基于发电机扭矩的轴系快速疲劳损伤评价方法研究

doi:10.11930/j.issn.1004-9649.2017.05.001.06

中国电力 ›› 2017, Vol. 50 ›› Issue (5): 1-6.DOI: 10.11930/j.issn.1004-9649.2017.05.001.06

• 安全专栏 • 下一篇

基于发电机扭矩的轴系快速疲劳损伤评价方法研究

鲁录义¹, 王坤¹, 李汪繁², 孙庆², 薛成勇³

1. 华中科技大学,湖北武汉 430074;
2. 上海发电设备成套设计研究院,上海 200240;
3. 神华国华呼伦贝尔发电有限公司,内蒙古呼伦贝尔 021025

收稿日期:2017-03-01 出版日期:2017-05-20 发布日期:2017-05-26
作者简介:鲁录义（1980—）,男,湖北荆州人,博士,从事动力设备及系统安全性评价,热能机械流动、传热与强度耦合性分析研究等工作。E-mail:hust_lly@hust.edu.cn
基金资助:
国家科技重大专项（2012ZX06002-017-01-04）

Study on Fast Assessment of Shafting Fatigue Damage Based on Turbo-Generator Torque

LU Luyi¹, WANG Kun¹, LI Wangfan², SUN Qing², XUE Chenyong³

1. Huazhong University of Science and Technology, Wuhan 430074, China;
2. Shanghai Power Equipment Research Institute, Shanghai 200240, China;
3. Shenhua Guohua Hulunbuir Electricity Generating Co., Ltd., Hulunbuir 021025, China

Received:2017-03-01 Online:2017-05-20 Published:2017-05-26
Supported by:
This work is supported by National Science and Technology Project (No. 2012ZX06002-017-01-04).

摘要/Abstract

摘要： 通过大型汽轮机组的全尺寸模型模态分析结合轴系扭振基础分析,提出了一种基于发电机扭矩的轴系扭振疲劳损伤评估方法,并采用瞬态分析的方法进行了验证。该方法可绕开测速齿轮和扭振传感器,直接利用发电机端电磁转矩进行疲劳损伤评价,同时也可与基于汽轮机机头扭角数据的轴系扭振损伤评估方法相配合,提高电厂轴系扭振疲劳损伤评估的可靠性和准确性。

关键词: 汽轮机发电机组, 轴系扭振, 疲劳分析, 模态分析, 电磁转矩

Abstract: Based on the full-scale model analysis coupled with the basic torsional vibration analysis, a method to assess the shafting torsional vibration fatigue damage is proposed and validated by using the transient numerical analysis. The method can evaluate the damage directly by using the generator’s electromagnetic torque instead of the speed measurement gear and the torsional vibration sensor. The results are consistent with those evaluated by the method adopting turbine-end torsion angle data. This method can improve the precision and accuracy of the torsional vibration fatigue damage assessment.

Key words: steam turbine-generator, torsional vibration, fatigue analysis, modal analysis, electromagnetic torque

中图分类号:

TK262

鲁录义, 王坤, 李汪繁, 孙庆, 薛成勇. 基于发电机扭矩的轴系快速疲劳损伤评价方法研究[J]. 中国电力, 2017, 50(5): 1-6.

LU Luyi, WANG Kun, LI Wangfan, SUN Qing, XUE Chenyong. Study on Fast Assessment of Shafting Fatigue Damage Based on Turbo-Generator Torque[J]. Electric Power, 2017, 50(5): 1-6.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.2017.05.001.06

