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Superior Performance for Industrial Power Regeneration

The SINAMICS SM120 CM (Cabinet Modules) with itsmulti‑level Active Line Module is uniquely suitable for industrialpower regeneration applications and ensures a superior performancewhile feeding energy into the grid. The SINAMICS SM120 CMis the best choice to fulfill the application specific requirementswhich range from the need to meet electric utility’s strictstandards, to react fast in the event of line failures or to createan independent island network, since it provides line‑friendly andgrid‑compliant behavior and enables island network andtransformer‑less operations.

Superior line performance

Due to its integrated Siemens patented M2C topology the driveprovides a sinusoidal voltage wave‑form to the grid. The harmonicsremain significantly below all world‑wide commonly applied utilityrequirements. 
The SINAMICS SM120 CM complies with even the mostdemanding grid‑code requirements, which allows smooth and effectiveintegration into any grid while conventional regenerating drivescause harmonic currents and thus usually call for additional linefilters. This is particularly important for weak and islandnetworks to ensure robust operation.

Transformer‑less System Design

Especially for ship applications (e.g. shaft generators) theSINAMICS SM120 CM provides additional keybenefits. 
Depending on the grid and the drive input voltage, the multi‑levelActive Line Module can also operate directly connected tothe power supply with a line reactor only. Such a transformer‑lesssystem design saves space and weight, reduces cabling and requiresno transformer monitoring. Moreover the system efficiency increasessignificantly.

Single Line diagram of the SINAMICS SM120 CM with atransformer‑less system design

Line-friendly

Grid-compliant

Island network operation

Transformer‑less operation

The Active Line Module of the SINAMICS SM120Cabinet 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

Brief overview

Type of Module

Function

Power range

Drive Characteristics

The SINAMICS SM120 Cabinet Modules system features:

Active Line Module with industry-leading M2C (Modular MultilevelConverter) topology

Motor Module with most common and widely used 3-level NPC,optionally equipped with output reactor allowing cable length up to1000 m

Control Module featured with SINAMICS platform-wide usedcomponents

Braking Module that allows controlled ramp down also in case ofpower supply failure (option)

Recooling Module with redundant pumps

Other modules for additional applications will be available at alater date.