Title :
The Effect of Current Control Strategies on Power Consumption of a Magnetically Levitated Turbomolecular Pump
Author :
A.E. Hartavi;R.N. Tuncay;M.N. Sahinkaya
Author_Institution :
Istanbul Technical University / Electrical Machinery Department, Istanbul, Turkey. E-mail: hartavi@elk.itu.edu.tr
Abstract :
This paper presents a novel current control technique called ´variable bias current control (VBCC)´ developed to minimize the power consumption of active magnetic bearings (AMB) used in turbomolecular pumps. Initially, the mathematical model of the AMBs and the TMP are derived to obtain the simulation model of the system. Then, the effectiveness of bias current on energy consumption is investigated for differential and unidirectional current control strategies. It is shown that it is beneficial to optimize the bias current according to the operating conditions. Finally, the simulation results are utilized to successfully demonstrate the effectiveness of the VBCC technique
Keywords :
"Magnetic levitation","Current control","Energy consumption","Pumps","Power system modeling","Mathematical model","Coils","Electromagnets","Stability","User-generated content"
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778356
