Open-switch Fault Detection and Fault Localization in PMSM Drives Through Current Waveform Analysis

Current Sensor Fault Reconstruction for PMSM Drives

This paper deals with a current sensor fault reconstruction algorithm for the torque closed-loop drive system of an interior PMSM. First, sensor faults are equated to actuator ones by a new introduced state variable. Then, in αβ coordinates, based on the motor model with active flux linkage, a current observer is constructed with a specific sliding mode equivalent control methodology to elimina...

Fault Diagnosis and Fault-Tolerant SVPWM Technique of Six-phase Converter under Open-Switch Fault

In this paper, a new open-switch fault diagnosis method is proposed for the six-phase AC-DC converter based on the difference between the phase current and the corresponding reference using an adaptive threshold. The open-switch faults are detected without any additional equipment and complicated calculations, since the proposed fault detection method is integrated with the controller required ...

Mechanical fault detection in induction motor drives through stator current monitoring - Theory and application examples

Fault Detection and Location Using IDD Waveform Analysis

| This paper investigates online testing for fault localization in CMOS circuits using IDD waveform analysis. The methods investigated in this paper are applicable both to static as well as dynamic CMOS circuits. We show that not only can IDD waveform analysis detect a number of defects that are otherwise undetectable by IDDQ testing, it can also be applied to online testing and diagnosis of CM...

Fault localization through evaluation sequences

Predicate-based statistical fault-localization techniques find fault-relevant predicates in a program by contrasting the statistics of the evaluation results of individual predicates between failed runs and successful runs. While short-circuit evaluations may occur in program executions, treating predicates as atomic units ignores this fact, masking out various types of useful statistics on dyn...