Abstract
The dual-motor system driven by five-leg voltage source inverter (FL-VSI) has been widely studied as a better fault-tolerant scheme. In this paper, a phase current reconstruction strategy based on a single current sensor is proposed to realize the phase currents reconstruction of the dual permanent magnet synchronous motors (PMSM). Firstly, the FL-VSI adopts a centralization modulation strategy to realize independent control of the two motors while expanding the speed range of the motors. Then, a pulse shift strategy applied for the dual-PMSMs system driven by FL-VSI is proposed. The phase currents can be reconstructed when two motors are running in the low modulation region, sector boundary region, or the new phase current reconstruction dead zone by the proposed method. The experimental results show that the reconstructed phase currents can always be consistent with the actual phase currents, which proves the feasibility and effectiveness of the proposed method.
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.
