Switch and Diode Fault Diagnosis in Nonisolated DC–DC Converters Using Diode Voltage Signature
Abstract: Reliable operation of dc-dc converters is vital for many applications. An appropriate converter monitoring scheme is required for fault detection and adoption of effective remedial strategies. Switch faults and degradation of electrolytic capacitor account for a considerable portion of the converter failures. Although rate of diode failures is not remarkable, power switch may be damaged in case of diode fault occurrence. Furthermore, for applications in which a redundant switch is employed as a remedy, it will be also endangered by diode failures if diode fault detection has not been considered in the monitoring scheme. Therefore, diode condition monitoring improves reliability of the converter monitoring approaches. This paper presents a simple diagnosis technique for open-circuit and short-circuit faults of the switch and diode in nonisolated dc-dc converters. The technique only employs diode voltage as the detection signature. The diode voltage and gate driver signal are processed in a simple logic circuit to generate some indicators for switch and diode fault diagnosis. Basis of the technique is discussed in detail. Several experiments have been carried out on buck, boost, and buck-boost converters. The results confirm the technique capability for switch and diode fault diagnosis in less than one switching cycle.
VLSI Projects,IEEE VLSI Projects,latest vlsi projects,2018 VLSI Projects,VLSI Projects in Bangalore,VLSI projects institutes in bangalore,VLSI live projects in bangalore,VLSI academic projects,VLSI project centres,M.Tech VLSI projects in bangalore,M Tech VLSI projects institutes in bangalore,FPGA projects in bangalore,ieee vlsi,vlsi ieee papers,mtech vlsi,fpga projects using vhdl,mini project on image processing,vlsi paper,vlsi ieee papers,ieee project papers,vlsi institutes in bangalore,ofdm projects,vlsi projects using vhdl,projects based on digital signal processing,vhdl based projects,latest vlsi projects,vlsi project institutes in bangalore,VLSI Project,vlsiproject,vlsi project institute in bangalore,vlsi project idea,idea in vlsiproject,idea in vlsiprojects,idea in vlsi project,idea in vlsiprojects,M.Tech VLSI Projects in Bangalore,M.Tech FPGA Projects in Bangalore,ECE VLSI Projects in Bangalore,VLSI Academic Projects in Bangalore,VLSI Live Projects in Bangalore,VLSI Real Time Projects in Bangalore,VLSI Projects for MTech 2018,VLSI Projects for MTech 2018,VLSI Projects for MTech in Bangalore,FPGA based Projects for M.Tech,download 2018 VLSI Project list,VLSI project centre,VLSI academic projects,vlsi ieee papers,new vlsi projects,mtech vlsi,fpga projects using vhdl,mini project on image processing,vlsi paper,vlsi ieee papers,ieee project papers,vlsi institutes in bangalore,ofdm projects,vlsi projects using vhdl,projects based on digital signal processing,vhdl based projects,latest vlsi projects,vlsi project institute in bangalore,vlsi project idea,idea in vlsiproject,idea in vlsiprojects,idea in vlsi project,idea in vlsiprojects
del.icio.us
Google