Maximum efficiency or power tracking of stand-alone small scale compressed air energy storage system
Maximum efficiency or power tracking of stand-alone small scale compressed air energy storage system
This paper is concerned with maximum efficiency or power tracking for pneumatically-driven electric generator of a stand-alone small scale compressed air energy storage system (CAES). In this system, an air motor is used to drive a permanent magnet DC generator, whose output power is controlled by a buck converter supplying a resistive load. The output power of the buck converter is controlled power such that the air motor operates at a speed corresponding to either maximum power or maximum efficiency. The maximum point tracking controller uses a linearised model of the air motor together with integral control action. The analysis and design of the controller is based on a small injected-absorbed current signal-model of the buck converter. The controller was implemented experimentally using a dSPACE system. Test results are presented to validate the design and demonstrate its capabilities.
387-396
Kokaew, V.
c9423a98-81d2-4293-bcc3-891445f3de92
Moshrefi-Torbati, M.
65b351dc-7c2e-4a9a-83a4-df797973913b
Sharkh, S.M.
c8445516-dafe-41c2-b7e8-c21e295e56b9
November 2013
Kokaew, V.
c9423a98-81d2-4293-bcc3-891445f3de92
Moshrefi-Torbati, M.
65b351dc-7c2e-4a9a-83a4-df797973913b
Sharkh, S.M.
c8445516-dafe-41c2-b7e8-c21e295e56b9
Kokaew, V., Moshrefi-Torbati, M. and Sharkh, S.M.
(2013)
Maximum efficiency or power tracking of stand-alone small scale compressed air energy storage system.
Energy Procedia, 42, .
(doi:10.1016/j.egypro.2013.11.039).
Abstract
This paper is concerned with maximum efficiency or power tracking for pneumatically-driven electric generator of a stand-alone small scale compressed air energy storage system (CAES). In this system, an air motor is used to drive a permanent magnet DC generator, whose output power is controlled by a buck converter supplying a resistive load. The output power of the buck converter is controlled power such that the air motor operates at a speed corresponding to either maximum power or maximum efficiency. The maximum point tracking controller uses a linearised model of the air motor together with integral control action. The analysis and design of the controller is based on a small injected-absorbed current signal-model of the buck converter. The controller was implemented experimentally using a dSPACE system. Test results are presented to validate the design and demonstrate its capabilities.
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Published date: November 2013
Organisations:
Mechatronics
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Local EPrints ID: 360177
URI: http://eprints.soton.ac.uk/id/eprint/360177
ISSN: 1876-6102
PURE UUID: 1ea9aa81-18e3-4c72-96c3-e3b5e58ce652
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Date deposited: 28 Nov 2013 13:34
Last modified: 18 Mar 2024 02:40
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