Analysis and Control of a Novel Power Electronics Converter for Active Magnetic Bearing Drive

Magnetic bearing has been developed for high-speed rotational machinery and its power electronics drive is its key technology. In this paper, a novel converter with reduced switches for magnetic bearing drive is described. The principle of the magnetic bearing and its test rig were introduced and graphically illustrated at first. Then, based on the current unidirectional and phase-leg sharing principles, the novel converter topology for magnetic bearing drive together with the current control functions is introduced, including the steady state and dynamic performance. Less power electronics devices are required for this converter in comparison with conventional magnetic bearing drives. Simulation and experimental results have successfully validated the current control capability of magnetic bearing with the proposed converter. With the novel converter and the controller, magnetic bearing can deliver superior levitation and dynamic control performance. In the rotational test, the magnetic bearing has been controlled with position error less than 20% of the air gap up to 24 000 r/min on the test rig.

[1]  Stefano Carabelli,et al.  High-efficiency linear power amplifier for active magnetic bearings , 2000, IEEE Trans. Ind. Electron..

[2]  T. Grochmal,et al.  Control of a self-bearing servomotor , 2009, IEEE Control Systems.

[3]  J.W. Kolar,et al.  Modulation Concepts for the Control of a Two-Phase Bearingless Slice Motor Utilizing Three-Phase Power Modules , 2007, 2007 Power Conversion Conference - Nagoya.

[4]  G. Schweitzer,et al.  Magnetic bearings : theory, design, and application to rotating machinery , 2009 .

[5]  Zongli Lin,et al.  Design, Construction and Modeling of a Flexible Rotor Active Magnetic Bearing Test Rig , 2010 .

[6]  Johann W. Kolar,et al.  Magnetically levitated slice motors - an overview , 2009 .

[7]  Ned Mohan,et al.  Practical implementation of dual purpose no voltage drives for bearingless motors , 2015, 2015 IEEE Applied Power Electronics Conference and Exposition (APEC).

[8]  David G. Dorrell,et al.  Magnetic Bearings and Bearingless Drives , 2005 .

[9]  M. Chiaberge,et al.  A multi-purpose control and power electronic architecture for active magnetic actuators , 2012, 2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC).

[10]  R. Krishnan,et al.  Switched reluctance motor drives : modeling, simulation, analysis, design, and applications , 2001 .

[11]  Dong Jiang,et al.  Analysis and control of a reduced switch converter for active magnetic bearings , 2016, 2016 IEEE Applied Power Electronics Conference and Exposition (APEC).

[13]  Dirk Söffker,et al.  Optimization Strategy for PID-Controller Design of AMB Rotor Systems , 2016, IEEE Transactions on Control Systems Technology.

[14]  Jiancheng Fang,et al.  Frequency-Varying Current Harmonics for Active Magnetic Bearing via Multiple Resonant Controllers , 2017, IEEE Transactions on Industrial Electronics.

[15]  Yang Huan.  Study on Inverter-fed Three-pole Active Magnetic Bearing , 2006 .

[16]  Yuan Ren,et al.  Current-Sensing Resistor Design to Include Current Derivative in PWM H-Bridge Unipolar Switching Power Amplifiers for Magnetic Bearings , 2012, IEEE Transactions on Industrial Electronics.

[17]  Ronghai Qu,et al.  Design of four-axis magnetic bearing for high speed motor , 2016, 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia).

[19]  Johann W. Kolar,et al.  Comparison of Voltage-Source Inverter Topologies for Two-Phase Bearingless Slice Motors , 2011, IEEE Transactions on Industrial Electronics.

[20]  Jun Wang,et al.  Analysis and modeling of a switching power amplifier for magnetic bearing , 2009, 2009 4th IEEE Conference on Industrial Electronics and Applications.