Torque Ripple Suppression of Synchronous Reluctance Motors for Electric Vehicles Based on Rotor Improvement Design

This research takes an 18.5-kW automotive synchronous reluctance motor (SynRM) with four-layer “C”-type flux barrier rotor structure as the object and studies the influence of the end position of each layer of flux barrier on torque ripple. Comparing different flux barrier end deflection schemes, the effect of flux barrier end deflection on torque ripple is studied, and the effect of deflection angle on torque ripple and electromagnetic performance is obtained. The air-gap flux density waveforms before and after the flux barrier end deflection and the radial and tangential components of its harmonics are analyzed. The action mechanism of flux barrier deflection on torque ripple and electromagnetic performance is obtained by analyzing the phase relationship between tooth harmonics and fundamental waveforms. Besides, the deflection scheme of the flux barrier end with optimal performance is given. A SynRM performance improvement method through phase cancellation between the tooth harmonics and the fundamental wave is proposed. Finally, the experimental platform is built to verify the accuracy of the simulation calculation.

[1]  N. Bianchi,et al.  Synchronous Reluctance Machines: A Comprehensive Review and Technology Comparison , 2022, Proceedings of the IEEE.

[2]  Qian Chen,et al.  Design and Optimization of a Fault Tolerant Modular Permanent Magnet Assisted Synchronous Reluctance Motor With Torque Ripple Minimization , 2021, IEEE Transactions on Industrial Electronics.

[3]  Hajime Igarashi,et al.  Topology Optimization Using Gabor Filter: Application to Synchronous Reluctance Motor , 2021, IEEE Transactions on Magnetics.

[4]  Chen Peng,et al.  A New Segmented Rotor to Mitigate Torque Ripple and Electromagnetic Vibration of Interior Permanent Magnet Machine , 2021, IEEE Transactions on Industrial Electronics.

[5]  Michael Galea,et al.  A Novel Sizing Approach for Synchronous Reluctance Machines , 2021, IEEE Transactions on Industrial Electronics.

[6]  M. Abdelkrim,et al.  Comparison Between 2D and 3D Modeling of Permanent Magnet Synchronous Motor Using FEM Simulations , 2020, 2020 17th International Multi-Conference on Systems, Signals & Devices (SSD).

[7]  Mircea Popescu,et al.  Adopting the Topology Optimization in the Design of High-Speed Synchronous Reluctance Motors for Electric Vehicles , 2020, IEEE Transactions on Industry Applications.

[8]  Yoshifumi Okamoto,et al.  Design Optimization of Synchronous Reluctance Motor for Reducing Iron Loss and Improving Torque Characteristics Using Topology Optimization Based on the Level-Set Method , 2020, IEEE Transactions on Magnetics.

[9]  Min-Fu Hsieh,et al.  An Investigation Into the Effect of PM Arrangements on PMa-SynRM Performance , 2018, IEEE Transactions on Industry Applications.

[10]  Sai Sudheer Reddy Bonthu,et al.  Optimal Torque Ripple Reduction Technique for Outer Rotor Permanent Magnet Synchronous Reluctance Motors , 2018, IEEE Transactions on Energy Conversion.

[11]  Nicola Bianchi,et al.  Synchronous Reluctance Machine Optimization for High-Speed Applications , 2018, IEEE Transactions on Energy Conversion.

[12]  Hossein Azizi Moghaddam,et al.  Design Optimization of Transversely Laminated Synchronous Reluctance Machine for Flywheel Energy Storage System Using Response Surface Methodology , 2017, IEEE Transactions on Industrial Electronics.

[13]  Christopher M Donaghy-Spargo,et al.  Electromagnetic–Mechanical Design of Synchronous Reluctance Rotors With Fine Features , 2017, IEEE Transactions on Magnetics.

[14]  Ju Lee,et al.  Design of Permanent Magnet-Assisted Synchronous Reluctance Motor for Maximized Back-EMF and Torque Ripple Reduction , 2017, IEEE Transactions on Magnetics.

[15]  Adem Dalcali,et al.  Comparison of 2D and 3D magnetic field analysis of single-phase shaded pole induction motors , 2016 .

[16]  Maarten J. Kamper,et al.  Asymmetric Flux Barrier and Skew Design Optimization of Reluctance Synchronous Machines , 2015, IEEE Transactions on Industry Applications.

[17]  Nicola Bianchi,et al.  Sensitivity analysis of torque ripple reduction of synchronous reluctance and interior PM motors , 2013, 2013 IEEE Energy Conversion Congress and Exposition.

[18]  Francis Piriou,et al.  Comparison between two approaches to model induction machines with skewed slots , 2000 .

[19]  Yanping Liang,et al.  Analysis on Circulating Current Loss in the Formed Winding of Permanent Magnet Synchronous Motors , 2021, IEEE Access.

[20]  Gilbert Hock Beng Foo,et al.  Overmodulation of Constant-Switching-Frequency-Based DTC for Reluctance Synchronous Motors Incorporating Field-Weakening Operation , 2019, IEEE Transactions on Industrial Electronics.

[21]  Sarmiza Pencea,et al.  China , 2019, The Statesman’s Yearbook 2019.

[22]  Silverio Bolognani,et al.  Model Sensitivity of Fundamental-Frequency-Based Position Estimators for Sensorless PM and Reluctance Synchronous Motor Drives , 2018, IEEE Transactions on Industrial Electronics.

[23]  Changliang Xia,et al.  Design and Analysis for Torque Ripple Reduction in Synchronous Reluctance Machine , 2018, IEEE Transactions on Magnetics.