Patent EP0755088A2 successfully refreshed from Google Patents.
EP0755088A2
Expired / Lapsed
EP
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Regenerative power system
Assignee: Railway Technical Research Institute
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Filing: 1996-07-17
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Granted: —
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Expires: 2016-07-17
Abstract
Abstract A regenerative-type hybrid power system A regenerative-type hybrid power system (20), according to the present invention, comprises a first car (30) having a load (13) that comprises an electric load for driving; an electric power generation device (40, 4, 5) comprising at least one of electric power supply devices among a first electric power supply device (40) which is provided on the first car to generate electric power, second electric power supply devices (5) which are provided on the ground to generate electric power and transmit and transform the generated power, and third electric power supply devices (4) which are provided on other cars to supply electric power to the outside that is surplus;a regenerative fuel cell (7), for storing the chemical energy by utilizing the electric power that is supplied from the electric power generation device and regenerating the stored chemical energy, which comprises a water electrolysis device (9), a storage device (10) for storing up at least the electrolyzed hydrogen and the oxygen, a fuel cell (11) for generating electricity using the stored hydrogen and oxygen as fuel, and a heat exchanger (8) for the water electrolysis device, the storage device and the fuel cell; a regenerative control device (12) for controlling regeneration of the electric power by the regenerative fuel cell (7) to supplement lack of the electric power that is supplied to the load (13). The hybrid power system of this invention can realize a high speed energy conversion and storage system as well as a high power generation system to maintain high energy weight and volume efficiency, the purpose of this invention, the high speed energy conversion and storage and the high power generation of electricity, can be realized in a form to maintain high energy weight and volume efficiency.
Inventors
- 👤 Yasutsugu Oki
- 👤 Hitoshi Hasegawa
- 👤 Toshikatsu Ito
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 22:03
CPC Classifications
H; H01; H01M; H01M16/00; H01M16/003; H01M16/006; B; B60; B60L; B60L15/00; B60L15/20; B60L15/2009; B60L15/2045; B60L50/00; B60L50/50; B60L50/53; B60L50/60; B60L50/61; B60L50/62; B60L50/70; B60L50/71; B60L53/00; B60L53/50; B60L53/54; B60L58/00; B60L58/30; B60L58/32; B60L58/33; B60L58/34; B60L58/40; B60L7/00; B60L7/10; B60L7/12; B60L7/14; B60L9/00; H01M8/00; H01M8/04; H01M8/04298; H01M8/04694; H01M8/04858; H01M8/04865; H01M8/04925; H01M8/04947; H01M8/04955; H01M8/06; H01M8/0606; H01M8/0656; H01M8/18; H01M8/184; H01M8/186; B60L2200/00; B60L2200/26; H01M8/04007; H01M8/0494; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/70; Y02T10/7072; Y02T10/72; Y02T90/00; Y02T90/10; Y02T90/12; Y02T90/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
250 words
A regenerative-type hybrid power system, comprising: electric power generation and supply means for generating electric power and supplying an electric power system with the electric power; a regenerative fuel cell for storing a chemical energy by utilizing the electric power which is supplied from said electric power generation and supply means and for regenerating the electric power by utilizing the stored chemical energy, comprising: a water electrolysis device which electrolyzes water, a storage device which stores up at least the hydrogen between the electrolyzed hydrogen and oxygen, a fuel cell which uses the hydrogen which is stored up to the storage device and oxygen as fuel and generates electricity, and a heat exchanger which exchanges heat of the water electrolysis device, the storage device, the fuel cell and atmosphere; a load for receiving electric power from said electric power generation and supply means and said regenerative fuel cell; regenerative control means which compares a supply and demand difference between the generated electric power of said electric power generation and supply means and the electric power which said load receives, and when the generated electric power is a supply surplus, operates said water electrolysis device with a surplus power of the generated electric power if necessary and stores up at least the electrolyzed hydrogen, and when the generated electric power is lacking, controls excess and surplus of the electric power, which occurs in said electric power system, by regenerating electric power by said fuel cell with the stored hydrogen and oxygen.
