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

Direct-driving wave power-generating and energy-storing device and control method

A technology of wave power generation and energy storage devices, which is applied in the direction of AC network load balancing, etc., can solve problems such as the inability to achieve real-time power fluctuation stabilization, and the inability to meet the capacity and power requirements of wave power generation systems at the same time, and achieve the solution of DC bus power and voltage. Fluctuation, reduced control difficulty, high energy density effect

Active Publication Date: 2013-11-06
TSINGHUA UNIV
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A single energy storage system cannot meet the capacity and power requirements of the wave power generation system at the same time, and cannot achieve real-time stabilization of power fluctuations

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
  • Direct-driving wave power-generating and energy-storing device and control method
  • Direct-driving wave power-generating and energy-storing device and control method
  • Direct-driving wave power-generating and energy-storing device and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] Such as figure 1 As shown, the direct drive wave power generation energy storage device of the present invention includes a direct drive wave generator 1, an AC / DC (alternating current / direct current) converter 2, a DC / AC (alternating current / direct current) converter 3, several A load 4 , two DC / DC converters 5 , 6 , a hybrid energy storage system 7 and a controller 8 , wherein the hybrid energy storage system 7 includes a supercapacitor bank 71 and a battery pack 72 . The mover of the direct-drive wave generator 1 is connected to a buoy floating in the sea to convert the kinetic energy of the waves into low-frequency alternating current and send it to the input end of the AC / DC converter 2, and the AC / DC converter 2 converts the low-frequency alternating current into direct current. The output terminal of the AC / DC converter 2 is connected t...

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 direct-driving wave power-generating and energy-storing device and a control method. The direct-driving wave power-generating and energy-storing device is characterized by comprising a direct-driving wave generator, an AC / DC (Alternating Current or Direct Current) converter, a DC / AC (Direct Current or Alternating Current) converter, a plurality of loads, two DC / DC (Direct Current or Direct Current) converters, a mixed energy storing system and a controller, wherein the mixed energy storing system comprises an ultra-capacitor bank and a storage battery pack; the direct-driving wave generator is used for converting the kinetic energy of waves to a low frequency alternating current and sending to the AC / DC converter; the AC / DC converter is used for converting the low frequency alternating current to a direct current and connect and connected with the input end of the DC / AC converter through a direct current bus; the output end of the DC / AC converter is connected with the loads; the direct current bus is respectively connected with one ends of the two DC / DC converters, the other end of one of the two DC / DC converters is connected with the capacitor bank, and the other end of the other of the two DC / DC converters is connected with the storage battery pack; and the controller is used for controlling the ultra-capacitor bank and the storage battery pack to regulate power flow so as to keep the balance between the output power of the direct-driving wave generator and the power of the loads. The invention can be widely applied to the process of converting the kinetic energy of sea water fluctuation to the electric energy.

Description

technical field [0001] The invention relates to an energy storage device and a control method, in particular to a direct-drive wave power generation energy storage device and a control method for converting the kinetic energy of seawater fluctuations into electric energy. Background technique [0002] Ocean wave power generation converts the kinetic energy of vertical seawater fluctuations into electrical energy. Since the speed and frequency of ocean waves are relatively low, the general ocean wave cycle is from a few seconds to more than ten seconds. Kinetic energy is converted into a form that can drive a rotary motor, which increases the cost and complexity of the system, and adds additional energy loss and maintenance. The direct-drive wave power generation system generally uses a linear generator to directly convert the up and down movement of waves into electrical energy, and its maintenance cycle and cost are relatively small. However, the electric power generated b...

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 Patents(China)
IPC IPC(8): H02J3/32
Inventor 肖曦聂赞相康庆
Owner TSINGHUA UNIV
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