Factors Influencing Active Torque Ripple Compensation in PMSM/IPMSM Drives
Abstract: In this tutorial the main goal is to go in detail to understand various factors that need to be considered to do an efficient active torque ripple cancellation for a PMSM/IPMSM drive at all operating conditions. In this tutorial we will take a 12V 1-2 KWPMSM/IPMSM machine for the case study and analyze how different sensor error and non-linearities affect the torque ripple at different operating conditions. The tutorial will also deal with how to develop high bandwidth current loop and also various challenges in regards to current control of PMSM drive with respect to doing effective torque ripple cancellation at all operating conditions. Finally will conclude with various key factors that needs to be considered in selection of the motor position and current sensor in order to achieve effective active torque ripple cancellation for mass production
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- Concordia University, SGW Campus 1515 Saint-Catherine St W, EV Building, Room number: EV3.309.
- Montreal, Quebec
- Canada H3G 1S6
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- Co-sponsored by R70009 - Montreal Section
- Starts 16 July 2025 12:00 AM UTC
- Ends 17 July 2025 04:00 AM UTC
- No Admission Charge
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Raja
Factors Influencing Active Torque Ripple Compensation in PMSM/IPMSM Drives
Abstract: In this tutorial the main goal is to go in detail to understand various factors that need to be considered to do an efficient active torque ripple cancellation for a PMSM/IPMSM drive at all operating conditions. In this tutorial we will take a 12V 1-2 KWPMSM/IPMSM machine for the case study and analyze how different sensor error and non-linearities affect the torque ripple at different operating conditions. The tutorial will also deal with how to develop high bandwidth current loop and also various challenges in regards to current control of PMSM drive with respect to doing effective torque ripple cancellation at all operating conditions. Finally will conclude with various key factors that needs to be considered in selection of the motor position and current sensor in order to achieve effective active torque ripple cancellation for mass production
Biography:
Dr. Raja V. Ramakrishnan (M’11) received his B.Sc. from Amrita Institute of Technology, India
(2003), and his M.S. in Electrical Engineering from the New Jersey Institute of Technology
(2005). He earned his Ph.D. in Automotive Systems Engineering from the University of
Michigan–Dearborn.
From 2004 to 2013, he worked as a Senior Electrical Engineer at Delphi Steering and Nexteer
Automotive. He currently serves as Chief Scientist at Halla Mechatronics, where he leads
motor drive development, vehicle dynamics control, safety systems, and software development
for various automotive applications.
Dr. Ramakrishnan was an IEEE IAS Distinguished Lecturer (2003–2004) and currently serves
as an IEEE IAS Prominent Lecturer (2024–2025). His research interests include electrical
machines and variable-speed drives, with a focus on sensorless motor control.
His recent work involves developing redundant motor drive architectures for steering systems,
ensuring continued performance even in the event of a single-point failure. He has also served
as Associate Editor for both the IEEE Industrial Drives Committee and the IEEE Transportation
Systems Committee.
Address:Canada