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Maxwell Ultracaps for Bombardier

January 22, 2012 in Uncategorized by rich  |  No Comments

Ultracapacitors from Maxwell Technologies (NASDAQ:MXWL) have been selected as the electricity storage element for the EnerGstor braking energy recuperation system by Canada’s Bombardier Transportation, Maxwell reports.

Wayside EnerGstor units are fitted with an ultracapacitor array that can store up to 2 kilowatt-hours of electrical energy from a passing railcar or train’s braking energy recuperation system.

Bombardier’s EnerGstor wayside energy storage system uses ultracapacitors from Maxwell Technologies to capture and store potentially wasted braking energy and recycle it back to the system. The arrangement can cut network energy consumption by up to 20%, Bombardier says, ‘providing both economic and environmental benefits.’

Bombardier’s EnerGstor wayside energy storage system uses ultracapacitors from Maxwell Technologies to capture and store potentially wasted braking energy and recycle it back to the system. The arrangement can cut network energy consumption by up to 20%, Bombardier says, ‘providing both economic and environmental benefits.’

“Recuperative braking is accomplished by running the vehicle’s electric motor backwards to stop the vehicle with the motor’s resistance,” Maxwell explains. Motors become generators, converting kinetic energy into electricity, parked in the ultracaps.

“The ultracapacitor-based energy storage unit captures and stores energy that otherwise would be wasted in a conventional, friction-based, braking system,” Maxwell says. “Ultracapacitors also provide extremely long operational life in the demanding public transit environment and function normally at extreme temperatures, contributing to system reliability and reduced operating expenses.”

EnerGstor benefits include a 20% or even 30% reduction in grid power consumption, Maxwell says. EnerGstor reduces brake maintenance and can provide backup power enabling trains to reach a station during grid power failure.

Bombardier’s EnerGstor wayside energy storage system uses ultracapacitors from Maxwell Technologies to capture and store potentially wasted braking energy and recycle it back to the system. The arrangement can cut network energy consumption by up to 20%, Bombardier says, ‘providing both economic and environmental benefits.’

EnerGstor uses ultracapacitors from Maxwell

Bombardier also promotes a catenary-free inductive energy transfer system for trains, called Primove. Primove employs double layer capacitors, Bombardier says.


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