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Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator

Starting a free-piston linear engine-generator consists of reciprocating a freely moving piston-magnettranslator assembly between two oppositely placed engine cylinders to initiate combustion. To provide for the reciprocating force, the machine is operated as a brushless linear motor. A starting str...

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Main Authors: S.A., Zulkifli, M.N., Karsiti, A.R.A., Aziz
Format: Conference or Workshop Item
Published: 2008
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utp.edu.my/276/1/paper.pdf
http://www.scopus.com/inward/record.url?eid=2-s2.0-63049128041&partnerID=40&md5=85f217832da7b7db690a267bf07013e3
http://eprints.utp.edu.my/276/
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spelling my.utp.eprints.2762017-01-19T08:26:43Z Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator S.A., Zulkifli M.N., Karsiti A.R.A., Aziz TK Electrical engineering. Electronics Nuclear engineering Starting a free-piston linear engine-generator consists of reciprocating a freely moving piston-magnettranslator assembly between two oppositely placed engine cylinders to initiate combustion. To provide for the reciprocating force, the machine is operated as a brushless linear motor. A starting strategy is proposed which utilizes the air-spring quality of the engine cylinders prior to combustion: by energizing the coils with fixed DC voltage and by open-loop, rectangular commutation of injected current, sufficiently high motor force is produced to reciprocate the piston-magnet assembly in small amplitudes initially. Due to repeated compression-expansion of the engine cylinders and constant application of motoring force in the direction of natural bouncing motion, the translator's amplitude and compression pressure is expected to grow - due to mechanical resonance - to finally reach the required parameters for combustion. This work discusses the electrical aspects of the starting strategy, considers control possibilities, builds a model of the electrical subsystem and presents simulation and validation tests of the integrated model for starting investigation. © 2008 IEEE. 2008 Conference or Workshop Item NonPeerReviewed application/pdf http://eprints.utp.edu.my/276/1/paper.pdf http://www.scopus.com/inward/record.url?eid=2-s2.0-63049128041&partnerID=40&md5=85f217832da7b7db690a267bf07013e3 S.A., Zulkifli and M.N., Karsiti and A.R.A., Aziz (2008) Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator. In: 2008 IEEE 2nd International Power and Energy Conference, PECon 2008, 1 December 2008 through 3 December 2008, Johor Baharu. http://eprints.utp.edu.my/276/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
S.A., Zulkifli
M.N., Karsiti
A.R.A., Aziz
Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator
description Starting a free-piston linear engine-generator consists of reciprocating a freely moving piston-magnettranslator assembly between two oppositely placed engine cylinders to initiate combustion. To provide for the reciprocating force, the machine is operated as a brushless linear motor. A starting strategy is proposed which utilizes the air-spring quality of the engine cylinders prior to combustion: by energizing the coils with fixed DC voltage and by open-loop, rectangular commutation of injected current, sufficiently high motor force is produced to reciprocate the piston-magnet assembly in small amplitudes initially. Due to repeated compression-expansion of the engine cylinders and constant application of motoring force in the direction of natural bouncing motion, the translator's amplitude and compression pressure is expected to grow - due to mechanical resonance - to finally reach the required parameters for combustion. This work discusses the electrical aspects of the starting strategy, considers control possibilities, builds a model of the electrical subsystem and presents simulation and validation tests of the integrated model for starting investigation. © 2008 IEEE.
format Conference or Workshop Item
author S.A., Zulkifli
M.N., Karsiti
A.R.A., Aziz
author_facet S.A., Zulkifli
M.N., Karsiti
A.R.A., Aziz
author_sort S.A., Zulkifli
title Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator
title_short Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator
title_full Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator
title_fullStr Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator
title_full_unstemmed Rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator
title_sort rectangular current commutation and open-loop control for starting of a free-piston linear engine-generator
publishDate 2008
url http://eprints.utp.edu.my/276/1/paper.pdf
http://www.scopus.com/inward/record.url?eid=2-s2.0-63049128041&partnerID=40&md5=85f217832da7b7db690a267bf07013e3
http://eprints.utp.edu.my/276/
_version_ 1738655047987757056
score 13.211869

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