Knorr-Bremse Powertech GmbH

Am Borsigturm 100, 13507 Berlin

Telephone +49-30-297725-208


Hall map

Energy Storage Europe 2017 hall map (Hall 8b): stand E30

Fairground map

Energy Storage Europe 2017 fairground map: Hall 8b


Kim Urbanke

Business Development & Sales

+49 30 297725 208


Joachim Günther

Sales & Engineering

+49 30 297725 227


Our range of products

Product categories

  • 01  Mechanical Energy Storage
  • 02  Electrochemical Energy Storage
  • 03  Chemical Energy Storage / Power-to-Gas
  • 04  Electrical Energy Storage
  • 06  Storage Systems
  • 06.01  Stationary Grid-Connected Systems
  • 06.01.02  Storage for Integration into Distribution Networks
  • 06  Storage Systems
  • 06.04  Testing and simulation systems
  • 08  Components and Materials
  • 08.01  Components

Our products

Product category: Mechanical Energy Storage, Electrochemical Energy Storage, Chemical Energy Storage / Power-to-Gas, Electrical Energy Storage, Storage for Integration into Distribution Networks, Off-Grid Systems

Knorr-Bremse PowerTech Converter for Power generation and Energy storage

Efficient and stable energy conversion from power generation to storage
PowerTech converters convert the energy from generators, motors or renewable energy sources into electrical energy to feed into the grid.   These converters are also employed in energy recovery plants and power conditioning for grid stability.

Key Facts:
- Energy conversion for a range of power generation applications from wind- to hydropower
- Storage solutions for battery storage, power-to-gas systems and other storage technologies
- Scalable converter technology from small to very large applications
- Individually adaptable due to the modular and flexible design
- Easily integrated into existing systems and configurations
- Bi-directional power transfer
- Can provide needed power and grid compensation

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

Knorr-Bremse PowerTech Converter for 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

- 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 phi

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Product category: Testing and simulation systems

Knorr-Bremse PowerTech for Test Rig Applications

Knorr-Bremse PowerTech is a specialist in high performance converter technology for high performance test rigs. With over 600 installations worldwide, PowerTech offers unmatched product performance, know how, service experience and testing infrastructure.

PowerTech converters for test rig applications are used for:
- Product development and end of line testing
- Combustion motors, gears and hybrid drive trains
- High voltage transformer testing
- Rail testing of pantographs, propulsion and braking
- Electric motor and generator testing
- Component testing of diverse industries
- Testing of industrial machines, compressors and special motors

Our power converter for stationary and mobile test rig applications - 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
- User-friendly service software and interface design
- Unmatched infrastructure including full laboratory to pretest multiple test systems prior to commissioning
- Over 600 systems in operation worldwide

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Company news




Feb 20, 2017

A reliable partner for the energy storage sector: Knorr-Bremse PowerTech introduces itself at Energy Storage Europe 2017

In the era of the energy transition, the significance of reliable power converters for energy production and storage is growing. Knorr-Bremse PowerTech is pleased to welcome visitors at Energy Storage Europe in Düsseldorf from March 14-16, 2017 in hall 8B to stand E30 – the group stand of the German Energy Storage Association (BVES).

Many in the energy sector agree that electricity production from renewable energy sources alone is not enough to enable a successful energy transition – efficient storage options on an industrial scale are required. With innovative power converters for energy production and storage, Knorr-Bremse PowerTech supports providers and users of storage solutions for energy system power conversion. Following the motto “Converting energy into efficiency,” Knorr-Bremse PowerTech is presenting itself as a reliable partner for converting wind and water power into energy and for battery storage, flywheel accumulators and power-to-gas solutions. Efficiency means assuring both quality and a high volume of energy during the process. And all Knorr-Bremse PowerTech converters comply with strict international directives concerning grid supplies and grid compatibility (grid codes).

Power converters for all environmental conditions

Converters for energy production and energy storage are the key to supplying energy efficiently. These products convert energy from a generator or source of renewable energy into electrical energy, storing it or feeding it into the grid with a high degree of stability. The rugged power converters from Knorr-Bremse PowerTech feature a modular, flexible design and can be built according to customer specifications. Jure Mikolcic, CEO of Knorr-Bremse PowerTech, describes why these converters withstand difficult environmental influences such as strong vibrations, harsh climate conditions and constant voltage losses better than others: “We have a high level of system expertise and lots of experience with train projects – I’m thinking of themes like the correction of voltage drops in supply lines or conversion of stored energy into thrust. This transportation know-how is the basis upon which we developed our own strengths in the field of volatile energy feeding.” PowerTech converters can manage grid disruptions and provide a constant supply of electricity under the most adverse conditions. Alongside the tens of thousands of PowerTech converters in use on rail applications throughout the world, the components provide power and auxiliary voltage to other industries including underground or surface mining, civil engineering, tunnel excavation, oil and gas extraction and chemicals. 

 A system partner’s foresight

What can power converters contribute to storage solutions today and where will they be needed in the future? As a system partner, Knorr-Bremse PowerTech supports its customers’ comprehensive engineering projects from the needs analysis to project supervision. Whether it’s a matter of determining the status quo, developing solutions, discussing technology or comprehensively examining energy efficiency in the context of make-or-buy decisions, Knorr-Bremse PowerTech proves to be an expert partner for industry, the energy sector, grid operators, municipalities and research facilities – ideally in the near future at Energy Storage Europe in Düsseldorf.

