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 .
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