|Table of Contents|

Studies on Flow Patter Evolution Characteristics bySelf-support Fan Components Inside Generator(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2020年02期
Page:
31-38
Research Field:
电气工程
Publishing date:

Info

Title:
Studies on Flow Patter Evolution Characteristics bySelf-support Fan Components Inside Generator
Author(s):
Wang Ying1; Ding Shuye1; Yang Zhi2; Zhu Min1; Li Zhenjiang1; Li Zhenghui1
(1.School of NARI Electrical and Automation,Nanjing Normal University,Nanjing 210023,China)(2.704 Research Institute,China Shipbuilding Industry Group Co.,Ltd.,Shanghai 200031,China )
Keywords:
self-support fan; fluid field; flow pattern evolution; structure performance; numerical analysis
PACS:
TM312
DOI:
10.3969/j.issn.1672-1292.2020.02.005
Abstract:
The fluid flow and temperature distribution of large generators are heavily related to the structure of components with the performance of self-support fan. Therefore,it is an urgent need to study the evolution characteristics of the internal fluid field by building the theoretical analysis model,which considers the dynamic effect of the radial ventilation channel steels with the performance of self-support fan component. Firstly,in this paper,a 6.5 MW doubly-fed hydro-generator(DFIG)is taken as an example for studying. By using the numerical research method of the fluid field and establishing the model of the three-dimensional unsteady turbulent fluid field,the effects and influence level of factors such as the rotational speed and the structure of the rotor radial ventilation channel steel on the rheological property of the fluid field are analyzed. Then,the evolution law of fluid field in the generator under the action of the rotor radial ventilation channel steels with self-support fan characteristics is studied,which provides a reference for the structural design and ventilation performance optimization.

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Last Update: 2020-05-15