多失效机理下船用直流电机驱动电路健康状态评估方法  

Health Status Evaluation Method for DC Motor Drive Circuits under Multiple Failure Mechanisms

作　　者：丁贝 万爱辉 牛珑昌 DING Bei;WAN Aihui;NIU Longchang(The Military Representative Office of PLA Navy Wuhan Bureau in Zhengzhou,Zhengzhou 450015,China;Chinese People's Liberation Army Unit 92730,Sanya 572000,Hainan,China;The 713 Research Institute of CSSC,Zhengzhou 450015,China;Henan Key Laboratory of Underwater Intelligence Equipment,Zhengzhou 450015,China)

机构地区：[1]海装武汉局驻郑州地区军事代表室,郑州450015 [2]中国人民解放军92730部队,海南三亚572000 [3]中国船舶集团有限公司第七一三研究所,郑州450015 [4]河南省水下智能装备重点实验室,郑州450015

出　　处：《船舶工程》2024年第S02期185-189,共5页Ship Engineering

摘　　要：通过分析常见船用直流电机驱动电路,选取能够表征驱动电路剩余寿命的关键器件及关键参数。利用已有的器件可靠性试验数据,构建剩余寿命预测算法。通过梯度下降和相似度分析方法将实测数据映射到典型失效模型中,从而预测出当前运行环境下驱动电路的剩余寿命,以此对该电路进行健康状态评估。最后选取MOSFET的△R_(ds(on))参数作为特征参数,利用现有数据对算法进行了仿真验证。By analyzing the common DC motor drive circuit of ship,this paper selects the key devices and key parameters that can characterize the remaining life of the drive circuit.Using existing experimental data of device reliability,the remaining life prediction algorithm is constructed.The measured data are mapped into the typical failure model by gradient descent and similarity analysis method,so as to predict the remaining life of the driving circuit in the current operating environment,and then evaluate the health status of the circuit.Finally,the△R_(ds(on))parameter of MOSFET was selected as the feature parameter,and the algorithm was simulated and validated using existing data.

关 键 词：剩余寿命 梯度下降 相似度分析 失效模型 

分 类 号：U665.261[交通运输工程—船舶及航道工程]