ABB ACS5000 User Manual page 38
Water-cooled
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VSI-MF
The VSI design employs DC-link capacitors and provides a switched
voltage waveform. As a result of the multilevel topology, the drive
produces an optimum number of switching levels - 9 levels, phase to
phase. The resulting output waveform permits the application of standard
motors without decreasing the reliability and efficiency of the motor.
10000 V
5000 V
2
1
- 5000 V
- 10000 V
15000
10000
5000
1
0
-5000
-10000
-15000
(1) Volts
(2) Amps
(3) 50 Hz operation point
3BHS799208 E01 REV E
5
4
3
Figure 3-2 Switching levels
3
4
Figure 3-3 Principle of 9-level topology
ACS5000 WATER-COOLED USER MANUAL
03 POWER ELECTRONICS AND CABINET FEATURES
6
7
8
9
5
(4) Voltage
(5) Current
2000
1500
1000
500
2
0
-500
-1000
-1500
-2000
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