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

Variable-pitch adaptive control method and system for wind generating set

A wind turbine, adaptive control technology, applied in wind engine control, engine control, wind engine, etc., can solve problems such as blade stall, achieve the effect of increasing output, solving local stall, and wide application

Active Publication Date: 2018-10-26
CRRC WIND POWER(SHANDONG) CO LTD +1
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide an adaptive control method for wind turbine pitch, which can well solve the problem of blade stall caused by air density drop in high altitude areas

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
  • Variable-pitch adaptive control method and system for wind generating set
  • Variable-pitch adaptive control method and system for wind generating set
  • Variable-pitch adaptive control method and system for wind generating set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0037] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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 variable-pitch adaptive control method and system for a wind generating set. According to the type of the wind generating set and the running condition of the set site, a corresponding relation between the wind speed and the pitch angle in a pitch angle limit table and an interval of the pitch angle optimization are determined; a performance evaluation strategy of the wind generating set is designed, the performance of the unit under different pitch angle parameters are compared, so that the pitch angle parameters corresponding to the optimal performance of the set are found to serve as an optimal parameter of the set; and the interval is optimized for the pitch angle, an optimal pitch angle parameter value is found out by continuously narrowing the range of the optimization according to the tracking iteration, the control parameters are guaranteed to be in the optimal position, and self-adaptive control is achieved. According to the method and system, the problem of local stall of blades of the wind generating set can be well solved, the power curve of the unit is optimized, the generating capacity of the unit is greatly improved, meanwhile, the problem that the current parameter optimization needs to be debugged on site is solved, and the time and the labor cost are greatly saved.

Description

technical field [0001] The invention relates to a pitch adaptive control method and system of a wind power generating set. Background technique [0002] With the continuous increase of the scale of wind turbine assembly, the geographical conditions of different regions and the change of climate with seasons will have an impact on the power generation efficiency of the unit. The loss of power generation caused by geographical differences in geographical conditions and climate changes with seasons will affect the owner's return on investment. At the same time, due to increasingly fierce market competition, owners have put forward higher requirements on the ability of complete machine manufacturers to improve power generation. In this case, it is very necessary to develop an optimal control algorithm that can adapt to the environment to increase the power generation of the unit. [0003] For units in mountainous areas, especially in high-altitude areas, when the power is clos...

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 Applications(China)
IPC IPC(8): F03D7/00
CPCF03D7/00F05B2270/404F05B2270/328Y02E10/72
Inventor 牛成鲁效平李婷刘翠翠刘南南
Owner CRRC WIND POWER(SHANDONG) CO LTD
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

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