Numerical modeling of DC busbar contacts

Numerical Modeling And Experimental Results Of High Currents Dismountable Contacts

The paper presents an electro-thermal numerical model which can be used for the modelling and optimization of high currents dismountable contacts for dc current. The model is obtained by coupling of the electrokinetic field problem with the thermal field problem. The coupling is carried out by the source term of the differential equation which describes the thermal field. The model allows the c...

Numerical modeling of elastic waves across imperfect contacts

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

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 t...

Numerical modeling of economic uncertainty

Representation and modeling of economic uncertainty is addressed by different modeling methods, namely stochastic variables and probabilities, interval analysis, and fuzzy numbers, in particular triple estimates. Fo-cusing on discounted cash flow analysis numerical results are presented, comparisons are made between alter-native modeling methods, and characteristics of the methods are discussed.

Numerical Method of Computing Impedances in Shielded and Unshielded Three-phase Rectangular Busbar Systems

In this paper, a new numerical method of calculating rectangular busbar impedance is proposed. This method is based on integral equation method and partial inductance theory. In particular, impedances of shielded and unshielded three-phase systems with rectangular phase and neutral busbars, conductive enclosure, and use of the method are described. Results for resistances and reactances for the...