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

Guaranteed Performance Maximum Power Tracking Method for Wind Turbine Based on Sliding Mode Control

A maximum power tracking, wind turbine technology, applied in wind energy generation, wind turbine, wind turbine control and other directions, can solve the problems of inability to guarantee the steady state performance of the system, many debugging parameters, and complex design process, and achieve a simplified controller. Design, avoid the design process, increase the effect of the unit capacity

Active Publication Date: 2022-05-27
ZHEJIANG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to improve the wind energy capture efficiency of wind turbines and solve the problems of low wind capture efficiency, inability to guarantee system steady-state performance, complex design process, and many parameters to be debugged in the existing maximum wind energy capture method, the present invention provides a simple, easy-to-operate, control The maximum wind energy capture method with simple parameter debugging can realize the guaranteed performance control of the unit, thereby increasing the power generation of the 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
  • Guaranteed Performance Maximum Power Tracking Method for Wind Turbine Based on Sliding Mode Control
  • Guaranteed Performance Maximum Power Tracking Method for Wind Turbine Based on Sliding Mode Control
  • Guaranteed Performance Maximum Power Tracking Method for Wind Turbine Based on Sliding Mode Control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0054] In this embodiment, the GH Bladed wind power development software is used to verify the effectiveness of the method provided by the present invention. In order to illustrate the innovation of the present invention, a comparison is made with the optimal torque control method commonly used in the industry at present.

[0055]

[0056] Among them, T gOTC is the electromagnetic torque value given by the optimal torque control algorithm, k opt is the control parameter, ω g is the generator speed, ρ=1.225Kg / m 3 is the air density, R=38.5m is the radius of the rotor, C pmax =0.482 is the maximum wind energy capture coefficient, λ opt = 8.5 is the optimum tip speed ratio, n g =104.494 is the gear ratio of the gearbox.

[0057] like figure 1 shown, is the fence Lyapunov function , where ε=10. It can be seen that, after the action of the fence Lyapunov function, the error is limited to the preset error bound, so the method of the present invention can improve the opt...

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 tracking maximum power of a wind turbine with guaranteed performance based on sliding mode control. Obtain the control target of the maximum power tracking of the wind turbine, and calculate the maximum power tracking error, obtain the dynamic characteristics of the maximum power tracking error, design the control signal expression according to the principle of sliding mode control, according to the principle of Lyapunov stability and the barrier Lyapu The Nove function design controls the update rate of the gains. This method avoids overestimation of the unknown dynamics of the system, so that the control gain can be maintained within a reasonable range according to the change of the unknown dynamics, reducing the vibration of the electromagnetic torque, thereby reducing the mechanical load of the transmission chain system, and prolonging the service life of the unit life, improve the steady-state performance of maximum power tracking, improve the wind energy capture efficiency of the unit, require less control parameters to be debugged, and the design and implementation process are simple. Compared with the traditional optimal torque control algorithm, it can increase the unit production capacity and increase the wind farm economic benefits.

Description

technical field [0001] The invention relates to the technical field of wind turbine control, in particular to a guaranteed maximum power tracking method for wind turbines based on sliding mode control. Background technique [0002] In recent years, the growth rate of my country's wind power installed capacity has ranked first in the world. However, due to the late start of wind power generation in my country, my country's wind power companies still rely on the development platforms and control systems of foreign wind power giants to conduct upper-level wind power technology research and development. Therefore, it is of great strategic significance to break the monopoly and develop an intelligent wind power control system with independent intellectual property rights. [0003] The maximum wind energy capture is one of the main control objectives of wind turbines, and it is an important guarantee for maximizing the economic benefits of wind farms. In order to achieve this goal...

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): G06Q50/06G06F30/20F03D7/00
CPCG06Q50/06F03D7/00Y02E10/72Y02P70/50Y04S10/50Y02E40/70
Inventor 杨秦敏焦绪国陈积明叶毅李思亮申云程捷李思涵李宜祥田洪海姚禹邹小标
Owner ZHEJIANG 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