|本期目录/Table of Contents|

[1]张晓光,李正熙.无电压传感器逆变器开路故障诊断方法[J].电机与控制学报,2016,20(04):84-92.[doi:10. 15938 / j. emc. 2016. 04. 012]
 ZHANG Xiao-guang,LI Zheng-xi.Diagnostic method of open-switch faults in inverters without voltage sensor [J].,2016,20(04):84-92.[doi:10. 15938 / j. emc. 2016. 04. 012]
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无电压传感器逆变器开路故障诊断方法(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
20
期数:
2016年04
页码:
84-92
栏目:
出版日期:
2016-04-01

文章信息/Info

Title:
Diagnostic method of open-switch faults in inverters without voltage sensor
作者:
张晓光12 李正熙1
(1.北方工业大学 电气工程研究院,北京 100144; 2.北京电动车辆协同创新中心,北京 100144)
Author(s):
ZHANG Xiao-guang12 LI Zheng-xi1
 ( 1. Institute of Electrical Engineering,North China University of Technology,Beijing 100144,China; 2. Collaborative Innovation Center of Electric Vehicles in Beijing,Beijing 100144,China)
关键词:
永磁同步电机 滑模观测器 故障诊断 混合逻辑动态模型
Keywords:
permanent magnet synchronous motors sliding mode observer fault diagnosis mixed logical dynamical model
分类号:
TM 921. 5
DOI:
10. 15938 / j. emc. 2016. 04. 012
文献标志码:
A
摘要:
为了提高永磁同步电机( PMSM) 控制系统的可靠性,提出一种基于二阶滑模电压观测器和 混合逻辑动态模型( MLD) 的无电压传感器逆变器开路故障诊断方法。首先构建正常工作与故障 状态下电压源逆变器的混合逻辑动态模型,并对两种状态下电机电压的残差进行分析。通过提取 电压残差中所包含的故障信息,实现了逆变器开路故障的诊断与定位。同时,提出一种二阶滑模电 压观测器对电机电压进行实时估计,避免电压传感器所带来的增加系统复杂性与成本的问题,减少 系统潜在故障源。最后,通过实验验证了该方法的有效性。
Abstract:
To improve reliability of permanent magnet synchronous motor ( PMSM) system,a novel diag-nostic method for open-switch faults in inverters without voltage sensor using second-order sliding-mode voltage observer and Mixed Logical Dynamical ( MLD) model was proposed. The presented method was a-chieved by analysis of MLD model of the voltage source inverter under both healthy and faulty conditions.
Due to the different phase voltage values of the machine under healthy condition from open switch faults, the residuals of phase voltage include information of switch faults,which can be used to detect the faults and identified the faulty switch of the voltage source inverter. Then,a second-order sliding-mode voltage observer was proposed to estimate voltage directly to get rid of high cost and complexity as a result of volt-age sensors. This observer estimates voltage exactly without the phase lag compensation and chattering phenomena existing in the conventional observer. Finally,experimental results show the validity of the pro-posed diagnostic approach.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2015 - 07 - 01
基金项目: 国家自然科学基金( 51507004,51477003) ; 北京市自然科学基金( 4152013) ; 北京市留学人员科技活动择优资助项目; 北方工业大学科研启动基金
作者简介: 张晓光( 1985—) ,男,博士,讲师,研究方向为交流电机控制及其可靠性;
李正熙( 1955—) ,男,博士,教授,研究方向为电力电子与电力传动、控制理论与控制工程。
更新日期/Last Update: 2016-06-26