Title :
A fast and simple method to detect short circuit fault in cascaded H-bridge multilevel inverter
Author :
Ouni, Saeed ; Rodriguez, Jose ; Shahbazi, Mahmoud ; Zolghadri, MohammadReza ; Oraee, Hashem ; Lezana, Pablo ; Ulloa Schmeisser, Andres
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
Fault detection is one of the most important tasks in fault tolerant converters. In this paper, a new method is proposed to detect the faulty cell in a cascaded H-bridge multilevel inverter. The detection technique is based on comparison of the output voltage with reference voltage made by using switching control pulses and DC-Link voltage. Because of the simplicity of this method, it is possible to use a single field-programmable gate array (FPGA) to implement this method and inverter control. The simulation and experimental results confirm the effectiveness of the proposed fault detection technique.
Keywords :
cascade networks; fault diagnosis; fault tolerance; field programmable gate arrays; invertors; DC-link voltage; FPGA; cascaded H-bridge multilevel inverter; fault detection technique; fault tolerant converter; field programmable gate array; inverter control; reference voltage; short circuit fault; switching control pulse; Circuit faults; Fault detection; Image edge detection; Inverters; Switches; Voltage control; Voltage measurement; Cascaded H-Bridge Inverter; Fault Detection; field-programmable gate array (FPGA);
Conference_Titel :
Industrial Technology (ICIT), 2015 IEEE International Conference on
Conference_Location :
Seville
DOI :
10.1109/ICIT.2015.7125206
