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

Rapid low-loss voltage balancing system of super capacitor and its control method

A supercapacitor and voltage equalization technology, applied in the direction of protection/regulation hybrid/electric double layer capacitors, control/regulation systems, instruments, etc., can solve the problem of resistive elements affecting circuit equalization effect and safety, affecting circuit efficiency, and parallel resistance consumption Energy and other issues to achieve the effect of improving reliability and safety, increasing transfer channels, and reducing switching losses

Inactive Publication Date: 2013-08-21
SHANGHAI MARITIME UNIVERSITY
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is easy to install and low in cost, its disadvantages are also very obvious. The parallel resistor consumes a lot of energy, which affects the efficiency of the circuit, and the heating problem of the resistive element will also affect the equalization effect and safety of the circuit.

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
  • Rapid low-loss voltage balancing system of super capacitor and its control method
  • Rapid low-loss voltage balancing system of super capacitor and its control method
  • Rapid low-loss voltage balancing system of super capacitor and its control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] based on the following Figure 1 to Figure 9 , specifically explain the preferred embodiment of the present invention.

[0038] Such as figure 1 As shown, the present invention provides a fast and low-loss supercapacitor voltage equalization system, the supercapacitor voltage equalization system includes an energy storage unit 10, a voltage detection unit 20 connected to the energy storage unit 10, and a control unit connected to the voltage detection unit 20 Unit 30, the drive unit 40 connected to the control unit 30, the first layer voltage equalization unit 50 connected to the drive unit 40 and the energy storage unit 10, and the second layer connected to the drive unit 40 and the first layer voltage equalization unit 50 Pressure equalization unit 60.

[0039] Such as figure 2 As shown, the energy storage unit 10 includes a first supercapacitor 11, a second supercapacitor 12 and a third supercapacitor 13 connected in series. The energy storage unit 10 is an elect...

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 relates to a rapid low-loss voltage balancing system of a super capacitor and a control method of the rapid low-loss voltage balancing system. A double-layer capacity voltage balancing circuit is used for performing voltage balancing on an energy storing unit, increasing energy transferring channels and improving balancing speeds and in addition, achieving zero-current on-off of a power switching element through a series resonance subcircuit based on a soft-switching technology and reducing loss in switching. With the voltage balancing circuit, a series connection super capacitor set can achieve voltage balancing in a short time. Reliability and safety of all units which works for a long time can be improved. Owning to the series connection resonance subcircuit, loss of switching of the circuit is little. As the control method can determine a working mode of the voltage balancing circuit, the voltage balancing circuit is little in power consumption in a standby state. The whole voltage balancing system is faster in speed, less in loss and higher in efficiency.

Description

technical field [0001] The invention relates to a fast and low-loss supercapacitor voltage equalization system and a control method thereof. Background technique [0002] Supercapacitor (Super-capacitor) is a new type of energy storage device that uses the interface electric double layer capacitance formed between the electrode and the electrolyte to store energy. Compared with batteries and ordinary electrolytic capacitors, it has the advantages of high power density, fast charge and discharge speed, high efficiency, wide application temperature range, and long cycle life. At present, supercapacitors are widely used in renewable energy power generation systems, hybrid / pure electric vehicles, electric locomotive traction, uninterruptible power supply (UPS) and other fields. The rated voltage of a single supercapacitor is low (generally below 3V), so it needs to be used in series in order to meet the actual working voltage requirements. The difference in capacity of superca...

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): H01G11/14G05F1/46
CPCY02E60/13
Inventor 仇有年姚刚汤天浩许晓彦鹿宇张正矩
Owner SHANGHAI MARITIME UNIVERSITY
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