Efficiency analysis and controller design of a continuous variable planetary transmission for a CAES wind energy system

Dein Shaw, Jyun-Yu Cai and Chien-Ting Liu

Applied Energy, 2012, vol. 100, issue C, 118-126

Abstract: This study proposes a CAES wind energy storage system composed of a windmill, a continuous variable planetary (CVP) transmission, a flywheel, a clutch, a reciprocating compressor, and an air tank. The mode of transformation of wind energy into compressed air in the system is also illustrated, in addition to details on the process of the controller design. The system controller can adjust the gear ratio according to the wind speed (Vwind) and rotational speed of the flywheel (ωflywheel). With a proper controller design to control the gear ratio, the flywheel can rapidly reach a rotational speed that is suitable for compressing the air into a tank. In addition, the windmill can be operated at the most efficient point. Therefore, transformation efficiency of wind energy into compressed air could be improved. After completion of the controller design, the efficiency of the two air compression systems (one system is driven directly by the windmill and another is driven by the flywheel) are compared to determining the target for improving performance in the future.

Keywords: Compressed air storage system; Wind energy; Flywheel; Controller design; Continuously variable planetary transmission (search for similar items in EconPapers)
Date: 2012
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261912004680
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:100:y:2012:i:c:p:118-126

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2012.06.024

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().