Identification of the fault leg in a three phase voltage source inverter
نویسندگان
چکیده
Nowadays, inverters are power electronics devices used in the renewable energy conversion systems and also to fed induction motors, therefore the continuity of service of power converter has been a major concern. This paper presents a new approach of open circuit fault detection in a pulse width modulation three phase voltage source inverter. The fault occurrence detection was based on the standard deviation of the measured current vector and the localization of the fault leg where the open circuit fault occurred was achieved analyzing the current vector in d-q frame system. The reliability of this technique was confirmed in a real time simulation. Keywords— inverter, IGBT, power converter, induction motor,
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