Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for controlling rotation speeds of power generator

A speed control and generator technology, which is applied in the control of wind turbines, engines, wind power generation, etc., can solve the problems of high cost, large manpower and material resources, and increasing the power generation of generator sets.

Active Publication Date: 2015-07-08
CHONGQING HAIZHUANG WINDPOWER ENG CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because the improvement of the mechanical and electrical hardware conditions of the generator and frequency converter requires a lot of manpower and material resources, the cost is relatively large. How to improve the output power of the generator set on the basis of the existing hardware and under the condition of mechanical safety operation , increasing the generating capacity of generator sets is a technical problem to be solved by those skilled in the art

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
  • Method and device for controlling rotation speeds of power generator
  • Method and device for controlling rotation speeds of power generator
  • Method and device for controlling rotation speeds of power generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The core of the present invention is to provide a generator speed control method, which can increase the generating power of the generating set without increasing the hardware cost, and increase the generating capacity of the generating set.

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0059] Please refer to figure 2 , figure 2 It is a flow chart of a generator speed contro...

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 and a device for controlling rotation speeds of a power generator, wherein the method comprises the following steps: starting the power generator with a first constant rotation speed; running the power generator based on an acquired optimal tip speed ratio when a generated power reaches a first threshold value; running the power generator based on a first preset rotation speed program when the rotation speed of the power generator reaches a second constant rotation speed value; and allowing the power generator to enter a constant power running zone when the generated power reaches a constant power. The method is able to increase the generated power of a power generator unit without increasing the hardware cost, accordingly increasing the generating capacity of the power generator unit.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a generator speed control method and device. Background technique [0002] A wind turbine is a device that converts wind energy into electrical energy. The wind energy conversion efficiency is related to the speed control curve of the wind rotor of the unit. However, due to the constraints of the mechanical and electrical hardware conditions of the generator and frequency converter, the speed and power It is limited within a certain range, among which, for example, the generator speed control curve of the variable speed and pitch wind turbine is divided into four sections, which are: [0003] Section A: the first constant speed zone (running at constant speed); [0004] Section B: optimal tip speed ratio (λ) tracking area (output with maximum power coefficient (Cp)); [0005] Section C: the second constant speed zone (running at a constant speed); [0006] Section D: const...

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
CPCF03D7/00Y02E10/72
Inventor 刘杰张凯杨微陶芬杜炜蔡梅园陈鹏
Owner CHONGQING HAIZHUANG WINDPOWER ENG CO LTD