Open Circuit Fault Diagnosis Strategy for Switch of Three Level Inverter

doi:10.16182/j.issn1004731x.joss.201808029

Abstract

Abstract: Fault diagnosis of switch is the premise of reliable operation of three-level-inverter under the fault of the switch. Taking simple open circuit fault of the diode neutral point clamped (NPC) three level inverter as an example, the open circuit fault diagnosis method based on the combination of online and offline diagnoses is proposed. The fault phase is detected by the mean value of the bridge arm phase voltages. In the time domain, the fault switch tube is diagnosed by the maximum and minimum values of the load phase voltages. In the frequency domain, the amplitude of the fault signal is extracted by the fast Fourier transform (FFT), and the open circuit fault diagnosis of the NPC three-level-inverter is realized by using the BP neural network. Simulation results show that this method can greatly reduce the workload and improve the accuracy of fault diagnosis.

Key words: NPC three-level-inverter, open circuit faults of switches, bridge arm phase voltages mean value, load phase voltages maximum and minimum values, FFT, BP neural network, fault diagnosis

CLC Number:

TM464

Shen Yanxia, Miao Beibei. Open Circuit Fault Diagnosis Strategy for Switch of Three Level Inverter[J]. Journal of System Simulation, 2018, 30(8): 3058-3065.

References

[1] Jiangbiao He, Nabeel A O.Demerdash. Diagnosis of Open-Circuit Switch Faults in Multilevel Active-NPC Inverters[C]// IEEE Transportation Electrification Conference. Beijing, China: IEEE, 2014: 8-14.
[2] 康利平. 光伏三电平逆变器的故障建模及其诊断方法研究[D]. 南昌: 南昌大学, 2015: 1-77.
Liping Kang.Research on Fault modeling and diagnosis method of photovoltaic three level inverter[D]. Nanchang: Nanchang University, 2015: 1-77.
[3] Ting Yang, Haibo Pen, Zhaoxia Wang.Feature Knowledge Based Fault Detection of Induction Motors Through the Analysis of Stator Current Data[J]. IEEE Transactions on Instrumentation and Measurement (S0018-9456), 2016, 65(3): 549-558.
[4] Tianzhen Wang, Hao Xu, Jingang Han.Cascaded H-Bridge Multilevel Inverter System Fault Diagnosis Using a PCA and Multiclass Relevance Vector Machine Approach[J]. IEEE Transactions on Power Electronics (S0885-8993), 2015, 30(12): 7006-7018.
[5] Hao Xu, Tianzhen Wang, Jian Zhang, et al.RPCA-SVM Fault Diagnosis Strategy of Cascaded H-bridge Multilevel Inverters[C]//2014 First International Conference on Green Energy. Beijing, China: IEEE, 2014: 164-169.
[6] MohammadRezaVazifeh, FarzanehAbbasi Hossein Abadi. Fault Diagnosis based on Wavelet Entropy Feature Extraction and Information Fusion[C]//2015 2nd International Conference on Information Science and Control Engineering. Shanghai, China: IEEE, 2015: 234-238.
[7] Feng Wu, Jin Zhao.A Real-Time Multiple Open-Circuit Fault Diagnosis Method in Voltage-Source-Inverter Fed Vector Controlled Drives[J]. IEEE Transactions on Power Electronics (S0885-8993), 2016, 31(2): 1425-1437.
[8] Bin Gou, Xinglai Ge, Shunliang Wang, 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 (S0885-8993), 2016, 31(5): 3816-3826.
[9] Joachim Druant, Thomas Vyncke, Frederik De Belie, et al.Adding Inverter Fault Detection to Model-Based Predictive Control for Flying-Capacitor Inverters[J]. IEEE Transactions on Industrial Electronics (S0278-0046), 2015, 62(4): 2054-2062.
[10] Feng Wu, Jin Zhao, Yang Liu.Symmetry-analysis-based diagnosis method with correlation coefficients for open-circuit fault in inverter[J]. Electronics Letters (S0013-5194), 2015, 51(21): 1688-1690.
[11] Ehsan Jamshidpour, Philippe Poure, EskandarGholipour, et al. Single-Switch DC-DC Converter With Fault-Tolerant Capability Under Open-and Short-Circuit Switch Failures[J]. IEEE Transactions on Power Electronics (S0885-8993), 2015, 30(5): 2703-2712.
[12] June-Seok Lee, Kyo-Beum Lee.An Open-Switch Fault Detection Method and Tolerance Controls Based on SVM in a Grid-Connected T-Type Rectifier With Unity Power Factor[J]. IEEE Transactions on Industrial Electronics (S0278-0046), 2014, 61(12): 7092-7103.
[13] Shu Cheng, Ya-ting Chen, Tian-jian Yu, et al. A Novel Diagnostic Technique for Open-Circuited Faults of Inverters Based on Output Line-to-Line Voltage Model[J].IEEE Transactions on Industrial Electronics (S0278-0046), 2016, 11(9): 1109-1120.
[14] Yuxi Wang, Zhan Li, Hao Ma.Comparison of Two Diagnosis Methods Based on Switching Voltage Pattern for IGBTs Open-Circuit Faults in Voltage-Source Inverters[C]//2015 IEEE 24th International Symposium on Industrial Electronics (ISIE). Rio de Janeiro, Brazil: IEEE, 2015: 257-262.
[15] Cui Chen, Danjiang Chen, Yinzhong Ye.The Neural Network-based Diagnostic Method for Atypical Faults in NPC Three-Level Inverter[C]//IEEE 25th Chinese Control and Decision Conference. Guiyang, China: IEEE, 2013: 4740-4745.