Development of online monitoring device for turbine subsynchronous damping

KANG Jun; LIU Quan; CHANG Fujie; ZHAO Yonglin; SUN Xiaojing; ZHENG Wei; SUN Lixin

English

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Development of online monitoring device for turbine subsynchronous damping

Thermal Power Generation Vol. 43, Issue 7, Pages: 92-96(2014)

更新时间：2025-09-28

- Development of online monitoring device for turbine subsynchronous damping
- 作者机构：
  
  1. 北方联合电力有限责任公司
  2. 北京四方继保自动化股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM311
- Published：2014
- 稿件说明：
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KANG Jun, LIU Quan, CHANG Fujie, et al. Development of online monitoring device for turbine subsynchronous damping[J]. Thermal Power Generation, 2014, 43(7): 92-96.
DOI：

KANG Jun, LIU Quan, CHANG Fujie, et al. Development of online monitoring device for turbine subsynchronous damping[J]. Thermal Power Generation, 2014, 43(7): 92-96. DOI：

摘要

针对汽轮发电机次同步振荡监测尚不能对系统阻尼进行连续在线监测的问题

提出了一种便于计算机实现的次同步振荡扰动提取判别方法、基于扰动的次同步模态阻尼衰减率和模态阻尼的计算算法

通过模态衰减率的在线计算得到模态阻尼的实时计算值。应用结果表明

该装置可实时定量系统阻尼和评估次同步抑制装置的抑制效果

同时可为次同步仿真研究提供更为精细化的模型参数和基础数据。

Abstract

A practical measuring method of subsynchronous oscillation(SSO)damping was promoted to monitor the damping of SSO online.The new method can be easily realized on a computer

which consists of an intelligent fault detect algorithm and a real-time damping calculation algorithm.The real-time SSO damping monitoring system was applied in some power plants.The application results show that

this device can calculate the system damping real-time and evaluate the inhibition effect of subsynchronous inhibition equipment

which can provide more accurate parameters for the SSO simulation.

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