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Non-isolated DC-DC converters are the most simple and common power converter topologies and their reliability is of primary importance in many safety critical applications. Therefore, a new fault diagnostic method is presented in this paper for unidirectional non-isolated DC-DC converters using only the converters control variables without requiring extrasensors and with only a minimum computational...
This paper presents a variable speed ac drive based on a permanent magnet synchronous motor, supplied by a three-phase fault-tolerant power converter. With the aim to develop a fully automated fault-tolerant drive, special control routines were incorporated into the drive main controller that allow the control system to accomplish four important tasks, namely inverter fault diagnosis, faulty leg isolation,...
This paper presents a variable speed ac drive based on a permanent magnet synchronous motor, supplied by a three-phase fault-tolerant power converter. In order to achieve this, beyond the main routines, the control system integrates a reliable and simple algorithm for real-time diagnostics of inverter open-circuit faults. This algorithm performs an important role since it is able to detect an inverter...
The use of wind energy in urban contexts, for a number of small power applications, is of greater and greater interest. The urban environment is characterised by multidirectional winds with a wide speed range, therefore it is necessary that the generation system is capable of delivering power in a wide range of operating conditions. For this reason it is of great interest to determine which power...
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