Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A method of permanent magnet direct drive wind power generation system participating in grid frequency regulation

A technology for wind power generation system and grid frequency, applied in AC network load balancing, single grid parallel feeding arrangement, reducing/preventing power oscillation, etc., can solve the uncertain mathematical model of the grid, limit applications, and it is difficult to accurately obtain frequency adjustment instructions Signal and other issues

Inactive Publication Date: 2016-09-07
CHONGQING UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the uncertainty of wind speed, it is difficult for this method to accurately obtain the frequency adjustment command signal obtained through wind speed calculation, thus limiting its application in practical systems.
[0008] In the actual application of engineering, considering that there are many factors causing frequency fluctuations, and the mathematical model of the power grid is uncertain

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
  • A method of permanent magnet direct drive wind power generation system participating in grid frequency regulation
  • A method of permanent magnet direct drive wind power generation system participating in grid frequency regulation
  • A method of permanent magnet direct drive wind power generation system participating in grid frequency regulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0059] see figure 1 and figure 2 , the method for the permanent magnet direct drive wind power generation system of the present invention to participate in grid frequency regulation, the objects involved mainly include: voltage Hall sensor 1, current Hall sensor 2, rotor position sensor 3, abc / dq coordinate transformation module 4, space Vector modulator 5, abc / αβ coordinate transformation module 6, αβ / dq coordinate transformation module 7, grid frequency detection module 8, permanent magnet synchronous motor / generator 9, energy storage unit control parameter setting module 10, permanent magnet synchronous motor / Generator q-axis current given module 11 , energy storage unit current inner loop control module 12 , energy storage unit side converter 13 .

[0060] The method for the permanent magnet direct drive wind power generation system o...

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 fuzzy control-based permanent magnet direct drive wind power generation system participating in grid frequency regulation method, through the coordinated control of the motor side converter, the grid side converter and the flywheel energy storage unit side converter, the permanent magnet direct drive The wind drive unit can change its output frequency modulation power according to the real-time frequency of the power grid. The main effects are as follows: 1. While providing auxiliary frequency modulation power to the grid, it can also realize maximum wind energy tracking control. 2. It can flexibly change its control parameters according to the frequency of the power grid under all working conditions, and dynamically adjust the equivalent inertia and damping of the system, so that the permanent magnet direct drive wind turbine can participate in the frequency regulation of the power grid to the greatest extent.

Description

technical field [0001] The invention relates to wind power generation technology, in particular to a fuzzy control-based method for a permanent magnet direct drive wind power generation system to participate in grid frequency regulation, and belongs to the field of power control technology. Background technique [0002] In the permanent magnet direct drive wind power generation system, the shaft of the wind turbine is directly connected to the multi-stage low-speed brushless permanent magnet synchronous generator, which saves the transmission gearbox, brushes and slip rings, so the mechanical failure rate is lower and the generator The running stability and reliability are greatly enhanced. At the same time, 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 s...

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): H02J3/38H02J3/30H02J3/24
CPCY02E60/16
Inventor 姚骏余梦婷周特赵磊谭义
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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