Automatic speed regulation and smooth rate apparatus for wind power generation system

A wind power generation system and automatic speed regulation technology, applied in the field of speed stabilizing devices and automatic speed regulation, can solve problems such as performance degradation of generator sets, reduction of wind energy utilization rate, blade pitch angle and generator speed cannot be automatically adjusted, etc.

Inactive Publication Date: 2009-03-25
SHANGHAI INST OF TECH
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, compared with variable-pitch wind turbines, when the fixed-pitch wind turbines operate above the rated wind speed, the performance of the generator...

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
  • Automatic speed regulation and smooth rate apparatus for wind power generation system
  • Automatic speed regulation and smooth rate apparatus for wind power generation system
  • Automatic speed regulation and smooth rate apparatus for wind power generation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0010] Such as figure 1 As shown, the automatic speed regulation and speed stabilization device for wind power generation system of the present invention includes a servo motor 15, a planetary gear transmission mechanism, a continuously variable transmission mechanism, and an electric screw transmission mechanism.

[0011] The planetary gear transmission mechanism is composed of a planet carrier 3, an internal gear 4, a planetary gear 19, and a sun gear 20; a continuously variable transmission mechanism is composed of a bevel wheel 8, a bevel wheel 13, a left and right screw pair 14, and two adjustment levers 6; The transmission mechanism is composed of a left and right screw pair 14 and a servo motor 15; among them, the planetary gear 19 meshes with the sun gear 20 and the internal gear 4 at the same time, and the sun gear 20 is connected to the two be...

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 relates to an automatic speed regulating and stabilizing device for a wind generator system. A planetary gear driving mechanism consists of a planetary carrier, an internal gear, a planetary gear and a sun gear; a stepless gearshift mechanism consists of pulley cones, a left screw pair and a right screw pair and adjustment levers; and an electrical screw drive mechanism consists of a left screw pair, a right screw pair, and a servo-actuator. The planetary gear is engaged with the sun gear and the internal gear simultaneously; the sun gear and the pair of the pulley cones connected with the two adjustment levers are arranged on the same driving shaft, and another pair of pulley cones connected with the two adjustment levers are coaxially arranged on an output shaft, and the two pairs of the pulley cones are connected through a cog belt; the left screw pair and the right screw pair are connected with the two adjustment levers respectively, and are connected with the servo-actuator. Through automatic speed regulation, the wind power of a fixed pitch keeps the generator speed unchanged while allowing the rotor speed to ascend with the increasing of the wind speed, thereby optimizing the tip-speed ratio to make the wind generator system which operates in the rated wind speed obtain larger wind energy.

Description

technical field [0001] The invention relates to an automatic speed regulating and stabilizing device, in particular to an automatic speed regulating and stabilizing device for wind power generation. Background technique [0002] At present, compared with variable-pitch wind turbines, when the fixed-pitch wind turbines operate above the rated wind speed, the performance of the generators will decline due to the fact that the blade pitch angle and the generator speed cannot be automatically adjusted. , the utilization rate of wind energy is greatly reduced. [0003] When the fixed-pitch wind turbine is running above the rated wind speed, if the automatic speed regulation is used, the speed ratio of the blade tip can be optimized while allowing the speed of the wind rotor to increase with the increase of wind speed while keeping the speed of the generator constant. When the wind power generating set is operated above the rated wind speed, it can still obtain relatively large w...

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): F03D7/04F03D1/00F03D11/00F03D15/00
CPCF16H37/0846
Inventor 张锁怀
Owner SHANGHAI INST OF TECH
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