Knorr-Bremse Powertech GmbH

Am Borsigturm 100, 13507 Berlin
Telephone +49 30 297725208
Fax +49 30 297725102

Hall map

Energy Storage Europe 2018 hall map (Hall 8b): stand D07

Fairground map

Energy Storage Europe 2018 fairground map: Hall 8b


Kim Urbanke

Sales Manager

Am Borsigturm 100
13507 Berlin, Germany

+49 30 2977 25 208
+49 151 2920 2912


Our range of products

Product categories

  • 06  Storage Systems
  • 06.01  Stationary Grid-Connected Systems
  • 06.01.02  Storage for Integration into Distribution Networks

Storage for Integration into Distribution Networks

  • 06  Storage Systems
  • 06.02  Off-Grid Systems
  • 06  Storage Systems
  • 06.04  Testing and simulation systems

Testing and simulation systems

  • 08  Components and Materials
  • 08.01  Components


Our products

Product category: Off-Grid Systems

Energy and Storage

Efficient and grid-stable energy conversion from generation to storage
Our PowerTech converters are used to convert the energy from the respective generator, motor or renewable energy sources into electrical energy that can be fed into the grid. In addition, they can also be used for the supply of such energy recovery plants and for grid stability of the particular application.

Key Facts:
Energy conversion from wind- to hydropower
Storage systems from battery solutions to power-to-gas
Converter technology for small and very large capacities
Individually adaptable due to its modular and flexible design
Easy integration into existing systems and configurations
Bi-directional versions
Connection with power compensation is possible

Product Features:
DC/AC applications
Active circuit breakers for Active Front End (AFE) functionality
Highly dynamic control properties
Configurable reactive current characteristics
Scalable modular output stages, individually adaptable
User-friendly interface design incl. service software
Common fieldbus systems (CAN, PROFIBUS, Ethercat etc.) supported, binary interfaces available
Highly dynamic and adjustable reactive current response
Automatic adjustment to grid requirements through intelligent Drive Control Unit

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Product category: Storage for Integration into Distribution Networks, Off-Grid Systems

Power Supply and Grid Compensation

Compensation of voltage and frequency fluctuations in power supply networks
Our PowerTech technology supports industrial consumers of electric energy as well as network operators with intelligent solutions in the field of power line compensation. In stand-alone systems and through connecting renewable energy sources and storage systems to public power supply networks, our converters make a valuable contributions to the clean and intelligent energy of tomorrow.

PowerTech converters for active grid compensation and grid compatibility
Active grid compensation for industrial applications

Block diagram of the PowerTech grid compensation
Active mains compensation to ensure production and quality
IGBT-based mains converter for feeding in a reactive current during brief drops in voltage
Provide reactive power for the grid, measures to support the power system
Active harmonic compensation for best-possible grid quality
Flicker compensation integrated into the power converter
Adjustable cos φ

Grid compatibility (Grid Codes) in the field of renewable energies
Continuous voltage and stable output during voltage drops
 Reactive Current Converter will keep the system online during brief balanced grid faults of up to 15% or during unbalanced grid faults down to 0% of the grid voltage
During an unbalanced short circuit of two phases in the medium voltage range, the converter uses the remaining phase to supply reactive current
The LVRT-Solution ensures that the wind turbine will not disconnect from the grid during a grid breakdown (low voltage ride through - LVRT)
Maintaining generator voltage, thus reducing the strain on mechanical components and ensuring a stable energy output, even during a grid breakdown

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Product category: Testing and simulation systems

Test Rig Applications

Simulation of complete technological processes with very high drive dynamics
Our PowerTech network and drive converters allow high-end test rigs for motors, gearboxes and transformers. For maximum performance, we rely on intelligent power modules, accelerated air and water cooling and compact construction with a minimal component count. The result are power converters with highly dynamic response, accurate control and the lowest possible noise emissions - for example for Formula 1.

At a glance:
For asynchronous and synchronous drives
For a variety of high performance test applications such as trains, transformers and special motors
Individually customized with scalable, modular performance levels
Low-level electromagnetic emissions for sensitive test rig applications
Unmatched infrastructure including full laboratory to pretest multiple test systems prior to commissioning
Over 600 systems in operation worldwide

Technical Features:
 IGBT-based four-quadrant technology
With voltage link and pulsed mains converter
AFE - active front end functionality
Active harmonic compensation for best possible grid quality
Reactive power management with adjustable cos phi
Maximum output frequency of up to 2500 Hz
Maximum IGBT pulse frequency of up to 15 kHz
Excellent field-oriented control properties
Low losses and high immunity to electromagnetic interference
Minimal electromagnetic emissions
Single-phase/multi-phase solutions
Modular, flexible design and construction
Optimised air or water-cooling
Support of common field bus systems and binary interfaces
User-friendly service software and interface design

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About us

Company details

PowerTech is the power converter brand of the global Knorr-Bremse group. Knorr-Bremse is a system supplier mostly to the railway and commercial vehicle industries, with brake systems and products beyond.
PowerTech technology for diverse applications in the area of Industry and Energy has many faces: whether standard optimized frequency converters, special solutions applied according to customer needs or tailored technology concepts through to installation and commissioning. PowerTech converters are used in applications where the user needs a specific form and quality of current and voltage. Therefore our clients operate in a variety of markets.
In Energy Storage we have numerous answers to your demands, just from PowerTech or in cooperation with partners. We are compatible with different technologies from batteries to flywheels. Hereby, we can offer even the most customized systems when it comes to performances above 100 kW. That said, we serve commercial and industrial as well as utility markets. We are looking forward to getting in contact with you!

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Company data

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Number of employees




Area of business
  • Storage systems
  • Components and materials
Target groups
  • Energy sector (representatives from PV, wind, biomass etc.)
  • Manufactures of components from the (regenerative) gas industry
  • Manufacturers of electrolyzers and fuel cells
  • Power plant and supply managements of utility companies
  • Public utility companies
  • Carrier of electricity grids
  • High-performance battery manufacturer
  • Research institutes
  • Universities
  • Manufactures for components for compressors, generators, block heating stations
  • Consulting and services
  • Enterprises
  • Housing societies

Company information as a PDF file