系统仿真学报 ›› 2020, Vol. 32 ›› Issue (4): 638-648.doi: 10.16182/j.issn1004731x.joss.18-0288

• 仿真支撑平台/系统技术 • 上一篇    下一篇

基于深度学习序贯检验的电源车故障诊断方法

李炜1,2,3, 周丙相1,2,3, 蒋栋年1,2,3   

  1. 1. 兰州理工大学电气工程与信息工程学院,甘肃 兰州 730050;
    2. 甘肃省工业过程先进控制重点实验室,甘肃 兰州 730050;
    3. 兰州理工大学电气与控制工程国家级实验教学示范中心,甘肃 兰州 730050
  • 收稿日期:2018-05-15 修回日期:2018-09-05 出版日期:2020-04-18 发布日期:2020-04-16
  • 作者简介:李炜(1963-),女,陕西西安,硕士,教授,博导,研究方向为动态系统故障诊断与容错控制;周丙相(1992-),男,贵州盘州,硕士生,研究方向为动态系统故障诊断与可靠性评估。
  • 基金资助:
    国家自然科学基金(61763027),甘肃省自然科学基金(1610RJTA022)

Fault Diagnosis Method of Vehicle Power Supply Based on Deep Learning and Sequential Test

Li Wei1,2,3, Zhou Bingxiang1,2,3, Jiang Dongnian1,2,3   

  1. 1. College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
    2. Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou University of Technology, Lanzhou 730050, China;
    3. National Demonstration Center for Experimental Electrical and Control Engineering Education, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2018-05-15 Revised:2018-09-05 Online:2020-04-18 Published:2020-04-16

摘要: 针对电源车健康维护存在的问题,提出了一种基于长短时间记忆LSTM (Long Short Time Memory)网络与序贯概率比检验SPRT (Sequential Probability Ratio Test)融合的电源车故障诊断方法。该方法基于LSTM网络建立电源车的多变量时间序列模型,并引入SPRT方法进行自适应多样本故障诊断。经在电源车仿真系统上进行对比实验,结果表明LSTM诊断模型有更强的学习和映射能力,LSTM-SPRT融合的故障诊断方法,显著提高了电源车故障诊断的准确率和可靠性。

关键词: 长短时间记忆网络, 序贯概率比检验, 电源车仿真系统, 故障诊断

Abstract: Focus on the health maintenance of vehicle power supply, a fault diagnosis method of vehicle power supply is proposed, which is based on the long and short time memory LSTM(Long Short Time Memory) network and the sequential probability ratio test SPRT(Sequential Probability Ratio Test). Based on the LSTM network, the multivariate time series model of vehicle power supply is established, and the SPRT method is used to perform the adaptive multi-sample fault diagnosis. The experiment on the vehicle power supply simulation system shows that the LSTM diagnosis model has stronger learning and mapping capabilities, and the fault diagnosis method based on the LSTM-SPRT fusion significantly improves the accuracy and reliability of the vehicle power supply fault diagnosis.

Key words: long short-time memory network, sequential probability ratio test, vehicle power supply simulation system, fault diagnosis

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