Superior Performance for Industrial Power Regeneration
General descriptionThe SINAMICS SM120 CM (Cabinet Modules) with its multi‑level Active Line Module is uniquely suitable for industrial power regeneration applications and ensures a superior performance while feeding energy into the grid. The SINAMICS SM120 CM is the best choice to fulfill the application specific re which range from the need to meet electric utility’s strict standards, to react fast in the event of line failures or to create an independent island network, since it provides line‑friendly and grid‑compliant behavior and enables island network and transformer‑less operations.
FeaturesSuperior line performance
Due to its integrated Siemens patented M2C topology the drive provides a sinusoidal voltage wave‑form to the grid. The harmonics remain significantly below all world‑wide commonly applied utility re.
The SINAMICS SM120 CM complies with even the most demanding grid‑code re, which allows smooth and effective integration into any grid while conventional regenerating drives cause harmonic currents and thus usually call for additional line filters. This is particularly important for weak and island networks to ensure robust operation.
Transformer‑less System Design
Especially for ship applications (e.g. shaft generators) the SINAMICS SM120 CM provides additional key benefits.
Depending on the grid and the drive input voltage, the multi‑level Active Line Module can also operate directly connected to the power supply with a line reactor only. Such a transformer‑less system design saves space and weight, reduces cabling and requires no transformer monitoring. Moreover the system efficiency increases significantly.
Single Line diagram of the SINAMICS SM120 CM with a transformer‑less system design
优势
Line-friendly
Grid-compliant
Island network operation
Transformer‑less operation
应用
The Active Line Module of the SINAMICS SM120 Cabinet Module (CM) with its Modular Multilevel Converter (M2C) is ideal for applications such as:
Shaft generator/boosters
Generators in hydro power stations
Test bench drives
Ore conveyors
技术规范
Active Line Module | Supply and regenerative feedback unit to feed the connected motor modules | 4.16 kV: 7900 kVA |
Motor Module | Inverter for the connected motor | 4.16 kV: 7200 kVA |
Braking Module | Central brake chopper as cost effective alternative to the active line modules when regenerative energy occurs | 4.16 kV: 6400 kW |
Recooling Module | Unit dissipates the power loss from the converter | 200 kW power losses |
Control Module | Unit controls and monitors the drive | For one motor axis with one control unit |
Drive Characteristics
The SINAMICS SM120 Cabinet Modules system features:
Active Line Module with industry-leading M2C (Modular Multilevel Converter) topology
Motor Module with most common and widely used 3-level NPC, optionally e with output reactor allowing cable length up to 1000 m
Control Module featured with SINAMICS platform-wide used components
Braking Module that allows controlled ramp down also in case of power supply failure (option)
Recooling Module with redundant pumps
Other modules for additional applications will be available at a later date.