发明名称 DETECTION AND QUANTIFICATION OF STICTION
摘要 <p>Abstract An effective non-intrusive data-based monitoring method may reduce the cost of control loop performance maintenance by screening and short-listing those control loops or valves that need maintenance. The invention comprises a data-based, model-free, non-invasive method that can automatically detect and quantify stiction present in control valves. The method does not require the implementation of any additional valve travel test or, as commonly known, bump test of the control loop. The method may detect and quantify stiction using controlled variable (pv), controller output (op) and set point (sp) data. It does not require valve positioner (mv) data.</p>
申请公布号 WO2006002533(A1) 申请公布日期 2006.01.12
申请号 WO2005CA01031 申请日期 2005.06.30
申请人 UNIVERSITY OF ALBERTA;MATRIKON INC.;CHOUDHURY, MD ALI A. SHOUKAT;SHAH, SIRISH L.;THORNHILL, NINA F.;SHOOK, DAVID 发明人 CHOUDHURY, MD ALI A. SHOUKAT;SHAH, SIRISH L.;THORNHILL, NINA F.;SHOOK, DAVID
分类号 (IPC1-7):G05B23/00 主分类号 (IPC1-7):G05B23/00
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