Power electronics from Medcom for the Impuls
The new Impuls 36Weh from the Polish vehicle manufacturer Newag SA is a threecar articulated trainset that can be driven both electrically – with pantograph under catenary – and with diesel.
This means that the diesel-electric hybrid can also run on sections of line without overhead lines. The multiple unit has a capacity of approx. 330 passengers and is designed for a speed of up to 160 kilometres per hour. Poland’s first hybrid train has been equipped with traction inverters, auxiliary converters, battery chargers, a train control and monitoring system (TCMS) and low-voltage distributors from Medcom Sp. z o.o. in Warsaw, Poland.
The modern drive system consists of two traction housings to control the operation of the asynchronous traction motors, each with a power output of 400 kilowatts, and for generating the voltage to supply the vehicle’s onboard systems. Each housing contains the FT-800-3000 traction inverter, the PSM-82 auxiliary converter and a Medcom converter cooling system Medcom has thus developed a modern traction system that achieves high performance and reliability parameters. The braking energy can be recuperated into the overhead line, thus saving energy. Together with the developed vehicle control system, the overall solution contributes to a lower energy consumption and ultimately to lower vehicle operating costs.
Medcom has the technology to offer completely emission-free and environmentallyfriendly public transport vehicles in Poland, said Piotr Wroński, Member of the Board of Directors at Medcom. The new Impuls is also the first major step towards the creation of an electric-hydrogen hybrid train. Thanks to the hydrogen fuel cell propulsion system, trolleybuses in Riga can already cover a distance of up to 100 kilometres without a power supply network; a similar solution is also used in the Solaris Urbino 12 hydrogen bus.
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