Enhanced Three-Phase Inverter Faults Detection And Diagnosis Approach - Design And Experimental Evaluation

Abstract

<span lang="EN-US">Efficiency, reliability, high power quality and continuous operation are important aspects in electric vehicle attraction system. Therefore, quick fault detection, isolation and enhanced fault-tolerant control for open-switches faults in inverter driving systems become more and more required in this filed. However, fault detection and localization algorithms have been known to have many performance limitations due to speed variations such as wrong decision making of fault occurrence. Those weaknesses are investigated and solved in this paper using currents magnitudes fault indices, current direct component fault indices and a decision system. A simulation model and experimental setup are utilized to validate the proposed concept. Many simulation and experimental results are carried out to show the effectiveness of the proposed fault detection approach.</span>

Intelligent condition monitoring of variable speed wind energy conversion systems based on decentralized sliding mode observer

“…The variable speed WECS can be threatened by anomalies which may cause deterioration of its performances or even lead a complete stop of the installation [3]. The condition monitoring status has become essential to ensure its operational safety and availability.…”