Siemens SINAMICS DCM - Table of Contents

12-pulse applications
Compact User Manual, 09/2015, A5E34871844H
5
Table of contents
1 Instructions ............................................................................................................................................. 7
2 Area of application .................................................................................................................................. 9
3 12-pulse parallel connection .................................................................................................................. 11
3.1 Topologies .............................................................................................................................. 11
3.2 Configuration ........................................................................................................................... 13
3.2.1 Power increase with parallel connection................................................................................. 14
3.2.1.1 Parallel connection of additional SINAMICS DCM devices in 6-pulse operation ................... 14
3.2.1.2 Parallel connection of additional SINAMICS DCM units in 12-pulse operation ...................... 15
3.2.2 Prerequisites for the device .................................................................................................... 16
3.2.3 Dimensioning of the converter transformer............................................................................. 17
3.2.4 Dimensioning of the smoothing reactors ................................................................................ 19
3.2.5 Selection for overvoltage protection ....................................................................................... 20
3.2.6 Insulation monitoring ............................................................................................................... 21
3.3 Commissioning ....................................................................................................................... 21
3.3.1 Specifying the operating mode ............................................................................................... 22
3.3.2 Additional parameter settings ................................................................................................. 23
3.3.3 Carrying out commissioning ................................................................................................... 24
3.3.4 Optimization runs .................................................................................................................... 24
3.3.4.1 Optimization for 2 individual reactors ...................................................................................... 25
3.3.4.2 Optimization for an interphase transformer ............................................................................ 26
4 12-pulse series connection .................................................................................................................... 27
4.1 Topologies .............................................................................................................................. 27
4.1.1 12-pulse series connection of two SINAMICS DCMs ............................................................. 27
4.1.2 12-pulse series connection: controlled converter + uncontrolled converter ........................... 29
4.2 Configuration ........................................................................................................................... 30
4.2.1 Power increase with parallel connection................................................................................. 30
4.2.2 Prerequisites for the device .................................................................................................... 31
4.2.3 Dimensioning of the converter transformer............................................................................. 33
4.2.4 Voltage limits ........................................................................................................................... 34
4.2.5 Selection for overvoltage protection ....................................................................................... 36
4.2.6 Insulation monitoring ............................................................................................................... 37
4.3 Commissioning ....................................................................................................................... 37
4.3.1 Additional parameter settings ................................................................................................. 37
4.3.2 Carrying out commissioning ................................................................................................... 40
4.3.3 Optimization runs .................................................................................................................... 41
5 Switchover of the power unit topology - option S50 ................................................................................ 43
Index..................................................................................................................................................... 47