|Table of Contents|

Numerical simulation of ventilation cooling system for brushless exciter
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[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2016年06
Page:
26-31
Research Field:
Publishing date:

Info

Title:
Numerical simulation of ventilation cooling system for brushless exciter
Author(s):
LU Yi-ping1 ZHANG Dong-xue1 SUN Bo1 WANG Zuo-min1 LI Meng-qi2
 ( 1. School of Mechanical & Power Engineering,Harbin University of Science and Technology,Harbin 150080;
2. Harbin Electric and Power Equipment Company Limited,Harbin 150040,China)
Keywords:
brushless exciter ventilation scheme numerical simulation finite volume method flow and temperature fields
PACS:
TM 311
DOI:
10. 15938 / j. emc. 2016. 06. 004
Abstract:
In order to study the flow path and cooling characteristic of cooling air of ventilation scheme for the brushless exciter of non-salient pole synchronous motor,the finite volume method was adopted,ac-cording to the computational fluid dynamics ( CFD) principles. A half physical model of a new brushless exciter structure that is relative to the ground was established. The flow path,flow and temperature fields of ventilation scheme of the brushless exciter were researched. The cooling characteristic of ventilation scheme and distribution feature of flow and temperature fields were given. The results show that the posi-tion of the highest temperature of the brushless exciter appear in the end of rotor bar. And the insulation temperature of brushless exciter is not overheating. Compared with the value that is calculated by the in-stitute of electronic machinery technology through Equivalent Network Method,the errors of total volume flow rate is only 5. 6% ,under the same condition. The results provide theoretical basis for further optimi-zing the air ducts structure of the exciter.

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Last Update: 2016-08-20