The Faults Diagnostic Analysis for the Power Converter in Switched Reluctance Generator Based on the RMS of Freewheeling Current and Phase Current

Abstract

Abstract:

The power converter linking controller to switched reluctance generator are becoming the important part in energy transmission. However, the open-circuit failure of the switch transistor will lead to phase-deficient operation of the system and low power output of the generator;Short circuit fault also results in the high current during the operation and even leads to the burning of the devices.Therefore,a fault diagnosis method based on the freewheeling current and phase current is proposed in this paper.Through logical judgment of the characteristic valuesextracted by the freewheeling current and phase current,the fault detection of power converter switching devices can be achieved,the fault components even can be located,and the logical judgment part of the threshold formula will be given as well.The feasibility and effectiveness of the proposed fault diagnosis algorithm are verified by the simulation experiments on Simulink platform and physical experiments.

Key words: Switched reluctance generator, fault diagnosis, power converter, freewheeling current, phase current

CLC Number:

TM315

Yi Lingzhi,Sui Yongbo,Zhu Guanghui,Gong Huguang,Chen Renkai. The Faults Diagnostic Analysis for the Power Converter in Switched Reluctance Generator Based on the RMS of Freewheeling Current and Phase Current[J]. Journal of Electrical Engineering, 2015, 10(10): 52-58.

Figures/Tables 12

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

References 10

[1]	刘震, 林辉, 司利云 . 开关磁阻发电系统的故障分析及仿真[J]. 电力系统及其自动化学报, 2005(5):7-11.
	Liu Zhen, Lin Hui, Si Liyun . Fault analysis and simulation for the switched reluctance generator system[J]. Proceedings of the CSU-EPSA, 2005(5):7-11.
[2]	Radun A V, Ferreira C A, Richter E . Two-channel switched reluctance starter/generator results[J]. IEEE Transactions on Industry Applications, 1998,34(5):1026-1034. doi: 10.1109/28.720442
[3]	周强, 严加根, 刘闯 , 等. 航空开关磁阻发电机双通道容错性能研究[J]. 航空学报, 2007(5):1146-1152.
	Zhou Qiang, Yan Jiagen, Liu Chuang , et al. Research on fault-tolerant performance of dual-channel of aviation switched reluctance generator[J]. Acta Aeronautica et Astronautica Sinica, 2007(5):1146-1152.
[4]	杨涵轶, 朱学忠 . 双通道开关磁阻发电机建模及故障仿真研究[J]. 机电工程, 2014(1):86-89. doi: 10.1016/j.ijpharm.2019.118994 pmid: 31893543
	Yang Hanyi, Zhu Xuezhong . Modeling and fault simulation of dual-channel switched reluctance generator[J]. Journal of Mechanical & Electrical Engineering, 2014(1):86-89. doi: 10.1016/j.ijpharm.2019.118994 pmid: 31893543
[5]	Gameiro N S, Marques Cardoso A J. A new method for power converter fault diagnosis in SRM drives[J]. IEEE Transactions on Industry Applications, 2012,48(2):653-662. doi: 10.1109/TIA.2011.2180876
[6]	Marques Jorge F, Estima Jorge O, Gameiro Natalia S, et al. A new diagnostic technique for real-time diagnosis of power converter faults in switched reluctance motor drives [C]. Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition, 2013: 1192-1198.
[7]	Marques J F, Estima J O, Gameiro N S , et al. A new diagnostic technique for real-time diagnosis of power converter faults in switched reluctance motor drives[J]. IEEE Transactions on Industry Applications, 2014,50(3):1854-1860. doi: 10.1109/TIA.2013.2279898
[8]	Gameiro N S, Cardoso A J M. Power converter fault diagnosis in SRM drives based on the DC Bus current analysis[J]. XIX International Conference on Electrical Machines, 2010(1):6-8.
[9]	Wei Wang, Fahimi B . Fault tolerant control of adjustable speed switched reluctance motor drives[J]. IEEE Workshop on Electrical Machines Design Control and Diagnosis, 2013: 130-137.
[10]	基于续电流和相电流有效值开关磁阻发电机故障诊断软件V1.0[Z].