FPGA-Based Fast Detection With Reduced Sensor Count for a Fault-Tolerant Three-Phase Converter

Abstract

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Open-circuit switch fault tolerant wind energy conversion system based on six/five-leg reconfigurable converter

“…For open-circuit switch fault detection, the method of [16,17] is used throughout this study. In this method, fault in each leg is diagnosed by comparing the measured and estimated pole voltages.…”

“…A sliding mode observer is used for fault detection in the multicell converter presented in [15]. A very fast FPGA-based fault detection using a "time and voltage criterion" is presented in [16,17]. It is capable of detecting the fault and its location in a few tens of microseconds.…”

“…In fact, FPGA can run these tasks very quickly, thanks to its parallel architecture. Therefore it appears to be a very suitable choice for implementation of the real-time fault detection schemes [17].…”

FPGA Based Robust Open Transistor Fault Diagnosis and Fault Tolerant Sliding Mode Control of Five-Phase PM Motor Drives

“…Both methods have been investigated in the literature. The voltage based methods are fast, simple and efficient [7]- [10]. Detection times of less than 10 μs have been presented in the literature [7], [8].…”

“…The voltage based methods are fast, simple and efficient [7]- [10]. Detection times of less than 10 μs have been presented in the literature [7], [8]. However, the presented methods are not cost effective, since it is necessary to use extra sensors in the power converters.…”