SINAMICS SM120 CM medium voltage drives are designed for applications with special or complex requirements. All of the harmonized modules and functions in a SINAMICS SM120 CM allow for the realization of numerous product specific solutions tailored to your applications needs. All of our line modules (DC Bus, M2C, and DFE) and our motor side modules (3L NPC and M2C) have been selected due to the proven advantages found in our current portfolio.
The converter SINAMICS SM120 CM integrates our Multi-cell-converter (M2C) technology either as line module, motor module or both.
The M2C topology consists of several low-voltage cells. Switched in series, they generate an output voltage at medium-voltage level.
Onshore Power Supply featuring the SINAMICS SM120 CM
Transformer-less design for ship or local IT grid
4Q regenerating, also reactive power (VAR)
Motor and line-friendly, long in and output cables
Application-specific DC Bus selection
Robust an reliable design
Type of Module
Active Line Module
Supply and regenerative feedback unit to feed the connected motor modules
3.3 … 6.6 kV
6000 … 12500 kVA
Basic Line Module
Diode supply for connected motor modules
12- / 18- / 24- / 36-pulse
5400 … 10800 kW
Motor Module M2C
M2C-Inverter for the connected motor
3.3 … 7.2 kV
6000 … 13700 kVA
Motor Module NPC
3L-NPC-Inverter for the connected motor
3.3 … 4.4 kV
5700 … 7600 kVA
Central braking chopper for temporary braking energy
4900 … 6100 kW
Unit dissipates the power loss from the converter
200 kW power dissipation
Unit controls and monitors the drive
Line and vector control, open loop control / status message / touch panel / bus-interfaces
Overview of released components
Diode Front End (DFE)- Established industry standard
- 12, 18, 24, 36 pulse available
Modular Multilevel Converter (M2C)
- Transfomerless front-end
- Line-friendly without filters
- Sinusoidal input / output voltage
3-Level Neutral Point Clamped (NPC)- Established industry standard
- Low speed and constant torque (for ships, minerals)
Available for more complex applications such as onshore power supply, hydropower generators, wind power generators and grid couplings for medium voltage DC transmission.
Used for shaft generators, on shore power supply and ship propulsion systems like main propulsion, boosters, and thrusters. The SINAMICS SM120 also offers transformer-less configurations at 4.16 kV.
Utilized in numerous complex and technically sophisticated test stands, such as pump or compressor test beds, generators test stands, automotive component testing, wind tunnel blowers, and gas turbine balancing stands.
Utilized in complex mining applications such as downhill ore conveyors, transformer-less ore mills, or gearless mine winders, as well as more standard applications like high pressure grinding mills, crushers, slurry pumps, standard ore mills, and other mining fans and pumps.
Capable of supporting most medium voltage drive system retrofit projects, for applications such as pumps, fans, compressors and propulsion systems.
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