Active Frequency Modulation Control of Turbo-Generator Winding End Vibration Based on Temperature Field Variation

Shi LIU; Wenjun WAN; Qingshui GAO; Yi YANG; Zhengping ZHANG; Xianliang XIA; Chaoqi GAN; Qunfa YANG; Chu ZHANG; Zheng HUANG

doi:10.12096/j.2096-4528.pgt.2018.004

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Active Frequency Modulation Control of Turbo-Generator Winding End Vibration Based on Temperature Field Variation

Power Generation and Environmental Protection | 更新时间：2025-07-04

- Active Frequency Modulation Control of Turbo-Generator Winding End Vibration Based on Temperature Field Variation
- Power Generation Technology Vol. 39, Issue 1, Pages: 23-29(2018)
- 作者机构：
  
  1.广东电网有限责任公司电力科学研究院，广东省广州市 510080
  2.广东电科院能源技术有限责任公司，广东省广州市 510080
  3.上海电气电站设备有限公司发电机厂，上海市闵行区 201100
  4.广东国华粤电台山发电有限公司，广东省台山市 529200
  5.广东珠海金湾发电有限公司，广东省珠海市 519000
- 作者简介：
- 基金信息：
  
  National Key Research and Development Program of China(2017YFB0903604)
- DOI：10.12096/j.2096-4528.pgt.2018.004
  CLC：
- Received：01 December 2017，
  
  Published：28 February 2018
- 稿件说明：
移动端阅览
Shi LIU, Wenjun WAN, Qingshui GAO, et al. Active Frequency Modulation Control of Turbo-Generator Winding End Vibration Based on Temperature Field Variation[J]. Power Generation Technology, 2018, 39(1): 23-29.
DOI：

Shi LIU, Wenjun WAN, Qingshui GAO, et al. Active Frequency Modulation Control of Turbo-Generator Winding End Vibration Based on Temperature Field Variation[J]. Power Generation Technology, 2018, 39(1): 23-29. DOI： 10.12096/j.2096-4528.pgt.2018.004.

摘要

针对引进型大型发电机定子绕组端部振动超标问题，提出一种基于温度场变化的定子绕组端部振动主动调频控制方法。采用两端固定-铰支直梁，研究温度场变化对结构固有频率的影响机制。据此设计试验方案，结果表明，通过调整定子冷却水、冷氢温度，达到定子绕组端部固有频率远离电磁激振频率的目的，避开了共振区，从而有效地降低了定子绕组端部的振动。最后，开发了基于温度场热应力主动调频控制逻辑模块，为控制汽轮发电机定子绕组端部的振动提供一种新方法。

Abstract

Aiming at the problem of excessive vibration of the stator end winding of the imported large turbo-generators

an active frequency modulation control method of the stator end winding vibration based on the change of temperature field was proposed. Taking the fixed-hinged straight beam as an example

the influence mechanism of temperature field on natural frequency of structure was studied

and a test plan was designed. The results show that by adjusting the temperature of the stator cooling water and cold hydrogen

the natural frequency of the stator end winding is far away from the electromagnetic excitation frequency and the resonance region is avoided

thereby effectively reducing the vibration of the stator end winding. Finally

the active frequency modulation control logic module based on temperature field thermal stress was developed

which provides a new method for controlling the vibration of the stator end winding of turbo-generator.

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references

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