A sensorless control for damping of torsional vibrations with middle voltage induction motor drive for compressor application
- Resource Type
- Conference
- Authors
- Nagata, Koichiro; Nemoto, Haruo; Katayama, Toshio; Akita, Yoshitoshi
- Source
- Proceedings of the 2011 14th European Conference on Power Electronics and Applications Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on. :1-10 Aug, 2011
- Subject
- Power, Energy and Industry Applications
Photonics and Electrooptics
Nuclear Engineering
Geoscience
Components, Circuits, Devices and Systems
Communication, Networking and Broadcast Technologies
Vibrations
Torque
Induction motors
Frequency conversion
Damping
Shafts
Mathematical model
Active damping
Industrial application
Sensorless control
Variable speed drive
- Language
In this paper the converter control method against damping torsional vibration of megawatt class compressor system is proposed. This method is based on field-oriented vector control. The main block is very simple but the motor torque can be controlled to enlarge the electric dumping coefficient easily. And the proposed method has good robustness for motor parameters and can decrease torsional vibration without speed sensor. Simulations for several assumed conditions were done to check the stability and robustness for motor parameters. And measurement of shaft torque with 3.3kV/ 600kW induction motor and compressor system was done to check the effectiveness of the proposed method.