Analysis of Causes of Generator Vibration Faults and Rotor Cracking in a Power Plant

Bao Tong Chai; Qing Meng Zeng; Zheng Feng Wu

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Analysis of Causes of Generator Vibration Faults and Rotor Cracking in a Power Plant

机译：发电厂发电机振动故障原因分析

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The vibration of a generator in a power plant and the cause of rotor cracking were analyzed. The causes of generator rotor cracking were analyzed from the rotor raw material and heat treatment process. The results show that the brittleness and notch sensitivity of the rotor material are large due to the unreasonable heat treatment process of the rotor. When the stress is concentrated, a cracking accident occurs. The generator rotor was returned to the manufacturing company for operation. At 3000 r·tnin~(-1), the generator's overhanging end vibrated greatly, and the fault was successfully eliminated by the dynamic balance test.

机译：分析了发电厂中发电机的振动和转子裂纹的原因。从转子原料和热处理过程分析发电机转子裂纹的原因。结果表明，由于转子的不合理的热处理过程，转子材料的脆性和缺口敏感性大。当应力集中时，发生裂化事故。发电机转子被返回到制造公司进行操作。在3000 r·tnin〜（-1）中，发电机的悬垂末端大大振动，通过动态平衡测试成功消除了故障。

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来源
《Applied Mechanics and Materials》 |2019年第2019期|39-44|共6页
作者
Bao Tong Chai; Qing Meng Zeng; Zheng Feng Wu;
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作者单位

Huadian Electric Power Research Institute Co. Ltd. No.2 Xiyuan Ninth Road Hangzhou 310030 China;

Huadian Electric Power Research Institute Co. Ltd. No.2 Xiyuan Ninth Road Hangzhou 310030 China;

Huadian Electric Power Research Institute Co. Ltd. No.2 Xiyuan Ninth Road Hangzhou 310030 China;

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原文格式 PDF
正文语种 eng
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关键词
Generator; Fatigue cracking; Dynamic balance;

机译：发电机;疲劳裂缝;动态平衡;

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1. EFFECT OF INTERNAL POWER-ANGLE ON TURBO-GENERATOR ROTOR VIBRATION CHARACTERISTICS UNDER ECCENTRICITY FAULTS [J] . Wan Shuting, He Yuling, Zhan Changgeng Transactions of the Canadian Society for Mechanical Engineering . 2014,第1期

机译：偏心故障下内部功率角对涡轮发电机转子振动特性的影响
2. Investigation on Rotor Vibration Characteristics of Turbo-generator under Air Gap Eccentricity and Rotor Short Circuit Composite Faults [J] . Shuting Wan, Yuling He, Guiji Tang Journal of the Chinese Society of Mechanical Engineers, Series C: Transactions of the Chinese Society of Mechanical Engineers . 2011,第2期

机译：气隙偏心与转子短路复合故障下汽轮发电机转子振动特性的研究
3. Rotor UMP characteristics and vibration properties in synchronous generator due to 3D static air-gap eccentricity faults [J] . He Yu-Ling, Sun Yue-Xin, Xu Ming-Xing, Electric Power Applications, IET . 2020,第6期

机译：由于3D静态空气间隙偏心故障，同步发电机中的转子UMP特性和振动特性
4. Analysis of Causes of Generator Vibration Faults and Rotor Cracking in a Power Plant [C] . Bao Tong Chai, Qing Meng Zeng, Zheng Feng Wu International Conference on Material Science and Engineering Technology . 2019

机译：发电厂发电机振动故障原因分析
5. A coupled rotor-fuselage vibration analysis for helicopter rotor system fault detection. [D] . Yang, Mao. 2003

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6. A Novel Method for Identifying Crack and Shaft Misalignment Faults in Rotor Systems under Noisy Environments Based on CNN [O] . Wang Zhao, Chunrong Hua, Dawei Dong, 2019

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7. Rotor Blade Pitch Imbalance Fault Detection for Variable-Speed Marine Current Turbines via Generator Power Signal Analysis [O] . Yufei Tang 2020

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Analysis of Causes of Generator Vibration Faults and Rotor Cracking in a Power Plant

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