An Improved Electronic Line Shafting Control for Multimotor Drive System Based on Sliding Mode Observer

As the computation delays between the reference torques and the load torques, the speed and position synchronous errors of the multimotor drive system employed traditional electronic line shafting (ELS) control would become significant during the process of large load disturbances. Therefore, an improved ELS control strategy is proposed in this paper. In this strategy, the load torques observed by the sliding model observers are fed back to the virtual motor directly, so as to shorten the adjusting time and improve the antidisturbance performance of entire control system. Meanwhile, to reduce the chattering of the sliding mode observer, a novel exponential reaching law is designed in this paper. The experimental results show that the improved ELS control strategy could reduce the speed and position synchronous errors effectively.

[1]  Duco W. J. Pulle,et al.  Advanced Electrical Drives , 2011 .

[2]  Athanasios N. Safacas,et al.  Dynamic and Vibration Analysis of a Multimotor DC Drive System With Elastic Shafts Driving a Tissue Paper Machine , 2007, IEEE Transactions on Industrial Electronics.

[3]  W. Chen,et al.  Speed Tracking and Synchronization of a Dual-Motor System via Second Order Sliding Mode Control , 2013 .

[4]  Weidong Zhang,et al.  Electrical line-shafting control for motor speed synchronisation using sliding mode controller and disturbance observer , 2017 .

[5]  F. Blaabjerg,et al.  Direct torque control of sensorless induction motor drives: a sliding-mode approach , 2004, IEEE Transactions on Industry Applications.

[6]  D. Casadei,et al.  Position Control of a Multi-Motor Drive Based on Series-Connected Five-Phase Tubular PM Actuators , 2012, IEEE Transactions on Industry Applications.

[7]  Hao Liu,et al.  Improved relative coupling control structure for multi-motor speed synchronous driving system , 2016 .

[8]  Pedro Daniel Urbina Coronado,et al.  Control Strategy for Power Distribution in Dual Motor Propulsion System for Electric Vehicles , 2015 .

[9]  Ton Duc Do,et al.  Disturbance Observer-Based Fuzzy SMC of WECSs Without Wind Speed Measurement , 2017, IEEE Access.

[10]  Robert D. Lorenz,et al.  Digital implementation issues of electronic line shafting , 2009, Conference Record of 2009 Annual Pulp and Paper Industry Technical Conference.

[11]  F.J. Perez-Pinal.  Improvement of the electronic line-shafting , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[12]  Robert D. Lorenz,et al.  Web machine coordinated motion control via electronic line-shafting , 1999 .

[13]  Guohai Liu,et al.  New Smith internal model control of two-motor drive system based on neural network generalized inverse , 2016 .

[14]  Borislav Jeftenic,et al.  Universal control block for paper machine drives , 2010, 2010 IEEE International Conference on Industrial Technology.

[15]  K. Payette.  The virtual shaft control algorithm for synchronized motion control , 1998, Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207).

[16]  M.A. Valenzuela,et al.  Startup and commissioning procedures for electronically line-shafted paper machine drives , 2001, Conference Record of 2001 Annual Pulp and Paper Industry Technical Conference (Cat. No.01CH37209).

[17]  M.A. Valenzuela,et al.  Electronic line-shafting control for paper machine drives , 2000, Conference Record of 2000 Annual Pulp and Paper Industry Technical Conference (Cat. No.00CH37111).

[18]  Aimeng Wang,et al.  A New Exponential Reaching Law of Sliding Mode Control to Improve Performance of Permanent Magnet Synchronous Motor , 2013, IEEE Transactions on Magnetics.

[19]  Changliang Xia,et al.  No-Tension Sensor Closed-Loop Control Method with Adaptive PI Parameters for Two-Motor Winding System , 2018 .

[20]  Raymond A. DeCarlo,et al.  MPC of Switching in a Boost Converter Using a Hybrid State Model With a Sliding Mode Observer , 2009, IEEE Transactions on Industrial Electronics.

[21]  康弘 山本,et al.  Position sensorless controller for a permanent magnet synchronous motor , 2012 .

[22]  C. Nunez,et al.  A Novel Speed Control Approach in Parallel-Connected Induction Motor by using a single inverter and Electronic Virtual Line-Shafting , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.