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This paper deals with a simple, robust and real-time technique for single and simultaneous insulated gate bipolar transistor (IGBT) open circuit fault diagnostic in sensorless vector controlled induction motor (IM) drives. A full sliding mode observer (SMO) is used for speed, flux and stator currents estimation and simultaneously open switch fault diagnostic. The proposed open switch fault detection...
In this paper, direct torque control (DTC) of a three phase permanent magnet synchronous motor (PMSM) one switch open-circuit fault is described. An extra inverter leg is employed to provide the current path during the fault operation.
This paper describes a remedial strategy against open-circuit fault occurring in the inverter switching devices of a sensorless induction motor drive. These applications are much more sensitive to inverter faults that the conventional sensored systems. Hence, if the fault is not quickly detected and compensated, it can leads to hard failure and to disconnecting the system. A way of maintaining its...
This paper presents the control of the speed problem for a Sensor-less Direct Torque Control (DTC) of permanent magnet synchronous motor (PMSM), using the Extended Kalman Filter algorithm (EKF) by only measuring the phase voltages and motor currents. Also, due to an angle modification scheme with error tracking, the Sensor-less drive system is robust to parameter variations. Simulation result is provided...
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