National Grid, UK is currently under the process of replacing the conventional high impedance (HiZ) busbar protection systems in their substations with modern low impedance (LI) numeric busbar protection schemes. They are also planning to deploy the same schemes in their new substations and substation extensions. This calls for an extensive changeover from the conventional operation, protection...

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...

Ideally, future photovoltaic modules show higher power output without increasing costs during cell production or module interconnection. Today significant losses occur during stringing the cells in a module by using standard 3busbar technology. In this paper an elegant approach for a front side design is discussed by using more busbars than the widely used 3-busbar design for the solar cell fro...

Electromagnetic forces on three-phase five-wire (3P5W) busbar system is investigated under three-phase shortcircuits current. The conductor busbar placed in compact galvanized steel enclosure is in the rectangular shape. Transient analysis from Opera-2D is carried out to develop the model of three-phase shortcircuits current in the system. The result of the simulation is compared with the calcu...

Busbar distribution system is used as a modular infrastructure to carry electrical energy in low voltage grid. Due to the widespread usage in industrial areas, the power line communication possibilities should be investigated in terms of smart grid concept. This paper addresses modeling of the busbar distribution system as a transmission line and gives some suggestions on the link performance f...

IEC61850 communication standard for digital substation automation creates a new way to think about conventional protection scheme and configuration of substation. The presence of communication link in process bus makes a revolutionary change for future digital substation. This paper discusses briefly about process bus architecture and presents a new approach of thinking in busbar structure to m...

This paper presented the Minimal Radial Basis Function Network (MRBFN) approach busbar protection. The Optical Current Transducer (OCT) is used to solve the magnetic saturation so as to improve the reliability of the system. Performance of this model is compared with Feed Forward Back Propagation Neural Network (FFBP). The proposed model is more accurate in prediction with few numbers of hidden...

The demand for low-priced solar cells with higher efficiencies becomes more necessary to reach grid parity. An optimized solar cell design which uses the same equipment as state of the art solar cells could be easily implemented into solar industry. In this paper an approach for a front side design is discussed, using more busbars than the widely used three busbar design for the solar cell fron...

-In radial distribution network with no discontinuities in feeders’ impedances the shape of traveling wave induced by an SLG fault inception will be modeled by multiple refractions and reflections from busbar, fault and loads. The initial propagation zone presents a rigorous polarity disposition of residual currents, with sound residuals having the same polarity. We can determine the minimal sa...

The multi-busbar solar cell concept using a multitude of wires instead of few busbars is a promising candidate for large scale industrial application for several reasons: it can be combined with the probably upcoming dielectrically passivated back side (PERC) and bifacial concepts, uses less silver and allows for smaller fill factor losses when embedded in a module. However, the electrical char...