Optimization of Laminated Busbar for Three-Level NPC Topology Using SiC Module

Xie, Yiting; Zhu, Hongkeng; Li, Bingyang; Wei, Jiwen; Wang, Kangping; Yang, Xu; Wang, Laili

doi:10.1109/ipemc-ecceasia48364.2020.9367788

Cited by 2 publications

(2 citation statements)

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“…Therefore, the relationship between the voltage, current and stray inductance on the bus can be expressed as: Among them, v s1 , v s2 , v s3 , v s4 , v s5 and v s6 respectively represent the voltage between each connection point of the busbar. Combining Formulas ( 6) and (7), the relationship between voltage, current and stray inductance on the busbar can be simplified as:…”

Section: Relationship Between Switch Voltage Stress and Stray Inducta...mentioning

confidence: 99%

“…With the development of power electronic technology and semiconductor devices, large capacity, integration, high frequency and high power density have gradually become the development trends of power electronic converters [1][2][3]. Large-capacity converters are widely used in energy storage and grid connection [4], electric vehicles [5,6], solid-state transformers [7], high-speed rail [8] and other occasions.…”

Section: Introductionmentioning

confidence: 99%

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Optimized Design of Laminated Busbar for Large-Capacity Back-to-Back Converters

Wang

2022

Energies

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As a key component of a large-capacity converter, the laminated busbar can improve the reliability, integration and power density of the converter and has great advantages in reducing the parasitic inductance of the switching loop. The laminated busbar suitable for a high-capacity back-to-back converter has a complex structure, and couple with each side converter. It has been challenging to optimize the equivalent inductance by using the traditional single-converter busbar design method. In this paper, the coupling inductance model of the back-to-back converter is established, and the relationship between the voltage stress of the switch tube and the stray inductance is analyzed in detail. Based on this, the design principle of the laminated busbar is proposed, and an optimized design structure of the laminated busbar suitable for the large-capacity back-to-back converter is given. Finally, the results were effectively verified by simulation analysis and a 180 kW integrated intermediate frequency auxiliary power converter.

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Section: Relationship Between Switch Voltage Stress and Stray Inducta...mentioning

confidence: 99%