Integrated fuel cell hybrid test platform in electric forklift

Henri Karimäki, Timo Keränen, Jari Ihonen, Heidi Uusalo, Jaana Viitakangas, José Vallet

Research output: Contribution to conferenceConference articleScientific

Abstract

Materials handling vehicles are considered one of the potential early markets for fuel cells. In this application, lifetime and reliability have been identified as key parameters to be maximized. However, typical work cycle of many materials handling and other industrial vehicles, like forklifts, is characterized by heavy and fast variations in power demand. This sort of fast transient operation is not ideal for a fuel cell and hence hybridizing it with different energy storages is preferred. A hybrid power source consisting of PEMFC, ultracapacitors and lead-acid battery has been developed on a large counter-weight forklift. The energy storages were connected directly in parallel without actual power electronics in order to achieve simple structure and avoid conversion losses. In this arrangement, the lead-acid battery SoC and the internal resistance of energy storages directly dictate the load distribution between them. Only high current rated relays and a Schottky-diode are used to control current flow between energy storages and protect the fuel cell stacks.
Original languageEnglish
Publication statusPublished - 2010
MoE publication typeNot Eligible
EventFuel Cells Science & Technology 2010 - Zaragoza, Spain
Duration: 6 Oct 20107 Oct 2010

Conference

ConferenceFuel Cells Science & Technology 2010
CountrySpain
CityZaragoza
Period6/10/107/10/10

Fingerprint

Energy storage
Fuel cells
Lead acid batteries
Materials handling
Electric current control
Proton exchange membrane fuel cells (PEMFC)
Power electronics
Diodes

Keywords

  • PEMFC
  • hybrid
  • experimental
  • forklift

Cite this

Karimäki, H., Keränen, T., Ihonen, J., Uusalo, H., Viitakangas, J., & Vallet, J. (2010). Integrated fuel cell hybrid test platform in electric forklift. Paper presented at Fuel Cells Science & Technology 2010, Zaragoza, Spain.
Karimäki, Henri ; Keränen, Timo ; Ihonen, Jari ; Uusalo, Heidi ; Viitakangas, Jaana ; Vallet, José. / Integrated fuel cell hybrid test platform in electric forklift. Paper presented at Fuel Cells Science & Technology 2010, Zaragoza, Spain.
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Karimäki, H, Keränen, T, Ihonen, J, Uusalo, H, Viitakangas, J & Vallet, J 2010, 'Integrated fuel cell hybrid test platform in electric forklift' Paper presented at Fuel Cells Science & Technology 2010, Zaragoza, Spain, 6/10/10 - 7/10/10, .

Integrated fuel cell hybrid test platform in electric forklift. / Karimäki, Henri; Keränen, Timo; Ihonen, Jari; Uusalo, Heidi; Viitakangas, Jaana; Vallet, José.

2010. Paper presented at Fuel Cells Science & Technology 2010, Zaragoza, Spain.

Research output: Contribution to conferenceConference articleScientific

TY - CONF

T1 - Integrated fuel cell hybrid test platform in electric forklift

AU - Karimäki, Henri

AU - Keränen, Timo

AU - Ihonen, Jari

AU - Uusalo, Heidi

AU - Viitakangas, Jaana

AU - Vallet, José

N1 - Esitelmä saatavissa tekijältä elektronisessa muodossa, 18 p. Project code: 41909 TopDrive

PY - 2010

Y1 - 2010

N2 - Materials handling vehicles are considered one of the potential early markets for fuel cells. In this application, lifetime and reliability have been identified as key parameters to be maximized. However, typical work cycle of many materials handling and other industrial vehicles, like forklifts, is characterized by heavy and fast variations in power demand. This sort of fast transient operation is not ideal for a fuel cell and hence hybridizing it with different energy storages is preferred. A hybrid power source consisting of PEMFC, ultracapacitors and lead-acid battery has been developed on a large counter-weight forklift. The energy storages were connected directly in parallel without actual power electronics in order to achieve simple structure and avoid conversion losses. In this arrangement, the lead-acid battery SoC and the internal resistance of energy storages directly dictate the load distribution between them. Only high current rated relays and a Schottky-diode are used to control current flow between energy storages and protect the fuel cell stacks.

AB - Materials handling vehicles are considered one of the potential early markets for fuel cells. In this application, lifetime and reliability have been identified as key parameters to be maximized. However, typical work cycle of many materials handling and other industrial vehicles, like forklifts, is characterized by heavy and fast variations in power demand. This sort of fast transient operation is not ideal for a fuel cell and hence hybridizing it with different energy storages is preferred. A hybrid power source consisting of PEMFC, ultracapacitors and lead-acid battery has been developed on a large counter-weight forklift. The energy storages were connected directly in parallel without actual power electronics in order to achieve simple structure and avoid conversion losses. In this arrangement, the lead-acid battery SoC and the internal resistance of energy storages directly dictate the load distribution between them. Only high current rated relays and a Schottky-diode are used to control current flow between energy storages and protect the fuel cell stacks.

KW - PEMFC

KW - hybrid

KW - experimental

KW - forklift

M3 - Conference article

ER -

Karimäki H, Keränen T, Ihonen J, Uusalo H, Viitakangas J, Vallet J. Integrated fuel cell hybrid test platform in electric forklift. 2010. Paper presented at Fuel Cells Science & Technology 2010, Zaragoza, Spain.