Power adjustment system and control method therefor

一种电力调整、电流的技术，应用在动力系统燃料电池、电池/燃料电池控制装置、电路等方向，能够解决没有公开结构等问题

Active Publication Date: 2018-01-19
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in WO2012 / 077450, as the load device of the device, although a travel motor and the like are exemplified, no specific structure is disclosed.

Method used

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  • Power adjustment system and control method therefor
  • Power adjustment system and control method therefor
  • Power adjustment system and control method therefor

Examples

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Embodiment Construction

[0024] Embodiments of the present invention will be described below with reference to the drawings.

[0025] figure 1 It is a diagram showing the overall configuration of a fuel cell power adjustment system 1 (hereinafter simply referred to as "power adjustment system 1") in one embodiment of the present invention. The power adjustment system 1 of the present invention is used in a vehicle equipped with a high-power battery and driven by a fuel cell. Such as figure 1 As shown, the electric power adjustment system 1 is installed, for example, in an electric vehicle that drives the vehicle by a drive motor 2 . In addition, the power adjustment system 1 may be applied to loads such as devices other than fuel cell vehicles (electric vehicles using fuel cells) as long as they are applied to loads that use fuel cells as a drive source.

[0026] Such as figure 1 As shown, the power adjustment system 1 of this embodiment includes a fuel cell stack 6, a DC / DC converter (fuel cell c...

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PUM

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Abstract

A power adjustment system is provided with: a fuel cell that is connected to a load; a converter for the fuel cell, said converter being connected between the fuel cell and the load and converting theoutput voltage of the fuel cell at a prescribed requested voltage ratio; a battery that is connected to the load in parallel to the fuel cell and is a different power supply source from the fuel cell; an impedance measuring device that measures the impedance of the fuel cell by outputting an AC current between the positive electrode of the fuel cell and an intermediate point and between the intermediate point of the fuel cell and the negative electrode; a current bypass path that bypasses the converter for the fuel cell and links the fuel cell and the load; and a current cut-off unit that isprovided on the current bypass path and electrically cuts off the current bypass path when the impedance of the fuel cell is being measured by the impedance measuring device.

Description

technical field [0001] The present invention relates to a power adjustment system including a fuel cell, an impedance measuring device for measuring the impedance of the fuel cell, a high-voltage battery, and a DC / DC converter, and a control method thereof. Background technique [0002] Among power adjustment systems equipped with fuel cells, there is known a power adjustment system that supplies fuel gas (such as hydrogen) and oxidant gas (such as air) to the fuel cell according to the requirements of the load connected to the fuel cell, thereby enabling The output power of the fuel cell is supplied to the load. [0003] In the power adjustment system as described above, in order to control the operating state of the fuel cell, for example, an impedance measuring device, a controller, etc. output an AC voltage signal and measure the output current of the fuel cell and the AC component of the output voltage. These calculated AC components are calculated to estimate the inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04537H01M8/04858
CPCB60L58/40H01M8/04634H01M8/04649H01M16/006Y02E60/10Y02E60/50Y02T10/70Y02T90/40B60L3/0053B60L2210/10B60Y2200/91B60L50/70H01M8/04082H01M8/04895H01M8/04947H01M2250/20
Inventor 松本充彦
Owner NISSAN MOTOR CO LTD
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