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The Free Piston Linear Generator - Development of an Innovative, Compact, Highly Efficient Range Extender Module

Kock, Florian und Haag, Johannes und Friedrich, Horst E. (2013) The Free Piston Linear Generator - Development of an Innovative, Compact, Highly Efficient Range Extender Module. SAE World Congress 2013, 16.-18. Apr. 2013, Detroit, Michigan, USA. doi: 10.4271/2013-01-1727.

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Kurzfassung

The present paper introduces the Free Piston Linear Generator (FPLG) - a compact electricity generation unit, which is being developed at the German Aerospace Center (DLR). It is designed as a free-piston combustion engine with integrated linear generator. This combination allows for highly efficient conversion of the chemical energy stored in a fuel to electrical energy. By combining a two stroke combustion chamber, a linear alternator and an adjustable gas spring the engine design results in a compact package. In comparison to conventional combustion engines, additional degrees of freedom are available for controlling the combustion process. In this context efficiency advantages are expected due to the missing mechanical link to a crank which leads to flexibility in terms of stroke and compression ratio. Applied as a range-extender-unit, the system provides additional electric energy to electric vehicles in case of discharged batteries. In addition to this automotive application, the FPLG can be used as an auxiliary power unit for example in aircrafts as well as in decentralized combined heat and power plants (CHP). A step-by-step development strategy leading to the first overall FPLG system has been pursued. In the past years, the DLR has developed and experimentally verified several demonstrator prototypes for all necessary subsystems. Development systems comprising of several of the subsystems and (in some cases) of an auxiliary hydraulic actuator have been investigated. Free piston specific challenges have to be addressed, e.g. increased requirements concerning steadiness of the combustion process. In addition to the hardware development, active control of piston motion is a major technological challenge. Model based algorithms for this purpose have been developed and implemented on a real time system. Applied to one of the development systems, their performance is evaluated in experiments.

elib-URL des Eintrags:https://elib.dlr.de/82497/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:The Free Piston Linear Generator - Development of an Innovative, Compact, Highly Efficient Range Extender Module
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Kock, Florianflorian.kock (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Haag, Johannesjohannes.haag (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Friedrich, Horst E.horst.friedrich (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:18 April 2013
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
DOI:10.4271/2013-01-1727
Status:veröffentlicht
Stichwörter:Freikolbenlineargenerator, Free Piston Linear Generator, FKLG, Entwicklungsmethodik, Proof of Concept, Konzeptnachweis, Range-Extender, Range Extender
Veranstaltungstitel:SAE World Congress 2013
Veranstaltungsort:Detroit, Michigan, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:16.-18. Apr. 2013
Veranstalter :SAE International
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Bodengebundener Verkehr (alt)
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V BF - Bodengebundene Fahrzeuge
DLR - Teilgebiet (Projekt, Vorhaben):V - Fahrzeugenergiesysteme (alt)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Fahrzeugkonzepte > Alternative Energiewandler
Hinterlegt von: Kock, Florian
Hinterlegt am:25 Jun 2013 14:57
Letzte Änderung:25 Jul 2023 08:27

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