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In this paper the transistor open-circuit fault diagnosis strategy based on the converter voltage estimation error in the voltage oriented controlled three-phase two-level AC/DC lineside converter was presented. In accordance with the developed method, for the converter voltage estimation, the signals of the duty cycles of the voltage modulator as well as simple calculations, that use the line-to-line...
In this paper the transistor open-circuit fault diagnostic technique that is based on the grid current prediction in the voltage oriented controlled three-phase two-level rectifier was discussed. For the current one-step prediction, the rectifier's dynamics equation was discretized using the Euler's method. The proposed technique allows to detect single and multiple transistor faults under the rectifying...
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