Solutions for a sustainable Rail and Urban Electrification.
A complete line of compact and innovative Converters for the transport industry.
FRIEM provides a complete system to power railways, trams and undergrounds including traction converter using diodes, thyristors and IGBT, and energy recovery converters.
The complete package for traction service includes:
- MV switchgear
- Traction Converter Transformer
- Power Converter (AC/DC – DC/AC)
- DC Isolators
- Negative Cubicles/Voltage Limiting Devices
- Disconnectors Cubicles
- Feeders Cubicles
- Outdoor Disconnecting Unit
- Energy Dissipation Converter
- Energy Storage Converter
- Energy Recovery Converter
FRIEM offers the most reliable, flexible and cost-effective solution.
The converters provide an extremely high level of service continuity and are fully complying with IEC or ANSI/IEEE and with the most severe standards. Low losses, low operating temperatures, reduced maintenance and noise are granted by the specific design of the Power Section.
Being energy intensive and with a continuously growing demand, the transport industry is continuously looking for technologies and solutions to answer to new needs, such as maximizing energy efficiency. As a natural consequence of its experience in converters for traction and for renewable energy applications, FRIEM has developed a complete line of solutions to manage Trains Braking Energy. The system allows energy to be recovered from braking trains and integrates energy supply, energy recovery and energy storage converters and helps to achieve the reduction of energy consumption, beyond allowing to support local grid services as frequency regulation, peak shaving or load shedding.
With an output voltage up to 3300V DC and DC output current up to 6000A, FRIEM rectifiers have the highest levels of performances, reliability and customization thanks to a robust structure, N-1 semiconductors redundancy, control system self-diagnostic and long operation life achieved with low operation temperature.
The ED-Con is integrated in the traction systems to dissipate the energy during the vehicle braking. Together with the
associated resistor banks in traction substations, instead of on-board resistors, it reduces the vehicle weight, the energy consumption and solves the problem of heat in the tunnels.
The ES-Con is a converter that, in the system, has the task of storing and reusing the energy coming from the vehicle braking. Its use helps to achieve up to a 30% reduction of total energy consumption and allows to support local grid services as frequency regulation, peak shaving or load shedding.
The ER-Con is a DC/AC power converter that allows to recover the kinetic energy of the vehicles during the braking phase. The recovery takes place transferring energy from the DC line to the AC grid. Such a system can reduce the energy
consumption of a traction line up to the 30 per cent.