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Fly Wheel in Tower or Baseplate

IP.com Disclosure Number: IPCOM000202040D
Original Publication Date: 2010-Dec-02
Included in the Prior Art Database: 2010-Dec-02
Document File: 2 page(s) / 188K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

Wind energy varies in intensity and continuity, from place to place, and from time to time. This results in an inequality of energy supply through the wind turbines. For example, wind turbines have to be shutdown, which means 100% loss of wind energy, in case of a long turbulence or less electric energy can be produced on less windy days. In order to keep a nearly constant amount of energy supply and to guarantee a nearly constant price for turbine-supplied electricity, it is necessary to store energy in reasonable ways to achieve a compensable balance between needed energy and available energy.

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Fly Wheel in Tower or Baseplate

Idea: Dr. Andreas Hohle, DE-Aachen; Dr. Brice Tchemtchoua, DE-Aachen; Cong Nguyen, DE- Aachen; Klaus Ventzke, DE-Aachen; Peter Schneider, DE-Aachen

Wind energy varies in intensity and continuity, from place to place, and from time to time. This results in an inequality of energy supply through the wind turbines. For example, wind turbines have to be shutdown, which means 100% loss of wind energy, in case of a long turbulence or less electric energy can be produced on less windy days. In order to keep a nearly constant amount of energy supply and to guarantee a nearly constant price for turbine-supplied electricity, it is necessary to store energy in reasonable ways to achieve a compensable balance between needed energy and available energy.

Up to now, there are different methods for temporary energy storage using different storage media. One approach is to store energy mechanically, for example by flywheels storing transferred kinetic energy. The use of flywheels is well established and state of the art in the field of transportation systems, such as trains and busses. But also in the wind industry there are increasing research activities to apply this approach of energy storage.

But today wind turbines and storage are separated from each other. This causes high land consumption for turbine foundation plus storage are...