Pinhole detection system of fuel cell
US-2015357660-A1 · Dec 10, 2015 · US
Analysis method, analysis device, and power generation system
US2025286091A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025286091-A1 |
| Application number | US-202519220121-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 28, 2025 |
| Priority date | Dec 15, 2022 |
| Publication date | Sep 11, 2025 |
| Grant date | — |
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- Title
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Abstract
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An analysis method according to the present disclosure includes receiving an output voltage of an inverter that converts direct-current power of a fuel cell device to alternating-current power, receiving information indicating an abnormality in the fuel cell device when an abnormality occurs in the fuel cell device, and analyzing, when power supply from the fuel cell device to a power load via the inverter is stopped abnormally, a cause of the abnormal stoppage on a basis of the output voltage and presence or absence of information indicating an abnormality in the fuel cell device.
First claim
Opening claim text (preview).
What is claimed is: 1 . An analysis method comprising: receiving an output voltage of an inverter that converts direct-current power of a fuel cell device to alternating-current power; receiving information indicating an abnormality in the fuel cell device when an abnormality occurs in the fuel cell device; and analyzing, when power supply from the fuel cell device to a power load via the inverter is stopped abnormally, a cause of the abnormal stoppage on a basis of the output voltage and presence or absence of information indicating an abnormality in the fuel cell device. 2 . An analysis method according to claim 1 , wherein the cause of the abnormal stoppage is determined to be an abnormality in a power system when the output voltage is greater than a set value for the inverter, the cause of the abnormal stoppage is determined to be an abnormality in the fuel cell device when the output voltage is less than or equal to the set value for the inverter and the fuel cell device is abnormal, and the cause of the abnormal stoppage is determined to be an abnormality in the inverter when the output voltage is less than or equal to the set value for the inverter and the fuel cell device is normal. 3 . An analysis device comprising: a communication device that receives an output voltage of an inverter, which converts direct-current power of a fuel cell device to alternating-current power, and information indicating an abnormality in the fuel cell device when an abnormality occurs in the fuel cell device; and a control device that analyzes, when power supply from the fuel cell device to a power load via the inverter is stopped abnormally, a cause of the abnormal stoppage on a basis of the output voltage and presence or absence of information indicating an abnormality in the fuel cell device. 4 . A power generation system comprising: a fuel cell device; and the analysis device according to claim 3 .
Assignees
Inventors
Classifications
of fuel cell stacks · CPC title
of auxiliary devices, e.g. batteries, capacitors · CPC title
of auxiliary devices, e.g. batteries, capacitors · CPC title
- H01M8/04671Primary
of the individual fuel cell · CPC title
Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel · CPC title
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- What does patent US2025286091A1 cover?
- An analysis method according to the present disclosure includes receiving an output voltage of an inverter that converts direct-current power of a fuel cell device to alternating-current power, receiving information indicating an abnormality in the fuel cell device when an abnormality occurs in the fuel cell device, and analyzing, when power supply from the fuel cell device to a power load via …
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04671. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 11 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).