Grey Theory Based Vibration Prediction for Steam Turbines

被引：1

作者：

LIANG Lei SU Leitao FENG Yongxin JIANG Dongxiang State Key Laboratory of Control and Simulation of Power System and Generation Equipment Tsinghua University Beijing China Electric Power Research Institute of Guangdong Power Grid Corporation Guangzhou Guangdong Province Chin ^{[1
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机构：

来源：

热力发电 | 2012年 / 41卷 / 10期

关键词：

grey prediction; posterior error; correlation degree; steam turbine; vibration;

D O I：

暂无

中图分类号：

TK261 [理论];

学科分类号：

080704 ;

摘要：

The Mechanism of grey prediction method and its application advantages in safety prediction were described.This method was used to predict the vibration amplitude within the coming 6hours for a steam turbine.Moreover , the prediction results were examined using correlation degree and posterior error.Results indicated that , this grey prediction method had small posterior error and got a grade I accuracy.We can foreknow the variation trend of vibration amplitude of the steam turbine through this method , so as to take timely countermeasures.Therefore , the operation safety of the power unit was improved.

引用

页码：21 / 24

页数：4

共 7 条

[1]

Study on Grey Prediction Method and Its Appli-cation. HU Kun. . 2004

[2]

Grey system theory and its application. LIU SF,XIE NM. . 2008

[3]

25 Key Demands to Prevent Major Accident in Electrical Production. State Power Corporation. . 2001

[4]

System Safety Assessment and Prediction. JING Guoxun,SHI Shiliang. . 2009

[5]

Grey Prediction and Deci-sion Modeling. DANG Yaoguo,LIU Sifeng etc. . 2009

[6]

Grey System Theory. Deng J L. . 2002

[7]

Practical Study on Grey Forecasting Theory and Evaluation Methods in Water Environment. LIU Jinying. . 2004

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