Sensorless Speed Control of Independent Dual-PMSM Drives Fed by a Five-Leg Inverter

• Main Authors: Mat lazi, Jurifa, Ibrahim, Zulkifilie, Yusoff, Marianna, Mat Isa, Siti Noormiza, Mohd Yaacop, Nurazlin, Abu Hasim, Ahmad Shukri
• Format: Article
• Language: English
• Published: 2012
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utem.edu.my/id/eprint/11279/1/Sensorless_Speed_Control_of_Independent_Dual-PMSM_Drives_Fed_by_a_Five_Leg_inverter.pdf; http://eprints.utem.edu.my/id/eprint/11279/

Various control algorithms have been investigated for speed sensorless of an AC motors using three-leg inverter by other researchers. Unfortunately, these sensorless techniques are mainly focus on single motor controlled drive with a single three-le inverter. Resent research has shown that the dual-motor drives can be independently controlled by using a Five-Leg Inverter (FLI). This paper introduces the new control strategy based on speed sensorless technique of independent dual- Permanent Magnet Synchronous Motor (PMSM) drives using FLI. The simulation is implemented in MATLAB/Simulink to evaluate the overall motor drive performance. The transient behavior is examined for various speed commands, load disturbance, inertia and during zero speed operation, so that a thorough comparison is enable. The simulation results also proved that the performance characteristics of sensorless dual-PMSM are almost similar to the sensory system except for the startup condition. For future research, there is a need to emphasize on the start-up method for sensorless dual-PMSM drives.