Decoupling control method for variable pitch control and torque control of large wind turbine unit

A technology of torque control and wind turbines, applied in the control of wind turbines, wind power generation, wind turbines, etc., can solve problems such as large impact loads, frequent switching, and affecting the service life of components, and achieve the effect of reducing costs

Inactive Publication Date: 2013-03-27
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
View PDF7 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: the current decoupling technical scheme of pitch control and torque control will cause a relatively large impact load in the process of switching between

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
  • Decoupling control method for variable pitch control and torque control of large wind turbine unit
  • Decoupling control method for variable pitch control and torque control of large wind turbine unit
  • Decoupling control method for variable pitch control and torque control of large wind turbine unit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] attached figure 1 The principle diagram of the decoupling structure of torque control and pitch control of the present invention is given. It can be seen from the accompanying drawings that the present invention relates to a decoupling control method of pitch control and torque control of large-scale wind turbines, wind power generation The entire control system of the wind turbine is composed of a pitch control system and a torque control system. During the operation of the fan, the pitch PID controller and the torque controller operate at the same time, and the pitch control is realized by the pitch PID controller. , the torque control is realized by the torque controller.

[0026] likefigure 1 As shown, the pitch control system includes a pitch deviation calculation module 1, a pitch PID controller module 2, and a pitch position limiting modu...

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 decoupling control method for variable pitch control and torque control of a large wind turbine unit. The large wind turbine unit consists of a variable pitch control system and a torque control system. During the operation of a fan, a pitch PID (Proportion Integration Differentiation) controller and a torque controller operate simultaneously, wherein variable pitch control is implemented by the pitch PID controller, and torque control is implemented by the torque controller. The variable pitch control system is formed by a pitch deviation calculating module, a pitch PID controller module, a pitch amplitude limiting module and the like by means of combination, and the torque control system is formed by a torque deviation calculating module, a torque PID controller module, a torque amplitude limiting module and the like by means of combination. The decoupling control algorithm provided by the invention realizes decoupling algorithms of the pitch controller and the torque controller by amending controller software without adding extra hardware, so that the cost of the fan is reduced.

Description

technical field [0001] The present invention relates to a control method for a large-scale wind turbine, in particular to a decoupling control method for pitch control and torque control of a large-scale wind turbine Background technique [0002] With the large-scale application of wind power, power generation companies and grid operators have put forward more stringent requirements on the control system of wind turbines in terms of power curve, grid friendliness, unit life, and optimal design. The existing wind turbine control system mainly adopts the control method combining torque control and pitch control. When the power of the wind turbine is less than the rated power, the torque control method is mainly used, and the torque controller is used to give the torque command to indirectly adjust the speed of the fan to follow the change of wind speed to achieve the optimal tip speed ratio and capture the maximum wind energy. When the wind speed exceeds the rated wind speed ...

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): F03D7/00
CPCY02E10/723Y02E10/72
Inventor 杜佳佳万宇宾刘红文王靛
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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