中国电力 ›› 2014, Vol. 47 ›› Issue (5): 97-101.DOI: 10.11930/j.issn.1004-9649.2014.5.97.4

• 发电 • 上一篇    下一篇

TBB-800-2EY3型汽轮发电机定子绕组及其端部支撑结构的改造

孙术文1, 王绍禹2, 韩长利1, 宋玉科1, 石向东1   

  1. 1. 国华绥中发电有限责任公司,辽宁 绥中 125222;
    2. 东北电力科学研究院有限公司,辽宁 沈阳 110006
  • 收稿日期:2014-02-12 出版日期:2014-05-31 发布日期:2015-12-21
  • 作者简介:孙术文(1962-),男,内蒙古宁城人,高级工程师,副总经理,从事技术管理工作。E-mail: sswln@126.com

Reformation of Stator Winding and its End Support Structure of TBB-800-2EY3 Turbo-Generator

SUN Shu-wen1, WANG Shao-yu2, HAN Chang-li1, SONG Yu-ke1, SHI Xiang-dong1   

  1. 1. Guohua Suizhong Power Generation Co.Ltd., Suizhong 125222, China;
    2. Northeastern Electric Power Research Institute Co. Ltd., Shenyang 110006, China
  • Received:2014-02-12 Online:2014-05-31 Published:2015-12-21

摘要: 由于 TBB-800-2EY3型汽轮发电机定子端部绕组支撑结构等的设计存在严重弊病,导致运行中数次发生线棒磨损、漏水故障。按原结构修复投运后再次发生类似故障。为根除上述弊病,采用当代汽轮发电机设计、制造新技术,改造800 MW大容量汽轮发电机定子端部绕组的支撑结构、定子绕组、定子压圈及屏蔽结构。发电机改造后,定子端部绕组的振动值、定子绕组的附加铜损耗和基本铜损耗以及压圈的损耗与温升均大幅度降低,发电机的效率和运行可靠性均有提高。

关键词: 汽轮发电机, 定子绕组, 定子端部绕组支撑结构, 振动, 模态, 损耗, 温升

Abstract: Serious drawbacks exist in the design of stator winding support structure of TBB-800-2EY3 turbo-generator, resulting in several occurrences of faults, such as stator bar insulation wear-out and cooling water leakage during operation. After repaired in its original structure and resumed operation, similar faults occurred in the machine again. In order to eradicate the drawbacks mentioned above, this new techniques of design and manufacture for modern turbo-generators are introduced, which rebuilds the whole stator winding end support structure including stator winding, stator end plates and its screen structure. After the modification, the vibration magnitude of stator end winding, the additional copper loss, the total dc I 2 r loss and end plates loss were considerably diminished. The temperature rise of these parts was appreciably reduced also. The operational efficiency and reliability were improved as well.

Key words: turbo-generator, stator winding, stator end winding support structure, vibration, mode, losses, temperature rise

中图分类号: