The Current Harmonics Elimination Control Strategy for Six-Leg Three-Phase Permanent Magnet Synchronous Motor Drives

This paper focuses on the analysis and development of low-current harmonics for a six-leg, three-phase inverter for permanent-magnet synchronous motor (PMSM) drives. Each phase of the PMSM is operating independently, the low-order harmonics appear in the back electromotive forces (EMFs) and currents. In this case, the standard vector control cannot handle the current harmonics. This harmonic enhances the current and causes the torque ripple. This paper presents a zero-axis current estimator auxiliary vector control method to compensate for three multiples of the voltage harmonic. This method can eliminate the zero-axis current. A prototype PMSM system was built using the TMS302F28335 digital signal processor. And the computer simulation and control method were completed. When the system operated at half load, the total harmonic distortion of current decreased from 20.89% to 4.42%. At full load, the total harmonic distortion of current decreased from 8.43% to 1.71%.

[1]  Russel J. Kerkman,et al.  Pulse based dead time compensator for PWM voltage inverters , 1995, Proceedings of IECON '95 - 21st Annual Conference on IEEE Industrial Electronics.

[2]  Xuhui Wen,et al.  Multiphase Permanent Magnet Motor Drive System Based on A Novel Multiphase SVPWM , 2006, 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference.

[3]  Seung-Yub Park,et al.  Compensation of Dead-Time Effects Based on Adaptive Harmonic Filtering in the Vector-Controlled AC Motor Drives , 2007, IEEE Transactions on Industrial Electronics.

[4]  P. Mattavelli,et al.  Torque-ripple reduction in PM synchronous motor drives using repetitive current control , 2005, IEEE Transactions on Power Electronics.

[5]  H. Fujimoto,et al.  Harmonic current suppression method of SPM motor based on repetitive perfect tracking control with speed variation , 2008, 2008 34th Annual Conference of IEEE Industrial Electronics.

[6]  Fei Yu,et al.  The direct torque control of multiphase permanent magnet synchronous motor based on low harmonic space vector PWM , 2008, 2008 IEEE International Conference on Industrial Technology.

[7]  B Mirafzal,et al.  Fault-Tolerant Technique for Δ-Connected AC-Motor Drives , 2011, IEEE Transactions on Energy Conversion.

[8]  Sangsun Kim.  Harmonic reference current generation for unbalanced nonlinear loads , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[9]  R. L. de Araujo Ribeiro,et al.  A Robust Adaptive Control Strategy of Active Power Filters for Power-Factor Correction, Harmonic Compensation, and Balancing of Nonlinear Loads , 2012 .

[10]  Hao Zhu,et al.  Permanent magnet synchronous motor current ripple reduction with harmonic back-EMF compensation , 2010, 2010 International Conference on Electrical Machines and Systems.

[11]  Silverio Bolognani,et al.  Experimental fault-tolerant control of a PMSM drive , 1998, IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200).

[12]  L. Parsa,et al.  A Unified Fault-Tolerant Current Control Approach for Five-Phase PM Motors With Trapezoidal Back EMF Under Different Stator Winding Connections , 2013, IEEE Transactions on Power Electronics.

[13]  Li Sun,et al.  Switching Function Model-Based Fast-Diagnostic Method of Open-Switch Faults in Inverters Without Sensors , 2011, IEEE Transactions on Power Electronics.

[14]  S. Soter,et al.  Improving grid voltage quality by decentral injection of current harmonics , 2005, 31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005..

[15]  K. Uezato,et al.  An adaptive dead-time compensation strategy for voltage source inverter fed motor drives , 2005, IEEE Transactions on Power Electronics.

[16]  T.A. Lipo,et al.  On-line dead time compensation technique for open-loop PWM-VSI drives , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[17]  Hoang Le-Huy,et al.  Minimization of Torque Ripple in Brushless DC Motor Drives , 1986, IEEE Transactions on Industry Applications.

[18]  Geun-Ho Lee,et al.  Torque Ripple Reduction of Interior Permanent Magnet Synchronous Motor Using Harmonic Injected Current , 2008, IEEE Transactions on Magnetics.

[19]  P. Mutschler,et al.  Fault-Tolerant Voltage Source Inverter for Permanent Magnet Drives , 2012, IEEE Transactions on Power Electronics.

[20]  V. Oleschuk,et al.  Phase-Shift-Based Synchronous Modulation of Dual Inverters for an Open-End Winding Motor Drive with Elimination of Zero Sequence Currents , 2005, 2005 International Conference on Power Electronics and Drives Systems.

[21]  Xiaoyi Jiang,et al.  Novel Filter for Stator Harmonic Currents Reduction in Six-Step Converter Fed Multiphase Induction Motor Drives , 2013, IEEE Transactions on Power Electronics.

[22]  K. Akatsu,et al.  A New Control Method for Torque Ripple Compensation of Permanent Magnet Motors , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[23]  Jang-Mok Kim,et al.  Vector control and harmonic ripple reduction with Independent Multi-phase PMSM , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[24]  Faa-Jeng Lin,et al.  Fault-Tolerant Control of a Six-Phase Motor Drive System Using a Takagi–Sugeno–Kang Type Fuzzy Neural Network With Asymmetric Membership Function , 2013, IEEE Transactions on Power Electronics.

[25]  S. Kim.  Active zero-sequence cancellation technique in unbalanced commercial building power system , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[26]  N. A. O. Demerdash,et al.  Fault-Tolerant Operation of Delta-Connected Scalar- and Vector-Controlled AC Motor Drives , 2012, IEEE Transactions on Power Electronics.