Improvements in energy storage pfc

Does a 3-phase PFC reduce power loss?

A 3-phase PFC design using SiC MOSFETs shows a 66% reduction in power loss compared to an IGBT-based design. This efficiency improvement provides designers room to reduce the volume of their PFC designs if delivering the same power, or increase power in a design of the same volume.

How can a charging system improve efficiency and unity power factor (PF)?

To make the transition from IGBT to SiC more effective, charging systems must make use of the latest technology to attain the highest possible efficiencies and unity power factor (PF) in managing and supplying the massive increase in load.

What is Power Factor Correction (PFC)?

Power Factor Correction (PFC) is a technique used in electrical power supplies to improve the power factor of the input current. Power Factor Correction stages have been standard in electrical equipment since the European Union established limits on harmonic currents. Power supplies with an input power of 75 W or greater must conform with EN61000-3-2.

Are wide-bandgap power devices changing the way PFCs are implemented?

The introduction of wide-bandgap power devices, such as silicon carbide (SiC), is changing the way Power Factor Correction (PFC) circuits are implemented. Wide-bandgap technologies open up a range of new possibilities for the designers of power converters.

Why do energy storage systems need a boost converter?

The DC/DC conversion section of an energy storage system often contains a boost converter which can greatly benefit from SiC technology, particularly with higher efficiencies and power densities.

Which PFC converter is best for battery charging?

The Toshiba 3-phase, 400 V PFC reference design is ideal for use with bidirectional DC-DC converters in battery charging applications with high efficiency. It generates a 750 V DC link output and achieves a conversion efficiency of 97% and a power factor of 0.99 or better.