EP0334474A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Control apparatus for a fuel cell generating system
Assignee: Fuji Electric Co Ltd
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Filing: 1989-02-09
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Granted: —
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Expires: 2009-02-09
Abstract
Abstract In a hybrid fuel cell generating system, a fuel cell (3) supplies electrical power to a variable load (5) and is provided with back-up power by means of a storage battery (6). The surplus output of the fuel cell (3) is used to recharge the battery (6) under light load conditions. In order to avoid damage to the battery (6) during recharging, the output power (7,8,9,10) and current (4,16,17,18) of the fuel cell are controlled by means of a signal (Ifc) generated by controller (15) in dependence on a comparison of the measured values of battery current (11,12) and voltage (13) with preset values (14) determined in accordance with a predetermined characteristic related to the charge level of the battery as calculated by the controller (15).
Inventors
- 👤 Osamu Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 21:10
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/04; H01M8/04298; H01M8/04313; H01M8/04537; H01M8/04574; H01M8/04597; B; B60; B60L; B60L53/00; B60L53/10; B60L53/11; B60L58/00; B60L58/30; H01M10/00; H01M10/42; H01M10/44; H01M16/00; H01M16/003; H01M16/006; H01M8/04544; H01M8/04567; H01M8/04589; H01M8/04694; H01M8/04746; H01M8/04753; H02; H02J; H02J7/00; H02J7/34; H02J7/35; B60L2210/00; B60L2210/10; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072; Y02T10/72; Y02T90/00; Y02T90/10; Y02T90/12; Y02T90/14; Y02T90/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
210 words
Control apparatus for a hybrid fuel cell generating system arranged to perform electrical power supply to a load by connecting to the output of a fuel cell a storage battery as a back-up power supply, said control apparatus comprising means for controlling the power output of the fuel cell, means for controlling the output current drawn out of the fuel cell, means for detecting the voltage of the storage battery, means for detecting the charge level of the storage battery, and a controller for controlling the power output control means and the output current control means in dependence on a pre-set value of an allowable charging voltage corresponding to the charged level of the storage battery, and in dependence on a target value for the charge level to be maintained, said pre-set allowable charging voltage value and said target charge level value being predetermined based on charging characteristics of the storage battery, means being provided for comparing said values with detected values of the voltage and charge level of the storage battery respectively obtained from said detecting means, the result of the comparison serving to provide a signal on the basis of which said controller is arranged to control the power output control means and the output current control means.
Claim 2
Dependent Claim
210 words
Control apparatus for a hybrid fuel cell generating system arranged to perform electrical power supply to a load by connecting to the output of a fuel cell a storage battery as a back-up power supply, said control apparatus comprising means for controlling the power output of the fuel cell, means for controlling the output current drawn out of the fuel cell, means for detecting the voltage of the storage battery, means for detecting the charge level of the storage battery, and a controller for controlling the power output control means and the output current control means in dependence on a pre-set value of an allowable charging voltage corresponding to the charged level of the storage battery, and in dependence on a target value for the charge level to be maintained, said pre-set allowable charging voltage value and said target charge level value being predetermined based on charging characteristics of the storage battery, means being provided for comparing said values with detected values of the voltage and charge level of the storage battery respectively obtained from said detecting means, the result of the comparison serving to provide a signal on the basis of which said controller is arranged to control the power output control means and the output current control means.
Claim 3
Dependent Claim
18 words
Control apparatus according to claim 1, wherein said output current control means is a DC to DC converter.
Claim 4
Dependent Claim
43 words
Control apparatus according to claim 1 or claim 2, wherein said controller is arranged to supply said signal, dependent on said comparison, to said output power control means arranged to control the supply and combustion of a raw material to the fuel cell.
References Cited (Backward Citations)
No citation records indexed.
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