Fault Diagnosis and Fault Tolerant Control for APF Based on T-Type Inverter

被引：0
|
作者：
Zhang J. [1 ]
Geng Z. [1 ]
Xu S. [1 ]
机构：
[1] School of Electrical Engineering, Southeast University, Nanjing, 210096, Jiangsu Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Active power filter (APF); Fault diagnosis; Fault-tolerant control; Space vector pulse width modulation (SVPWM); T-type three-level;
D O I：
10.13334/j.0258-8013.pcsee.171714
中图分类号：
学科分类号：
摘要：
Inverter is an important equipment to improve power quality. The inverter is the core component of active power filter (APF), which is the basis of ensuring the stable operation of the APF. The T-type three-level inverter has been widely used in active power filter because of its advantages of low circuit loss and low distortion. In this paper, the operation state of open-circuit fault in power device of T-type three-level inverter was analyzed, space vector pulse width modulation (SVPWM) and the output current of inverter were used to detect the open-circuit fault of power device in the inverter. Combined with the operating characteristics of APF, the redundancy of T-type three-level inverter topology and three-level SVPWM and vector synthesis were used to propose one kind of fault-tolerant operation strategy for switch device in vertical bridge arm and two kinds of fault-tolerant operation strategy for switch device in horizontal bridge arm, respectively. Finally, the simulation model and the experimental platform were established to verify the proposed fault-tolerance strategy. The results of the simulation and experiments proved the effectiveness of the fault-tolerance strategy. © 2019 Chin. Soc. for Elec. Eng.
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页码：245 / 255
页数：10
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