the volume of magnetic components compared to the use of standard core geometries.In this paper, customized magnetic components for an eightfold interleaved boost converter for fuel cell vehicles is presented. The customized core geometries are compared to an equivalent stacked standard core design in terms of enveloping volume and total losses. In addition, further possibilities for improvement in the form of customized coupled inductors that replace the discrete components are shown and discussed.

EPE 2025 - LS4c: Magnetic Components - Inductors and Transformers
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 08: Components linked to Power Electronics > EPE 2025 - LS4c: Magnetic Components - Inductors and Transformers
	[return to parent folder]

	Correlation of measured and simulated inductances in laminated bus bars By Abdelilah GOULMANE, Simon DARIO, Thomas FOUET	[View] [Download]
Abstract: Bus bars are key in the development and improvement of electrical systems that use power converters that are an essential part in smart grid systems. Bus bars, and especially laminated ones, can help reduce inductance and minimize switching losses, thereby enhancing the overall performance of converters. This highlights the critical need to accurately determine the inductance of bus bars, and then optimize their design accordingly. This publication focuses on different way to measure inductance of laminated bus bars and the correlation with simulation. The presented results demonstrate the sensitivity of inductance measurements, primarily influenced by the measurement setup. Well controlled, it is possible to obtain a strong correlation with numerical models, allowing fast design improvements before prototyping.

	Enhanced SPICE Simulation of InductiveComponent Behavior: Integrating Impedance Measurement and Core Loss Models for Transient Simulations By Sven FIESSER, Ulf SCHWALBE	[View] [Download]
Abstract: This paper presents an enhanced method to model impedance data of inductive components for accurate simulation in transient SPICE simulations by utilizing vector fitting algorithms. These models are extended by a core loss model based on the improved generalized Steinmetz equation (iGSE). Through practical measurements, we demonstrate that the resulting models closely replicate the behavior of real inductors. These results present a more precise approach to simulating inductive components, particularly in scenarios where losses play a crucial role.

	Volume reduction of magnetic components in DC/DC converters for fuel cell vehicles By Jonas PFEIFFER, Manfred WOHLSTREICHER, Philemon WRENSCH, Michael SCHMIDHUBER	[View] [Download]
Abstract: In power electronic converter systems, the magnetic components are often the bulkiest and heaviest components. This is particularly disadvantageous in automotive applications, where volume, weight and costs are particularly important. Customized core geometries are a promising option to significantly reduce the volume of magnetic components compared to the use of standard core geometries.In this paper, customized magnetic components for an eightfold interleaved boost converter for fuel cell vehicles is presented. The customized core geometries are compared to an equivalent stacked standard core design in terms of enveloping volume and total losses. In addition, further possibilities for improvement in the form of customized coupled inductors that replace the discrete components are shown and discussed.