Direct Power and Torque Control of AC/DC/AC Converter-Fed ...
Direct Power and Torque Control of AC/DC/AC Converter-Fed ...
Direct Power and Torque Control of AC/DC/AC Converter-Fed ...
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Appendices<br />
Tab. A. 4. 6. Data <strong>of</strong> the <strong>DC</strong> Motor on Laboratory setup<br />
Nominal power P = 2.7 kW<br />
Nominal voltage<br />
Nominal current<br />
Nominal frequency<br />
Base speed<br />
N<br />
U = 420 V<br />
N<br />
N<br />
I = 8.4 A<br />
f<br />
Ω<br />
SN<br />
mN<br />
= 50 Hz<br />
= 1450 rpm<br />
Tab. A. 4. 7.Data <strong>of</strong> the Supply Line <strong>and</strong> <strong>AC</strong>/<strong>DC</strong>/<strong>AC</strong> <strong>Converter</strong><br />
Line voltage U<br />
L<br />
= 141 V<br />
Line frequency f<br />
L<br />
= 50 Hz<br />
<strong>DC</strong>-link voltage U =560 V<br />
Resistive load<br />
R<br />
<strong>DC</strong><br />
load<br />
= 100 or 150 Ω<br />
<strong>DC</strong>-link capacitor C =470 µF / 47 µF<br />
Tab. A. 4. 8. Date <strong>of</strong> the LCL Input Filter in laboratory setup<br />
Line side inductance L<br />
1<br />
= 590 µH<br />
<strong>Converter</strong> side ind. L = 10 mH<br />
Resistance <strong>of</strong> L<br />
1<br />
R<br />
1=0.093 Ω<br />
Resistance <strong>of</strong> L R = 0.08 Ω<br />
Filter capacitors C<br />
F<br />
= 20 µF<br />
Tab. A. 4. 9.Data <strong>of</strong> the inverter VLT 5005<br />
Nominal output power<br />
S<br />
VLTN<br />
= 5.5 kW<br />
Nominal power on the shaft <strong>of</strong> P<br />
VLTN<br />
= 3 kW<br />
the IM fed by VSI<br />
Nominal voltage<br />
U<br />
LN<br />
= 380 V<br />
Nominal input (line) current I<br />
LVLTN<br />
= 7 A<br />
Nominal output (IM) current I<br />
SVLTN<br />
= 7.2 A<br />
Dead time<br />
T<br />
D<br />
= 2 µs<br />
Efficiency 0.96 1)<br />
1) Measured using 30 m screened motor cables at rated load – 3 kW <strong>and</strong> rated frequency – 3kHz .<br />
Two inverters VLT 5005 have been connected through <strong>DC</strong>-link connectors. The<br />
arisen <strong>DC</strong>-link circuit has been modified as in Fig. A. 4. 6.<br />
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