CHAPTER 2 – POWER ELECTRONICS AND CABINET FEATURES
40
2.3.5 INU - Inverter unit
The INU converts the DC voltage to the required AC
motor voltage and frequency.
Like the AFE, the INU is an active 3-phase unit with
the same electrical configuration. The unit is
designed as a self-commutated, 5-level voltage
source inverter. As a result of the multi-level topol-
ogy, the drive produces an optimum number of
switching levels - nine levels, phase to phase.
The resulting waveforms permits the application
of standard motors.
The INU is composed of three identical phase mod-
ules (see
). The phase modules can
be extracted from the cabinet to facilitate mainte-
nance and service on the INU.
—
References
—
2-12 INU - Inverter unit
—
Phase module of phase U2
Phase module of phase V2
Phase module of phase W2
1
2
3
1
2
3
P
P
P
P
P
P
10000 V
5000 V
- 5000 V
- 10000 V
P
P
P
10000 V
5000 V
- 5000 V
- 10000 V
Time
Summary of Contents for ACS2000 AFE 2MVA
Page 8: ...General information on manual and equipment ...
Page 13: ...13 ACS2000 AFE 2MVA UM 3BHS355653 ZAB E01 REV H ...
Page 14: ...Terms abbreviations trademarks ...
Page 19: ...19 ACS2000 AFE 2MVA UM 3BHS355653 ZAB E01 REV H ...
Page 20: ...Important note on main circuit breaker ...
Page 48: ...Chapter 3 Control system 49 Control unit 50 Main components 55 I O interfaces ...
Page 69: ...69 ACS2000 AFE 2MVA UM 3BHS355653 ZAB E01 REV H ...
Page 111: ...111 ACS2000 AFE 2MVA UM 3BHS355653 ZAB E01 REV H ...
Page 118: ...Commissioning check list ...
Page 153: ...153 ACS2000 AFE 2MVA UM 3BHS355653 ZAB E01 REV H ...
Page 180: ......
