The Open Electrical & Electronic Engineering Journal

2013, 7 : 98-102
Published online 2013 October 18. DOI: 10.2174/1874129001307010098
Publisher ID: TOEEJ-7-98

The Impact of Layer Number on Stray Inductance of DC-link Busbar in Power Converters

Yi-feng Zhu , Zheng Zheng and Qiong-xuan GE
School of Electrical Engineering and Automation, He’nan Polytechnic University, 2001 Century Avenue, Jiaozuo (454003), Henan, P.R. China.

ABSTRACT

In high power converter design, low-inductance busbar connecting DC capacitors and power devices is the main concern to improve the quality of the whole power electronics system. This paper analyzes the impact of layernumber on the stray inductance of busbar taking a subway traction converter as example. The method of partial element equivalent circuit and the Q3D software are used to extract the stray inductance. The simulation and experimental results show that the stray inductance of three-layer busbar is lower than two-layer busbar with other same conditions.

Keywords:

High-power converter, Busbar, Stray inductance.