Abstract:
To improve reliability, this paper examines fault diagnosis and fault-tolerant control strategies for dual three-phase permanent-magnet synchronous motor (PMSM) drives. A series of diagnostic and tolerant control methods for speed-sensor, dc-link voltage-sensor, current-sensor, open-phase, and open-switch faults have been proposed using direct torque control (DTC) with space vector modulation.
First, speed-sensor fault diagnosis and tolerant schemes estimate rotor angle speed with stator flux rotating speed. Second, the current and voltage model-based stator flux observers are used to diagnose and tolerate dc-link voltage-sensor faults.
Third, a three-step method diagnoses current-sensor faults, open-phase faults, and open-switch faults simultaneously. For current-sensor faults, a vector space decomposition-based current estimation method is proposed, and for open-phase and open-switch faults, voltage compensation is proposed. The fault diagnosis and fault-tolerant schemes were tested on a laboratory prototype.
Note: Please discuss with our team before submitting this abstract to the college. This Abstract or Synopsis varies based on student project requirements.
Did you like this final year project?
To download this project Code with thesis report and project training... Click Here
