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Two-level three phase rectifiers are widely used in industrial applications due to their superior performance. Their reliability has attracted lots of attention in recent decades. Transistor is one of the most fragile component because they suffer from voltage surge and thermic cycling. A fault diagnosis method based on current kernel density estimation for transistor open-circuit faults is proposed...
A current-based, real-time and fast symmetry-analysis-based diagnosis method with a correlation coefficient for an open-circuit fault in a voltage-source inverter is proposed. The proposed method includes three steps: data reconstruction, features extraction, fault detection and isolation. To achieve fair robustness, real-time and fast performance, sliding windows with length of a period current samples...
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