https://www.electricpower.com.cn/CN/Y2017/V50/I5/1

参考文献

[1] 刘项哲,傅行军. 汽轮发电机组扭振[M]. 北京：中国电力出版社,1997.
[2] ROSARIO D A, KHALID T. Generatorshaft keyway cracking failure investigation[C]//Proceedings of the 9th EPRI Steam Turbine Generator Workshop. August 22-24, 2005, Denver, CO,USA.
[3] JIANG D, HONG L, WANG Z, et al . Torsional vibration analysisand Stress Calculation for the Fault 600 MW Steam Turbine Generator ShaftSystem[C]// Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference. 2009: 103-109.
[4] 卓华,鲁录义,王坤,等. 一种汽轮发电机组轴系扭振疲劳损伤的估算方法[J]. 汽轮机技术,2015,57（4）：313-316.
ZHUO Hua, LU Luyi, WANG Kun, et al . A damage assessment method on torsional vibration of large steam rotors with TSR waveform record and FEM [J]. Turbine Technology, 2015, 57(4): 313-316.
[5] 岑海凤,王西田,刘丽霞,等. 大容量冲击负荷对邻近发电机组影响的评估[J]. 中国电力,2010,43（1）：10-14.
CEN Haifeng, WANG Xitian, LIU Lixia, et al . Evaluation of the effects of high-capacity impact loads on nearby generators[J].Electric Power, 2010, 43(1): 10-14.
[6] LIU Chao, JIANG Dingxiang, CHEN Jingming. Coupled torsional virbration and fatigure damage of turbine generator due to grid disturbance[J]. Journal of Engineering of Gas Turbines and Power, 2014, 136(062501): 1-9.
[7] 徐婧,陈东超,顾煜炯. 非同期并列时机组轴系扭振的时频分析[J]. 中国电力,2014,47（1）：86-90.
XU Jing, CHEN Dongchao, GU Yujiong. Time-frequency analysis of shafting torsional vibration caused by asynchronous Juxtaposition [J]. Electric Power, 2014, 47(1): 86-90.
[8] 黄树红,韩守木,高伟,等. 汽轮发电机甩负荷时的轴系扭振特性[J]. 动力工程,1994,14（2）：36-43.
HUANG Shuhong, HAN Shoumu, GAO Wei, et al . The torsional vibration characteristics of a turbogenerator rotor string on load rejection [J]. Power Engineering, 1994, 14(2): 36-43.
[9] 盛颂恩,孟庆集. 汽轮发电机扭转疲劳寿命估计方法及其程序[J]. 汽轮机技术,1986,31（3）：1-5.
SHENG Songen, MENG Qingji. Damage assessment method on torsional vibration of large steam rotors and it’s program[J].Turbine Technology, 1986, 31(3): 1-5.
[10] 中国南方电网公司. 交直流电力系统仿真技术[M]. 北京：中国电力出版社,2007.
[11] 陈传尧. 疲劳与断裂[M]. 武汉：华中科技大学出版社,2002.

基于发电机扭矩的轴系快速疲劳损伤评价方法研究

Study on Fast Assessment of Shafting Fatigue Damage Based on Turbo-Generator Torque

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 6

编辑推荐

Metrics

[1]	周子康, 陶顺, 薛超凡, 袁威, 徐永海. 电力系统中压电网谐振关键元器件评估[J]. 中国电力, 2024, 57(2): 127-137.
[2]	赵越, 严干贵, 王振洋, 任爽, 王大中, 郭剑宇. 风火打捆经LCC-HVDC送出系统的次同步扭振分析[J]. 中国电力, 2023, 56(6): 18-30.
[3]	吴宇辉, 张扬帆, 高峰, 王玙, 王耀函, 杨伟新, 张鸿. 基于工作模态分析的风电机组叶片裂纹损伤在线监测研究[J]. 中国电力, 2023, 56(10): 106-114.
[4]	孙素娟, 霍乾涛, 孙立鑫, 过亮, 王瑞, 孔祥梅. 考虑整机转矩控制的双馈风机轴系扭振机理分析及抑制策略[J]. 中国电力, 2022, 55(5): 39-46.
[5]	张宇娇, 杨骐, 姜岚, 徐天勇, 董晓虎. 一种基于视频图像识别的输电线路屏蔽环振动频率监测方法[J]. 中国电力, 2018, 51(3): 35-41.
[6]	金铁铮, 张磊, 徐亚涛, 张俊杰, 崔亚辉, 顾煜炯. 汽轮发电机组轴系扭振模型参数识别方法[J]. 中国电力, 2017, 50(4): 100-105.

模态框（Modal）标题

基于发电机扭矩的轴系快速疲劳损伤评价方法研究

Study on Fast Assessment of Shafting Fatigue Damage Based on Turbo-Generator Torque

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 6

编辑推荐

Metrics