信阳师范学院学报（自然科学版）2024，Vol.37Issue(2)：252-258,7.DOI:10.3969/j.issn.1003-0972.2024.02.019
基于核回归区间模型的电液位置伺服系统故障检测
Fault Detection for Electro Hydraulic Position Servo System Based on Kernel Regression Interval Model
摘要
Abstract
For nonlinearity,disturbance,complexity and parameter uncertainty in the electro hydraulic position servo system,a fault detection method for electro-hydraulic position servo system based on kernel regression interval model was proposed.The method made full use of the measurable input-output data to construct interval model,where those data was capable of reflecting the uncertainties of electro-hydraulic position servo system in the absence of failure,the accuracy and structure complexity of the constructed interval model could be trade-off.The interval model was used to judge whether the actual output of the electro hydraulic position servo system exceeded the interval output to realize fault detection.Because this method considered the dynamic threshold based on interval for fault detection,it could eliminate the false alarm of fixed threshold and was capable of improving the adaptability in detecting fault.The experimental examples were investigated to demonstrate the effectiveness of the proposed fault detection method,which could be applied for the real-time fault detection of the electro-hydraulic position servo system.关键词
故障检测/核回归区间模型/电液位置伺服系统/动态阈值Key words
fault detection/kernel regression interval model/electro-hydraulic position servo system/dynamic threshold分类
信息技术与安全科学引用本文复制引用
王兴涛,刘小雍..基于核回归区间模型的电液位置伺服系统故障检测[J].信阳师范学院学报（自然科学版）,2024,37(2):252-258,7.基金项目
贵州省科技厅项目(黔科合基础[2018]1179号) （黔科合基础[2018]1179号）
贵州省教育厅青年项目(黔教技[2022]312号) （黔教技[2022]312号）
遵义市校联合项目(遵义市科合HZ字(2022)132号) （遵义市科合HZ字(2022）
区校联合项目(遵红科合师字[2022]09号) （遵红科合师字[2022]09号）
遵义师范学院学术新苗培养项目(遵师XM[2020]1号-10) （遵师XM[2020]1号-10）
遵义师范学院博士科研项目(遵师BS[2022]01号) （遵师BS[2022]01号）
遵义师范学院产学研项目(遵师CXY[2022]01号) （遵师CXY[2022]01号）