Claim 2
Dependent Claim
225 words
A regenerative-type hybrid power system, comprising: a first car which has a load that comprises an electric load for driving; electric power generation means comprising at least one of electric power supply devices among a first electric power supply device that is provided on said first car and generates electric power, second electric power supply devices which are provided on the ground and generate electric power and transmit and transform the generated power, and third electric power supply devices which are provided on other cars that are different from said first car and supply to the outside electric power that is surplus; a regenerative fuel cell for storing a chemical energy by utilizing the electric power that is supplied from said electric power generation means and for regenerating the stored chemical energy, which comprises a water electrolysis device that electrolyzes water, a storage device which stores up at least the hydrogen between the electrolyzed hydrogen and oxygen, a fuel cell that generates electricity using the hydrogen that is stored up by said storage device and oxygen as fuel, and a heat exchanger that exchanges heat of said water electrolysis device, said storage device, said fuel cell, and atmosphere; regenerative control means for controlling regeneration of electric power by said regenerative fuel cell to supplement lack of the electric power that is supplied to said load.
Claim 3
Dependent Claim
153 words
A regenerative-type hybrid power system according to claim 2, wherein said regenerative control means controls regeneration of the electric power to supplement the lack of the electric power by operating said water electrolysis device and storing up at least the hydrogen between the generated hydrogen and oxygen to said storage device according to demand, if one among the electric power that is supplied from said electric power generation means, the electric power that is regenerated by said electric load for driving, and the sum of both electric power exceeds electric power consumed by said load when electric power is regenerated by said electric load for driving, and operating said fuel cell with the hydrogen stored up and oxygen according to demand after making a predetermined economical decision in electric fee system, when the electric power that is supplied from said electric power generation means falls below the electric power consumed by said load.
Claim 4
Dependent Claim
81 words
A regenerative-type hybrid power system defined in one of claims 1, 2, and 3, wherein said electric power generation means includes at least said second electric power supply device; and the second electric power supply device and said first car comprise said regenerative fuel cells, respectively; and said regenerative control means control regeneration of the electric power that both the fuel cells regenerate, which said second electric power supply device and said first car comprise, by linkage operation according to demand.
Claim 5
Dependent Claim
94 words
A regenerative-type hybrid power system defined in one of claims 1, 2, and 3, wherein said electric power generation means includes at least said second electric power supply device; and the second electric power supply device and said first car comprise said regenerative fuel cells, respectively; and said regenerative control means control regeneration of the electric power that the fuel cells regenerate, which said second electric power supply device and said first car comprise, according to a demand to maintain a maximum efficiency operation of regeneration in both the fuel cells by linkage operation.
Claim 6
Dependent Claim
251 words
A regenerative-type hybrid power system, comprising: a fuel cell which comprises a water electrolyzer which electrolyze water to produce hydrogen and oxygen, and a storage device for storing at least hydrogen produced by the water electrolyzer; a load for driving a car and producing regenerative braking power; a foreign power supply system which is not included in a predetermined area which is determined by a contract between a power supplier and a demand user; a off-board power supply system, such as an overhead contact line, which exists in the predetermined area outside the car; wherein, when the regenerative hybrid system has a economical advantages under the conditions that receiving power from the power supplier has a room enough to supply power in a contract demand between the demand user and the power supplier with high penalty charge in the case of receiving power over the contract demand, and a regenerative braking power has a room enough to supply power over to the extent to which the foreign power supply system can absorb the feedback of the braking energy to the off-board power supply system, the regenerative hybrid system operates said water electrolyzer storing up at least the hydrogen and oxygen to said storage device, on the other hand, when the foreign power except the system falls below the electric power consumed by said load, the system operates fuel cell with hydrogen stored up and oxygen or air, and supplement the lacking power to the load through off board power supply line.
References Cited (Backward Citations)
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