We are developing a 50 kWh-class flywheel energy storage system as a national project, using a new axial superconducting magnetic bearing (Ax_SMB) technology. The project has started in FY2005 and will continue to FY2007. The Ax_SMB is composed of Fe core and superconducting coil, which are simply torus-shape. It generates strong restoring force in axial direction. It can realize non-contact le...

Mobile devices are increasingly the dominant Internet access technology. Nevertheless, high costs, data caps, and throttling are a source of widespread frustration, and a significant barrier to adoption in emerging markets. This paper presents Flywheel, an HTTP proxy service that extends the life of mobile data plans by compressing responses in-flight between origin servers and client browsers....

This paper presents a unique flywheel-based regenerative energy recovery, storage and release system developed at the author’s laboratory. It can recover and store regenerative energy produced by braking a motion generator with intermittent rotary velocity such as the rotor of a wind turbogenerator subject to intermittent intake wind and the axels of electric and hybrid gas-electric vehicles du...

At present, a lot of passenger cars and light trucks are equipped with the dual mass flywheel, which can decrease non-uniformity indicated engine torque. In bench test, secondary flywheel can’t be fixed because there is no transmission system on test bench. As result, will have radial circumferential movements, may lead to damage flywheel. This paper presents an improved design crafting tool fo...

modeling and simulation of flywheel energy storage system as v/f reference in islanded microgrid

©2012 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION 92 opinion opinion T he invention of the steam engine triggered the industrial revolution. However, the first commercial engines of the early eighteenth century produced only linear movements, parallel to the movement of the piston in the cylinder. They were therefore only suitable for a few limited applications. It was the invention of the crank to...

Output power in a hybrid power system is constant while the input power with variable characteristics that is generated by different sources. Using Hybrid Electrical Energy Storage (HEES) systems, is growing rapidly since there is an obvious need for clean energy. This paper introduces different parts of a HEES system and then proposes HEES systems which employ battery, ultracapacitor and f...