SINAMICS SM120 Cabinet Modules

• Информационные материалы

  Информационные материалы

  SINAMICS SM120 Cabinet Modules

  Superior Performance for Industrial Power Regeneration

  General description

  The 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 requirements 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.

  Features

  Superior 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 requirements.
  The SINAMICS SM120 CM complies with even the most demanding grid‑code requirements, 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

  Область применения

  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

  Особенности

  • Line-friendly
  • Grid-compliant
  • Island network operation
  • Transformer‑less operation

  Технические данные

  Brief overview
  Type of Module	Function	Power range
  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 equipped 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.