Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Power Engineering》 2009-11
Add to Favorite Get Latest Update

A Method of Extracting Correlation Signals from Complex Thermal System

LIU Ji-zhen,HAO Zu-long,TIAN Liang(School of Control Science and Engineering,North China Electric Power University,Beijing 102206,China)  
Making fully use of the large amount of operation historical data from power plants,a complex thermal system correlation signals extracting method was proposed based on similarity of data fluctuation component within characteristic frequency band.Since characteristic components of correlation signals are always concentrated in a specified frequency band,a band-pass filter was designed to eliminate the trend terms and part noise disturbance.The normalization variances with moving window were calculated to enlarge availability information in signals characteristic frequency band,so as to estimate the correlation of signals easily.An example analysis based on a 600 MW unit operation data shows that this method can find correlated signals of combustion disturbance effectively,and can distinguish their relative strength.
【Fund】: 国家自然科学基金资助项目(50776030)
【CateGory Index】: TK31
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Citations】
Chinese Journal Full-text Database 8 Hits
1 LUO Zi-xue1, YANG Chao, ZHOU Huai-chun (State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074);Study on Principles of Acquisition and Application of Information Signals of Radiation Energy in Furnaces[J];Power Engineering;2005-03
2 XING De-shan,YAN Wei-ping,CHEN Yin-ying(North China University of Electric Power,Baoding 071003,China);Operational Effect of Changes of Coal Quality on Pulverized Coal Storage Systems with Ball Mills and Hot Entraining Air[J];Journal of Power Engineering;2006-03
3 TIAN Liang,LIU Xin-ping,ZHAO Zheng,LIU Ji-zhen(Department of automation,North China University of Electric,Baoding 071003,China);Experimental Research of a New Kind of Signal for Amounts of Heat Released[J];Journal of Power Engineering;2006-04
4 DING Yan jun, WANG Pei hong, LU Zhen zhong, CHEN Lai jiu (Power Engineering Department, Southeast University,Nanjing 210096,China);A NOVEL METHOD OF EARLY FAULT DETECTION AND DIAGNOSIS FOR TECHNICAL PROCESS[J];Proceedings of the Csee;2000-03
5 YU Da-ren, GUO Yu-feng (Harbin Institute of Technology, Harbin 150001, China);ANALYSIS ON RANDOM PROCESS OF THE PRIMARY FREQUENCY REGULATION[J];Proceedings of the Csee;2002-06
6 ZHAO Zheng, ZENG De-liang, TIAN Liang, LIU Ji-zhen (Auto Control Department, North China Electric Power University, Baoding 071003, Hebei Province, China);RESEARCH ON SOFT-SENSING OF OXYGEN CONTENT BASED ON DATA FUSION[J];Proceedings of the Csee;2005-07
7 LI Jian-qiang,LIU Ji-zhen,ZHANG Luan-ying,NIU Cheng-lin(Department of Automation,North China Electric Power University,Baoding 071003,Hebei Province,China);The Research and Application of Fuzzy Association Rule Mining in Power Plant Operation Optimization[J];Proceedings of the CSEE;2006-20
8 QIAN Jin1,WANG Pei-hong1,LI Lin2(1.College of Energy and Environment Southeast University,Nanjing 210096,Jiangsu Province,China;2.Shandong Provincial Electric Power Consult Institute,Jinan 250013,Shandong Province,China);Application of Clustering Algorithm in Target-value Analysis for Boiler Operating Parameter[J];Proceedings of the CSEE;2007-23
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 ZHANG Hong_yun,SHI Yang,MA yuan(School of Computer Science and Engineering,Anshan Institute of I.& S.Technology,Anshan 114002,China);Comparison of Clustering Methods in Data Mining[J];Journal of Anshan Institute of Iron and Steel Technology;2001-05
2 Wang Peihong, Chen Qiang, Dong Yihua, Li Lin, Pan Pei (Southeast University, Nanjing 210096, China);DATA MINING AND ITS APPLICATION OF PERFORMANCE ANALYSIS IN THERMAL POWER UNITS[J];Automation of Electric Power Systems;2004-08
3 LIU Chang-liang, LIANG Wei-ping, DONG Zhe (Dept. of Power Engrg., North China Electric Power Univ., Baoding 017003, China);The Hierarchical Fuzzy Control Algorithm for Ball Mill Pulverizing system in Power Plant[J];Power Engineering;2002-05
4 ZHOU Huai chun, HAN Shu dong, SHENG Feng, ZHENG Chu guang (State Key Laboratory of Coal Combustion, Huazhong Univ. of Science and Technology, Wuhan 430074, China);Numerical Simulation on a Visualization Monitoring Method of Three-Dimensional Temperature Distribution in Furnace[J];Power Engineering;2003-01
5 LIU Ji zhen, CHEN Yan qiao, ZENG De liang, Tan Wen (Dept. of Power Engrg., North China Electric Power Univ., Baoding 071003, China);Research on Coordinated Control System of a 500MW Unit Based on Fuzzy Multiple Model[J];Power Engineering;2003-06
6 CHEN Bing-hua,ZHANGJie,SUNRui,WU Shao-hua,QIN Yu-kun (School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China);Numerical Study of Operation Parameters on Pulverized Coal Ignition and Unburned Carbon in Fly Ash for a Boiler[J];Power Engineering;2004-04
7 TIAN Liang,ZENG De-liang,LIU Xin-ping,LIU Ji-zhen (North China Electric Power University, Baoding 071003, China);A Simplified Non-Linear Dynamic Model of 500MW Unit[J];Power Engineering;2004-04
8 LIU Ji-zhen, TIAN Liang, ZENG De-liang, LIU Xin-ping((Department of Automation, North China Electric Power University, Baoding 071003, China);Analysis on the Nonlinearity of Load-Pressure Characteristics of a 660MW Unit[J];Power Engineering;2005-04
9 ZHANG Bu-han, ZHAO Jian-jian, LIU Xiao-hua, LIU Pei, CHENG Shi-jie, LU Jian (College of Electric and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, China; Wuhan Electric Power Bureau, Wuhan 430074, Hubei Province, China);SHORT-TERM LOAD FORECASTING BASED ON WAVELET NEURAL NETWORK[J];Power System Technology;2004-07
10 ZHANG Qing-bao, CHENG Hao-zhong, LIU Qing-shan, ZHENG Ji-wei, NI Dong-hai (Department of Electrical Engineering, Shanghai Jiaotong University, Xuhui District, Shanghai 200030, China: Shanghai Electric Power Company Huxi Branch, Changning District, Shanghai 200051, China);Short-Term Load Forecasting Based on Attribute Reduction Algorithm of Rough Sets and Support Vector Machine[J];Power System Technology;2006-08
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved