[1]谢 东,葛兴来.并联全桥隔离DC-DC 变换器开路故障诊断[J].控制与信息技术(原大功率变流技术),2017,(04):0.[doi:10.13889/j.issn.2095-3631.2017.04.014]
 XIE Dong,GE Xinglai.Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter[J].High Power Converter Technology,2017,(04):0.[doi:10.13889/j.issn.2095-3631.2017.04.014]
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并联全桥隔离DC-DC 变换器开路故障诊断()
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《控制与信息技术》(原《大功率变流技术》)[ISSN:2095-3631/CN:43-1486/U]

卷:
期数:
2017年04期
页码:
0
栏目:
“电力电子变压器”专刊
出版日期:
2017-08-05

文章信息/Info

Title:
Open-circuit Fault Diagnosis for Parallel Operated Full-bridge Isolated DC-DC Converter
文章编号:
2095-3631(2017)04-0075-06
作者:
谢 东 葛兴来
(西南交通大学电气工程学院,四川 成都 610031)
Author(s):
XIE Dong GE Xinglai
(School of Electrical Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China)
关键词:
并联全桥隔离DC-DC 变换器 IGBT 开路故障 混合逻辑动态模型 状态估计模型 残差
Keywords:
parallel operated full-bridge isolated DC-DC converter IGBT open-circuit fault mixed logic dynamic (MLD) model state estimator model residual
分类号:
TM46
DOI:
10.13889/j.issn.2095-3631.2017.04.014
文献标志码:
A
摘要:
单相电力电子变压器是实现铁路牵引系统高效化、轻量化的有力选择,其中并联全桥隔离DC-DC 变换器是保证稳定直流输出的重要组成部分。为保证DC-DC 变换器的可靠运行,文章针对其单个IGBT 开路故障,提出了一种基于状态估计的单管开路故障诊断方案,即通过建立系统的混合逻辑动态模型和状态估计模型,对DC-DC 变换器级在正常和单管开路故障下的估计残差进行分析,根据残差包含的故障信息实现单管开路故障诊断。最后,基于RT-LAB 半实物实验平台,对提出的故障诊断方案进行验证,仿真实验结果表明,该诊断方法能在IGBT 发生开路故障后的4 个开关周期内实现故障开关的有效定位。
Abstract:
Single-phase power electronic traction transformer (PETT) is the power device to realize higher efficiency and reduction of weight in railway traction system, and parallel operated full-bridge isolated DC-DC converters are an important part of single-phase PETT to realize a stable DC-voltage output. In order to ensure the reliability of DC-DC level, in this paper, an open-circuit fault diagnosis method based on state estimator was proposed for open-circuit fault of a single IGBT. Through establishment of mixed logic dynamic (MLD) model and state estimator model, estimator residuals of the DC-DC level were analyzed under normal and faulty conditions. According to the residuals including information of the fault, fault diagnosis was achieved. Finally, the proposed fault diagnosis method was verified in a hardware-in-loop (HIL) experimental platform with RT-LAB simulator. Experimental results show that the diagnosis method can effectively locate the fault switch in four switching cycles after open-circuit fault of IGBT.

参考文献/References:

[1]DUJIC D, KIEFEMDORF F, CANALES F, et al. Power electronic traction transformer technology[C]// Power Electronics and Motion Control Conference. Harbin: IEEE, 2012:636-642.
[2]DUJIC D, ZHAO C, MESTER A, et al. Power electronic traction transformer-low voltage prototype[J]. IEEE Transactions on Power Electronics, 2013, 28(12):5522-5534.
[3]GU C, ZHENG Z, XU L, et al. Modeling and Control of a Multiport Power Electronic Transformer (PET) for Electric Traction Applications[J]. IEEE Transactions on Power Electronics, 2015, 31(2):915-927.
[4]AIRABELLA A M, OQQIER G G, PIRIS-BOTALLA L E, et al. Semi-conductors faults analysis in dual active bridge DC–DC converter[J]. Iet Power Electronics, 2016, 9(6):1103-1110.
[5]PEI X, NIE S, CHEN Y, et al. Open-Circuit Fault Diagnosis and Fault-Tolerant Strategies for Full-Bridge DC–DC Converters[J]. IEEE Transactions on Power Electronics, 2012, 27(5):2550-2565.
[6]张翼翔. 基于隐马尔科夫模型的DC/DC 变换器故障诊断方法研究[D]. 成都:西南交通大学,2015.
[7]刘佳. 基于混杂系统模型的电力电子电路故障诊断[D]. 天津:天津大学,2010.
[8]GOU B, GE X, WANG S, et al. An open-switch fault diagnosis method for single-phase PWM rectifier using a model-based approach in high-speed railway electrical traction drive system[J]. IEEE Transactions on Power Electronics, 2016, 31(5):3816-3826.
[9]GE X, PU J K, GOU B, et al. An Open-Circuit Fault Diagnosis Approach for Single-Phase Three-Level Neutral-Point-Clamped Converters[J]. IEEE Transactions on Power Electronics, 2017, 99:1-1.
[10]ALMALEKI M, WHEELER P, CLARE J. Sliding Mode Observation of capacitor voltage in multilevel power converters[C]// Iet International Conference on Power Electronics, Machines and Drives. Brighton: IET, 2010:1-6

备注/Memo

备注/Memo:
收稿日期:2017-06-26
作者简介:谢东(1995-),男,研究方向为故障诊断与容错控制。
基金项目:国家自然科学基金项目(51677156)
更新日期/Last Update: 2017-08-21