ABB ACS5000, User Manual

Page: 38 / 186

03 POWER ELECTRONICS AND CABINET FEATURES
3BHS799208 E01 REV E ACS5000 WATER-COOLED USER MANUAL 38/186
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.
Figure 3-2 Switching levels
Figure 3-3 Principle of 9-level topology
(1) Volts
(2) Amps
(3) 50 Hz operation point (4) Voltage
(5) Current
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10000 V
5000 V
- 5000 V
- 10000 V
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4 5
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