What is the function of the high-voltage box in the energy storage system

What is a high voltage box?

Secondly, the high voltage box carries out the high voltage management in the vehicle, and especially the energy distribution from the high voltage battery to the consumers plus providing the DC charging function at high power charging points with a three-digit kW level of charging power. Thirdly, it powers the traditional 12-V net.

What is a modular high voltage box?

Modular extensions are conceivable, such as a high voltage DC booster, the charging communication, a high voltage heater, and the battery management system. The modular high voltage box saves space, weight and cost, for instance on the housing and cabling levels.

What is a battery energy storage system?

Currently, a battery energy storage system (BESS) plays an important role in residential, commercial and industrial, grid energy storage and management. BESS has various high-voltage system structures. Commercial, industrial, and grid BESS contain several racks that each contain packs in a stack. A residential BESS contains one rack.

Why is a battery management system important?

The main function of a battery management system (BMS) is to monitor cell voltages, pack voltages, and pack current. This is crucial for extending the driving range of electric vehicles (EVs) by ensuring that every single watt-hour stored and retrieved from the cells is optimized. This helps in making the battery packs lower cost with higher energy densities.

How do electric vehicles manage energy flows?

Managing the electric energy flows is a core task in all electrified vehicles. This ranges from different charging options (AC charging and DC fast charging) on to supplying energy to the 12-V DC net from the high voltage net and up to the energy distribution within the DC high voltage net.

Why do we need more wide bandgap ICS in high voltage box electronics?

Wide bandgap materials such as SiC and GaN offer future potential, on the one hand to further reduce the spatial envelope, on the other hand to further increase efficiency which is why the application of more WBG ICs in the high voltage box electronics is already being prepared.