Open AccessDesign and prototyping of a new flywheel energy storage system
Author(s) -
Ghaemi Ehsan,
Mirsalim Mojtaba
Publication year - 2017
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
ISSN - 1751-8679
DOI - 10.1049/iet-epa.2017.0074
Subject(s) - flywheel , flywheel energy storage , rapid prototyping , energy storage , computer science , automotive engineering , engineering , control engineering , mechanical engineering , physics , power (physics) , quantum mechanics
This study presents a new ‘cascaded flywheel energy storage system’ topology. The principles of the proposed structure are presented. Electromechanical behaviour of the system is derived base on the extension of the general formulation of the electric machines. Design considerations and criteria are discussed and a general procedure for designing of such energy storage system is developed. Typical machine is designed and an analogy between it and the conventional one is discussed. Comparison shows significant improvements in energy density and utility requirements of the proposed system in comparison to the conventional structure. Dynamic response of the designed machine is studied in various conditions as the stand‐alone and also as the grid‐connected system. Finally, a typical three‐stage system is designed, prototyped and tested which shows a good agreement between an analytical and experimental analysis.