To get up to 20kHz switching frequency , Semikron SKiM ® power modules with integrated three -level inverter architecture . SKiM ® IGBT product portfolio on the market for the photovoltaic and UPS provides optimum efficiency . Compared to the standard two -level solutions to reduce the loss for the three -level inverter SKiM ® at 15 kHz frequency range can be reduced by up to 10% of the loss.
SKiM ® power module integrates the latest IGBT and diode. 600/650V IGBT3 and 1200V IGBT4 have low switching and conduction losses can be applied to maximize conversion efficiency. Using three -level solutions for major advantage lies in its nearly sinusoidal output waveform , harmonics less , reduce the size of the output filter ( which means that you can reduce the cost and reduce the dimensions ) . Compared to the two -level solutions , the total loss is minimized . SKiM the power range of50kW-250kW rated inverter power .
Three -level inverter solution provides the highest efficiency of up to 99%. Thanks to the three-level scheme reduces loss and high thermal conductivity , the size of the radiator is reduced. Meanwhile, thanks to the harmonic component is reduced , a good output waveform and EMI interference, the output size of the filter can be reduced. Using three -level inverter can achieve low cost, light weight, small size and the highest conversion efficiency design.
Modules of different internal design ensures low stray inductance commutation path . This three -level inverter is very important because there are different ways according to the modulation commutation path . The worst case , the switching path of the module has a lower stray inductance of 20nH . Such that for smaller switching current has a higher DC link voltage , which means loss reduced.
SKiM ® technology is based on isolation of crimp -free power module substrate , the thermal resistance can be achieved minimal design without mechanical stress , temperature cycling requirements for high power and ability of the application . SKiM height of only
17mm, is a compact, isolated power modules to
support the compact design of photovoltaic inverters http://www.gridtiepowerinverteronline.com/ and UPS .