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Double-impeller synchronous wind generating set

A technology of synchronous wind power generation and double impellers, which is applied in wind turbine combinations, wind turbines, wind turbines in the same direction as the wind, etc., can solve the problems of inseparability, high-order harmonics of the power grid, and low transmission efficiency.

Inactive Publication Date: 2016-11-23
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing friendly wind power generation technology can effectively deal with grid faults, but there are still some shortcomings: the transmission efficiency of winddriver system and electromagnetic coupling speed regulation is not high; electromagnetic coupling speed regulation and differential speed regulation are inseparable from power electronic converters , due to the existence of the converter, it will inevitably generate higher harmonics in the grid

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  • Double-impeller synchronous wind generating set

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Embodiment Construction

[0012] Now with figure 1 The schematic diagrams shown detail specific embodiments of the invention.

[0013] A double impeller synchronous generator set is mainly composed of an upwind impeller, a downwind impeller, a gear transmission system and a synchronous generator.

[0014] The gear transmission system consists of two-stage planetary gear transmission and one-stage fixed shaft gear transmission. The planetary gear transmission consists of a front planetary row and a rear planetary row. The front planetary row is composed of the front row ring gear (3), the front row planet carrier (4), the front row planetary gear (5) and the front row sun gear (6). The rear planetary row consists of a rear planetary carrier (7), a rear planetary gear (8), a rear ring gear (9) and a rear sun gear (10). The fixed shaft gear transmission is made up of a bull gear (11) and a pinion (12), and the bull gear (11) and the pinion (12) keep meshing relationship. The front row sun gear (6) is ...

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Abstract

The invention discloses a double-impeller synchronous wind generating set. The double-impeller synchronous wind generating set mainly comprises an upwind impeller, a downwind impeller, a gear drive system and a synchronous electric generator, wherein power needed by the synchronous electric generator is input by the upwind impeller and the downwind impeller, and power of the two impellers is transmitted to the synchronous electric generator after being combined by a differential gear train. The upwind impeller is a variable-pitch impeller, blades of the downwind impeller can move in the radial direction of a hub, and the electric generator can be operated at the synchronous rotation speed by adjusting the rotation speed of the two impellers and excitation of the synchronous electric generator. The double-impeller synchronous wind generating set has the advantages that the cost is low, the drive efficiency is high, and the ability to handle grid faults is high.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a double impeller synchronous wind power generating set. Background technique [0002] As a renewable and clean energy with huge reserves, wind energy has been paid more and more attention by various countries. In recent decades, wind power technology has developed rapidly. [0003] Since 2010, the installed capacity of wind power in China has surpassed that of the United States, and the absolute value of installed capacity ranks first in the world. With the continuous increase of wind power installed capacity, the problems faced by wind power generation technology are becoming more and more prominent. Wind power is facing two important problems that need to be solved urgently: one is the poor stability of wind power; the other is the poor reliability of wind power generation equipment. [0004] One manifestation of poor wind power stability is that the wind power system h...

Claims

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Application Information

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IPC IPC(8): F03D9/25F03D1/02F03D1/06F03D7/02F03D15/10
CPCF03D1/025F03D1/065F03D7/0224Y02E10/72
Inventor 李华龙慧姚进杨亚茹
Owner SICHUAN UNIV