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

Method for outputting active power by using smoothing permanent-magnet direct-driving wind power generating system of direct-current-side flywheel energy storage unit

A technology of wind power generation system and flywheel energy storage, which is applied in wind power generation, control system, control generator, etc., can solve the problem of wind turbine output active power fluctuation and other problems

Inactive Publication Date: 2013-12-04
CHONGQING UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the output active power of the wind power generating set fluctuates with the change of the wind speed, and provides a method for smoothing the output active power of the permanent magnet direct drive wind power generation system by using the DC side flywheel energy storage unit

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
  • Method for outputting active power by using smoothing permanent-magnet direct-driving wind power generating system of direct-current-side flywheel energy storage unit
  • Method for outputting active power by using smoothing permanent-magnet direct-driving wind power generating system of direct-current-side flywheel energy storage unit
  • Method for outputting active power by using smoothing permanent-magnet direct-driving wind power generating system of direct-current-side flywheel energy storage unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0068] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0069] see figure 1 , figure 2 and Figure 6 , the present invention uses the flywheel energy storage unit on the DC side to smooth the method for outputting active power of the permanent magnet direct drive wind power generation system, and the control objects involved include: voltage Hall sensor 1, permanent magnet synchronous generator 2, current Hall sensor 3, Rotor position sensor 4, abc / dq coordinate transformation module 5, power outer loop control module 6, generator side current inner loop module 7, space vector modulator 8, motor side converter 9, abc / αβ coordinate transformation module 10, voltage Outer loop control module 11, grid side current inner loop control module 12, grid side converter 13, permanent magnet synchronous motor / generator 14, permanent magnet synchronous motor / generator q-axis current setting module 15, energy...

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 discloses a method for outputting active power by using a smoothing permanent-magnet direct-driving wind power generating system of a direct-current-side flywheel energy storage unit. The method comprises the following steps of: controlling a motor-side converter; controlling a grid-side converter; and controlling an energy-storage-unit-side converter. By cooperated control of the motor-side converter, the grid-side converter and the energy-storage-unit-side converter, a wind power generator set can generate relatively-smoothed active output in the situation of change of a wind speed, and operating requirements of frequency modulation and voltage regulation of the system are met. The method has the advantages that: 1, based on the requirement of power smoothing control, maximum wind energy tracking control is realized; and 2, the network-side active power is smoothed, the quality of electric energy is improved, and the grid-connected operating characteristic of the wind power generating system is improved.

Description

technical field [0001] The invention relates to wind power generation technology, in particular to a method for smoothing output active power of a permanent magnet direct-drive wind power generation system by using a DC side flywheel energy storage unit, and belongs to the field of new energy power generation. Background technique [0002] The direct-drive wind power generation system using brushless permanent magnet synchronous generator eliminates brushes, slip rings and gearboxes, thus reducing system maintenance costs and improving system reliability. The permanent magnet synchronous power generation system based on dual PWM converters can realize variable-speed constant-frequency power generation operation and independent control of active and reactive power, with high power generation efficiency, relatively simple structure, and good operational stability. Because wind energy is an unstable energy source, the wind speed has the characteristics of uncontrollability, ina...

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): H02J3/38H02J3/28H02P21/14H02P21/22
CPCY02E10/763Y02E70/30Y02E10/766Y02E10/76
Inventor 姚骏熊倩廖勇陈西寅夏先锋
Owner CHONGQING 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