Control device and control method for compensating torque adjusting delay of wind generating set

A wind turbine, torque adjustment technology, applied in the direction of wind engine control, wind engine, wind power generation, etc., can solve problems such as unreachable

Inactive Publication Date: 2012-05-09
沈阳工业大学自控技术有限公司
View PDF8 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most important uncontrollable factors of wind turbines are the randomly changing wind speed and the hysteresis of to

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
  • Control device and control method for compensating torque adjusting delay of wind generating set
  • Control device and control method for compensating torque adjusting delay of wind generating set
  • Control device and control method for compensating torque adjusting delay of wind generating set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] A control device for compensating the lag in torque regulation of wind turbines, such as figure 2 As shown, it includes wind turbine, pitch control mechanism, parameter detection module, main controller, overvoltage protection module and frequency conversion controller. SUT-200 doubly-fed induction generator is selected for the wind power generating set, and the model of the parameter detection module is WE100B, the principle is as follows Figure 5 As shown, the main controller is WE1000-D controller, the switch is WE180 switch, the I / O module is WE100B module, and the frequency conversion controller is VACONNXI 03855 inverter. The principle of wind turbine torque compensation is as follows: figure 1 shown.

[0046] The pitch-changing mechanism includes a pitch-changing motor, an electric push rod and a pitch-changing shaft; the pitch-changing motor is conn...

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

A control device and a control method for compensating torque adjusting delay of a wind generating set are provided. The control device comprises the wind generating set, a pitch control mechanism, a parameter detecting module, a main controller, an overvoltage protecting module and a frequency conversion controller. By the adoption of the control method for compensating the torque adjusting delay of the wind generating set, the influence of torque adjustment on a whole machine is reduced. On one hand, a feed forward link is added in the control device and the control method, thereby greatly removing the delay caused by torque control and the influence of a random wind speed on quality of system control, optimizing power output of the set and improving responding speed of a subsystem controlled by a fan; on the other hand, a damper is added so as to reduce influence of load impact on a set transmission chain. By means of the control device and the control method for compensating the torque adjusting delay of the wind generating set, responding delay of the wind generating set caused by the torque control and the impact on transmission chain loads can be reduced.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a control device and method for compensating lag in torque regulation of a wind power generating set. Background technique [0002] At present, variable-speed and variable-pitch wind turbines have become the main models in the field of wind power generation. The reasons are as follows: 1. At low wind speeds, the wind rotor can be operated at the best blade tip speed ratio to obtain the best wind speed. Wind energy utilization coefficient C pmax ; 2. When the wind speed is high, the aerodynamic torque can be limited by pitch control, so that the unit can output constant power. [0003] When the wind power system presents time lag and is subject to many interference factors and high interference frequency, the rapidity and stability of the system response speed are very important. The main uncontrollable factors of wind turbines are the randomly changing...

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): F03D7/00H02P9/04
CPCY02E10/723Y02E10/72
Inventor 王湘明郭成广董磊书孙东华杨波
Owner 沈阳工业大学自控技术有限公司
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