DC amorphous inverter

What is an isolated three-level DC-DC converter?

In this study, an isolated three-level DC-DC converter is proposed for high power and high conversion ratio applications such as fuel cells. The proposed system consists of a single phase three-level inverter, a medium frequency transformer and a diode rectifier unit.

What is a high power density inverter?

HIGH POWER DENSITY INVERTERS A. Three phase inverters trade-offs Inverters are used in aircraft systems to convert a portion of the aircraft's DC power into AC. This AC power is used mainly for instruments, radio, radar, lighting, air conditioning, actuation systems and other accessories.

How a high power density inverter is used in aircraft applications?

be used in aircraft applications. The inductor’s geometric parameters, magnetic properties, core material selection, core and copper losses in addition to temperature calculations are taken into account to meet the low losses and high frequency specifications of the considered high power density inverter.

Which core materials are suitable for the inverter based on weight-objective optimization?

The results of a weight-objective optimization are presented showing the optimal efficiency and power density of the inverter for five chosen core materials, namely the silicon steel, ferrite, iron powder, amorphous and nanocrystalline.

What are the problems in inverter design?

One of the main difficulties in an inverter design is having many parameters impacting all aspects of the design. Higher switching frequency reduces the volume of passive elements, but at the same time increases losses, dropping the efficiency. Moreover, it can lead to high junction temperature in the semiconductors.

Why is it important to optimize the inverter power density?

Nevertheless, higher current ripples increase copper and iron losses in the inductor. For this reason, it is important to optimize the whole system in order to reduce total losses in the converter and increase the inverter power density.