Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fuel cell system and fuel cell system control method

A fuel cell system, fuel cell technology, applied in the direction of fuel cells, battery circuit devices, circuits, etc., can solve problems such as disconnection and system voltage overshoot

Active Publication Date: 2021-11-12
GREE ELECTRIC APPLIANCES INC +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of the present application is to provide a fuel cell system and a fuel cell system control method to solve the problem that the current fuel cell system directly disconnects the voltage output terminal when entering the shutdown procedure, resulting in a voltage overshoot in the system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel cell system and fuel cell system control method
  • Fuel cell system and fuel cell system control method
  • Fuel cell system and fuel cell system control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0043] Because the current fuel cell system directly disconnects the voltage output terminal when it enters the shutdown procedure, resulting in no current flow in the system, the voltage converter cannot perform chopper control, and thus the output voltage is equal to the input voltage, resulting in The overshooting of the voltage further damages the device and shortens the service life of the fuel cell. Therefore, an embodiment of the present application provides a fuel cell system...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a fuel cell system and a fuel cell system control method, and belongs to the technical field of fuel cells. In the application, the system comprises a fuel cell, a voltage converter, a load end, a voltage output end, a first switch and a second switch, and the power value of the load end is smaller than the power value of the voltage output end; and the output end of the fuel cell is connected with the input end of the voltage converter, the output end of the voltage converter is connected with the voltage output end through the first switch, and the load end is connected between the output end of the voltage converter and the first switch through the second switch. Therefore, residual hydrogen in the fuel cell can be consumed by using the load end in the shutdown stage, and meanwhile, voltage overshoot in the system can be avoided.

Description

technical field [0001] The present application relates to the technical field of fuel cells, in particular to a fuel cell system and a control method for the fuel cell system. Background technique [0002] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy, also known as an electrochemical generator. It is the fourth power generation technology after hydropower, thermal power and atomic power. [0003] Due to the soft output characteristics of fuel cells, as the load current increases, the voltage drops and the drop ratio is more than that of ordinary batteries, which makes it difficult for fuel cells to match different types of voltage output terminals. Therefore, fuel cells are generally used together with a voltage converter in practical applications. The fuel cell, voltage converter and voltage output end form a fuel cell system. In this system, the voltage converter can effectively convert the voltage of the fuel ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04858H02J7/00
CPCH01M8/04865H02J7/0063H02J7/00712Y02E60/50
Inventor 倪梓荣黄文英肖彪张威刘智亮
Owner GREE ELECTRIC APPLIANCES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com