Abstract
Torque pulsations are one of the major concerns in permanent magnet synchronous machines (PMSMs). Torque pulsations can be mitigated by proper machine design and/or by control. Independently of the means being used, precise measurement of torque pulsation is highly desirable for the validation and improvement of machine designs and control strategies. This article proposes a non-invasive, wireless vibration measurement system aimed to provide precise estimates of torque pulsations. The system is mounted on the rotor shaft of the PMSM, i.e., there is no mechanical coupling, and allows on-line measurement without interfering with the normal operation of the machine.
Highlights
Permanent magnet synchronous machines (PMSMs) provide high efficiency, high torque and power density and good dynamic response compared to other types of electrical machines [1]-[4]
This paper presents a wireless, shaft-mounted torque pulsation measurement system [30]
To assess the accuracy of the torque pulsations measurement system, output torque of the test machine has been measured with an Interface Torque transducer [20] (T5 model, 12-Bit resolution, 10kHz, ±100Nm)
Summary
Permanent magnet synchronous machines (PMSMs) provide high efficiency, high torque and power density and good dynamic response compared to other types of electrical machines [1]-[4]. Existing torque pulsation measurement systems include: torque transducers based on strain gauges [19]-[23], [25]-[28], Ferraris sensor [19], piezoelectric accelerometers [19], MEMs accelerometers [29], acceleration estimation using rotary encoder [19] and a weight variation of a beam attached to the rotor [24]. All these methods suffer from some limitations.
Sign-in/Register to view highlights & summary 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.
