Current Energization Method for Suppressing Torque Ripple in Permanent Magnet Synchronous Motors Including High-Speed Operation Beyond the Feedback Current Controller Bandwidth

Key Points

• The aim is to develop a method to suppress torque ripple in permanent magnet synchronous motors, particularly during high-speed operations.
• Proposed a current energization method to suppress torque ripple
• Superimposed a cancellation current onto the feedback current controller
• Applied a compensation voltage for accurate current injection at high frequencies
• The proposed method effectively reduces torque ripple in permanent magnet synchronous motors
• Experimental results support the efficiency of the current energization method

Abstract