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Two Level – Voltage Source Converter (2L-VSC)<br />
V dc<br />
S 1a S 1b S 1c<br />
a b<br />
M<br />
S 2a<br />
S 2b S 2c<br />
c<br />
reference-, carrier signal<br />
1<br />
0.5<br />
0<br />
-0.5<br />
-1<br />
0 0.005 0.01 0.015 0.02<br />
t [s]<br />
IGBTs / Diodes : 6 / 6<br />
Commutation cells per phase leg : 1<br />
Modulation scheme of 2L-VSC<br />
(f c = 875 Hz, f o = 50 Hz, m = 1.114)<br />
Rated commutation voltage: V dc<br />
(e.g. V ll =2.3kV, V com = V dc,n =3400V → 6500V IGBTs / IGCTs)<br />
Power Electronics Lab<br />
All rights reserved.Prof. Bernet 9/2003-3
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