Fuel cell system and power supply management method thereof

A fuel cell and power supply circuit technology, applied in fuel cells, fuel cell additives, secondary batteries, etc., can solve the problems of high power generation cost and secondary battery charging energy loss, and achieve the goal of reducing power generation costs and improving power loss. Effect

Inactive Publication Date: 2011-07-20
YOUNG GREEN ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current power generation cost of fuel cells is quite high, so the power control technology needs to be further improved. Through appropriate circuit architecture and power control, the overall power supply efficiency can be improved, and then the cost of power generation can be reduced.
[0003] Among the related patents of fuel cells in the past, Taiwan Patent Publication No. 200743240 discloses a fuel cell system with power management. The two-stage circuit of the "charging unit" instead of directly charging the secondary battery by the charging unit, so the charging energy of the secondary battery will be lost in the above-mentioned internal load power supply circuit.

Method used

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  • Fuel cell system and power supply management method thereof
  • Fuel cell system and power supply management method thereof
  • Fuel cell system and power supply management method thereof

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[0032] 1. (a)→(b)→(c);

[0033] 2. (a)→(c)→(b);

[0034] 3. (b)→(a)→(c);

[0035] 4. (b)→(c)→(a);

[0036] 5. (c)→(a)→(b);

[0037] 6. (c)→(b)→(a).

[0038] To sum up, the embodiments of the present invention have at least one of the following advantages. The fuel cell system of the above embodiments of the present invention has a structure of two internal load power supply circuits and a path selection circuit, so different power sources use different internal The load power supply circuit is used to improve the power loss caused by too many power conversion stages, thereby reducing the power generation cost of the fuel cell.

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Abstract

The invention relates to a fuel cell system, which comprises a power generation part of a fuel cell, a state detector, a charging circuit, a secondary cell, a control unit, a first internal load power supply circuit, a second internal load power supply circuit, a path selection circuit, internal load power supply circuits and external load power supply circuits. The first internal load power supply circuit is coupled with the power generation part of a fuel cell. The charging circuit is coupled with the power generation part of a fuel cell. The secondary cell is coupled between the charging circuit and the second internal load power supply circuit. The path selection circuit can decide whether the first internal load power supply circuit or the second internal load power supply circuit is used for supplying power to the internal load according to first electric power detected by the state detector, of the power generation part of a fuel cell, thereby saving energy consumption.

Description

technical field [0001] The invention relates to a power supply system, and in particular to a fuel cell system and a power management method thereof. Background technique [0002] The development and application of energy has always been an indispensable condition for human life, but the development and application of traditional energy are causing more and more damage to the environment. The use of fuel cell technology to generate energy has the advantages of high efficiency, low noise, and no pollution, and is an energy technology that conforms to the trend of the times. However, the current power generation cost of fuel cells is quite high, so the power control technology needs to be further improved. Through proper circuit architecture and power control, the overall power supply efficiency can be improved, and then the cost of power generation can be reduced. [0003] Among the related patents of fuel cells in the past, Taiwan Patent Publication No. 200743240 discloses ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01M8/04H01M8/00
CPCY02E60/12H01M8/04619H01M10/46H01M16/006Y02E60/50Y02E60/10
Inventor洪国泰张耿智
OwnerYOUNG GREEN ENERGY