Method for controlling frequency stabilization of permanent magnet wind-driven generator capable of adapting to changing torque

A technology of wind generator and control method, applied in the direction of frequency and voltage control of generator, can solve the problems of high price and complex equipment structure, and achieve the effect of stabilizing voltage and frequency

Inactive Publication Date: 2009-12-02
BEIJING INST FOR FRONTIER SCI
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can stabilize the voltage and frequency of the generator, its equipment structure is complex and expensive, which accounts for a considerable proportion of the generator set cost.

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 controlling frequency stabilization of permanent magnet wind-driven generator capable of adapting to changing torque
  • Method for controlling frequency stabilization of permanent magnet wind-driven generator capable of adapting to changing torque
  • Method for controlling frequency stabilization of permanent magnet wind-driven generator capable of adapting to changing torque

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The above objects, features, advantages and preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] figure 1 A schematic diagram of the overall structure of the array-type frequency-stabilized permanent magnet wind turbine is shown. figure 2 It shows the structural schematic diagram of the stator and the rotor of the array type frequency-stabilized permanent magnet wind power generator when the end cover is removed. It can be seen from the above two figures that the array-type frequency-stabilized permanent magnet wind power generator includes a stator 2 and two end covers 4 respectively installed at both ends thereof. The stator 2 and the two end covers 4 form a cavity, on which A motor shaft 1 coaxially disposed with a stator 2 protrudes outward from the cavity. A rotor 3 is also installed on the motor shaft 1 , and the rotor 3 is sleeved in the stator 2 .

[0027] In this embodiment, a...

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 controlling frequency stabilization of a permanent magnet wind-driven generator capable of adapting to changing torque. The generator directly obtains a stable voltage frequency in the process of converting mechanical energy into electric energy by the method. The method obtains the voltage frequency of the generator by a frequency stabilization control system, and controls the opening and closing of a stator winding switch by an ADRC according to difference between the voltage frequency of the generator and a rated value to further control the number of the windings connected and adjust the rotating speed of the generator so as to adjust the voltage frequency of the generator and keep the voltage frequency of the generator stable.

Description

technical field [0001] The invention relates to a control method for a wind power generator, in particular to a frequency stabilization control method capable of stabilizing the output voltage frequency. Background technique [0002] In recent years, under the general trend of saving energy and protecting the environment, the wind power industry has developed rapidly. As we all know, the core component of wind power generation, that is, the wind generator is driven by the wind to rotate the blades, and then drive the rotor to rotate, so that the coil cuts the magnetic force lines to generate current. When the number of turns of the winding coil and the strength of the magnetic field are fixed, the voltage frequency of the wind turbine is proportional to the rotational speed of the rotor. Therefore, as long as the rotational speed is constant, the voltage frequency of the wind turbine can remain constant. However, what often happens is that as the wind energy changes, its d...

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
IPC IPC(8): H02P9/44
Inventor 毕大川陈泽森
Owner BEIJING INST FOR FRONTIER SCI
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap