Abstract
This article presents an improved direct torque control strategy based on proportional-integral controllers applied to an asynchronous cage motor. The main objective of this study is to improve the system performance by reducing the electromagnetic torque and stator flux ripples while adjusting the currents shape by optimizing the total harmonic distortion, and this by supplying the motor with a diode clamped five-level inverter using the phase opposition disposition technique. Furthermore, the use of an observer employing the stator flux based model reference adaptive system allows improving the control performance by using a sensorless algorithm to obtain an accurate estimation, therefore, increase the system reliability. A comparative study between the five-level inverter installation with the same system and the same control strategy but another two different topologies of inverters; such as the NPC three-level inverter and the conventional two-level inverter has been made under MATLAB/SIMULINK to validate the efficiency of the proposed installation under various tracking and robustness tests.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
