Loss evaluation of AC filter inductor core on a PWM converter

Shimizu, Toshihisa; Kakazu, Keisuke; Takano, Koushi; Ishii, Hitoshi

doi:10.1109/icpe.2011.5944704

Cited by 12 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These advances have enabled a reduction of volume of magnetic components such as inductors and transformers. However, in general, the temperature rise caused by the power loss is noticeable in small magnetic components [34]. Hence, accurate loss evaluation and loss measurement of inductors and transformers becomes to be an important issue in designing higher power density converters.…”

Section: Chapter 3 Inductor Designmentioning

confidence: 99%

“…In this study, the inductor, L f , is designed using nanocrystalline core since as discussed above, it is an iron based material with a saturation of 1.2T flux density and is well suited for high frequency transformers and gapped inductors. The high frequency core loss for the nanocrystal 500F is lower than some ferrite, even operating at a high flux density [34]. Therefore, its relatively high saturation flux density, combined with its incredible low loss and high permeability through a wide frequency range, makes it useful in many applications like high frequency or broadband transformers, broadband current sensors, high frequency filter chokes (inductors), and pulse transformers [38].…”

Section: Figure 3-1typical Magnetization Curvementioning

confidence: 99%

See 1 more Smart Citation

Optimal switching frequency for aerospace power converter systems

Thavaratnam¹

2021

Preprint

View full text Add to dashboard Cite

Switching frequency is one of the main deciding factors in development of a power converter system for aerospace applications. The filter is one of the major components that significantly contribute to the overall system weight and efficiency. The design of the filter, including inductor and capacitor is determined by the switching frequency. On the other hand, the device switching loss is proportional to the loss, which in turn changes the design of thermal system. Thus selection of optimal switching frequency is essential for power converter systems used in aerospace industry. The objective of this study is to select the optimal switching frequency when the overall converter weight is minimal. In this study, switching frequencies ranging from 9kHz to 20kHz is selected based on current IGBT technology. Proven design algorithm for passive filter is adopted in the optimization. Partial verification for power efficiency is conducted via simulation and experiment results.

show abstract

Section: Chapter 3 Inductor Designmentioning

confidence: 99%

Section: Figure 3-1typical Magnetization Curvementioning

confidence: 99%

Optimal switching frequency for aerospace power converter systems

Thavaratnam¹

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…As practical switching devices and passive components are non-ideal, major amount of power losses is in the conduction and switching losses of the switching network, and the ohmic and magnetic core losses of the filters. Although recent advances in new and emerging materials, device technologies, and network topologies have resulted in reducing the losses of the switching devices and increasing the switching frequency for reducing the filter size, the filter section still occupy considerable space and constitute a major part of the total power loss [4]. The ever-increasing density of power electronic system is straining designers' abilities to squeeze space for the filters without sacrificing performance.…”

Section: Introductionmentioning

confidence: 99%

Power semiconductor filter: Use of series-pass device in switching converters for input filtering

Fan

Yuen

Chung

2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

View full text Add to dashboard Cite

A concept called "Power Semiconductor Filter (PSF)" for performing input filtering in switching converters is proposed. The methodology is based on using a series-pass device (SPD) to control the input current waveform of the converter. The operating point of the SPD is regulated at the boundary between the active and the saturation regions by controlling the input impedance of the converter, so as to minimize the power dissipation in the SPD. The operating principle of the concept is demonstrated on a 48W, 50-80V / 12V buck dc-dc converter. Investigations reveal that the PSF allows a substantial size reduction and gives competitive efficiency, as compared to passive inductor-capacitor filter. The proposed technique makes the input filtering section amenable to monolithic integration. The exploration lays a foundation for further investigation into the use of the PSF concept for other power electronic converter systems.

show abstract

Analytical Method for Compensation Choke Geometry Optimization to Minimize Losses

Kindl

Skala

Frivaldský³

2022

IEEE Access

View full text Add to dashboard Cite

The article presents an analytical method for optimizing the geometry of the magnetic core of a three-phase compensation choke. The method describes the process of identification the fringing magnetic fields and the corresponding magnetic reluctances of the magnetic core, the flux density calculation even in the case of the core supersaturation and the total losses estimation. It shows finding the trade-off between the size/weight of the inductor and the magnetic core with respect to the overall losses and demonstrates their minimization. The mathematical model for the flux's identification is based on a standard iterative calculation using the analogy to electrical circuits but includes a new approach to the calculation of fringing magnetic fields caused by the air gapped magnetic core. The presented method is verified by the finite element method (FEM) using the engineering calculation software ANSYS.

show abstract

Loss evaluation of AC filter inductor core on a PWM converter

Cited by 12 publications

References 5 publications

Optimal switching frequency for aerospace power converter systems

Optimal switching frequency for aerospace power converter systems

Power semiconductor filter: Use of series-pass device in switching converters for input filtering

Analytical Method for Compensation Choke Geometry Optimization to Minimize Losses

Contact Info

Product

Resources

About