Abstract
This paper presents a new sensorless vector control method for permanent-magnet synchronous motors (PMSMs) that employs discrete-time high-frequency voltage injection. The frequency range of the injected voltage is almost the same as that of the pulse width modulation (PWM) carrier of the voltage command. This allows high-speed phase estimation and a high-performance drive, and possibly low acoustic noise caused by the injected voltage. The high-frequency current corresponding to the injected voltage is analyzed in discrete time. Conventional phase estimation methods that employ continuous-time voltage injection are reconstructed by means of the analyses. The reconstructed methods are characterized by high-speed phase estimation, high-performance drive, and high robustness against motor parameter variation. The usefulness of the proposed method is verified through extensive experiments.
Sign-in/Register to access full text options 
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.