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Jan 31, 2017

Compact Technology – High Efficiency: Power converters for energy storage and grid compensation from Knorr-Bremse PowerTech at Energy Storage Europe 2017

Support for intelligent energy management and the market integration of renewable energy: the innovative frequency converters for energy storage and grid compensation from Knorr-Bremse PowerTech. At Energy Storage Europe (March 14-16, 2017 in Düsseldorf), the Berlin company will supply answers to the hot issues in today’s energy market in hall  8B, booth 8BE30.

Converting energy into efficiency: Converters may be a e small component of energy systems but they can have an enormous impact on overall efficiency. They ensure effective energy storage and a stable power supply. The renewable energy market faces the challenges of fluctuating energy production, variable power loads and decentralized energy storage. “Knorr-Bremse PowerTech’s solutions for storage and reactive current compensation boost existing grid capacity. They save money that would otherwise be invested in grid expansion and power distribution. After all, in many cases renewable energy is not produced in the places where the power is used,” said Jure Mikolcic, the CEO of Knorr-Bremse PowerTech, to explain the converters’ significance. “For example, in Germany offshore power needs to be transmitted to the industrial centers in the south. At Energy Storage Europe, we plan to speak with experts from municipalities, energy suppliers, the industry and institutions about their requirements and energy supply strategies for the future.”

Wide range of applications
The energy market is dynamic, which means that products must be engineered for process-related flexibility. Together with expert partners, Knorr-Bremse PowerTech developss integrated customer solutions that go far beyond the power converter itself. The wide range includes complete storage systems with a variety of technologies, grid connection services and container buildings, as well as integrated grid compensation systems. Power converters for energy production and storage, and thosefor power supply and grid compensation, continue to be the company’s key products. Power converters from Knorr-Bremse PowerTech are designed for high performance in wind and water power plants, as well as in industrial storage systems. They serve a variety of energy storage technologies: battery storage, flywheels, power-to-gas and other pioneering developments. 

Modular frequency converters
With its high technical level, Knorr-Bremse PowerTech fulfills customer expectations for reliability, affordability and environmentally friendly energy solutions. The company’s converters feature a modular, flexible design that makes them relevant for both individual projects and small series. They fulfill customer-specific requirements in terms of technical and local area of application, which enables more scalabilty  than standardized products. Theese are easy to integrate into existing energy solutions, and all Knorr-Bremse PowerTech frequency converters comply with the strict international directives for grid supply and grid compatibility (grid codes). 

Efficient energy storage
PowerTech converters for energy production and storage have one main task: to convert energy from generators, motors or renewable energy sources into electric power that can be fed into the grid. Here, “efficiency” means ensuring as high a level of quality and power volume as possible during the process. Knorr-Bremse PowerTech converter technology is dimensioned for medium and very high power values, supplying energy production plants and ensuring grid stability for customer applications. The frequency converters for energy storage are available in bidirectional design to enable connection to grid compensation as part of integrated overall energy concepts.

Reliable energy supply
Whether for off-grid systems or connecting renewable energy and storage systems to public grids, PowerTech converters for power production and grid compensation make valuable contributions. In this case, “efficiency” means assuring the stability of the energy supply at all times under the nominal conditions. For processes with alternating reactive power or harmonics, converters dynamically ensure reliable compensation. This function is used to regulate poor grid quality and its negative impact on customer production processes and connected private or industrial loads. It assures that industrial energy supply plants or renewable energy plants such as wind turbines operate reliably.

Driving future technologies together
Power-to-gas plants are one area will be in focus at Energy Storage Europe. These use electrolysis to convert electricity from renewable sources into hydrogen, which can be used to fuel compatible industrial processes or fed into the existing gas pipeline system, turning it into a long-term storage medium. The stored gas can be used at a later point in time to produce power for loads. Power converters from Knorr-Bremse PowerTech provide the required voltage for electrolysis.  And after electrolysis, they keep reactive current to a minimum and ensures the optimum power factor. “The extent to which process efficiency has progressed – this is what we want to discuss with the accredited visitors at E-world,” added Jure Mikolcic.

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About us

Company details

Knorr-Bremse PowerTech is the combination of leading power supply companies under the umbrella of the Knorr-Bremse Group. More than 500 employees at five sites on four continents work together to pioneer solutions for energy conversion. The Knorr-Bremse PowerTech portfolio includes converter products and electronic equipment for a broad spectrum of rail vehicles as well as energy production, storage, industrial applications and high end dynamic test rig applications.

At E-World 2017 Knorr-Bremse PowerTech offers a broad portfolio of energy supply systems for intelligent energy management. This includes power converters for power generation, renewable energies, industrial storage systems from battery solutions to power-to-gas, power supply and grid compensation/ regulation.

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Company data

Number of employees




Target groups
  • Utility Companies, Public Utilities, Energy Industry
  • Network Operators, Transmission System Operators (TSO), Distribution System Operators (DSO)
  • Energy Storage and Systems, Manufacturers and Suppliers
  • Industry, Large Energy Consumers, Business, Hotels and Resorts
  • Science, Research and Development