Title :
Experimental evaluation of mitigation techniques for bearing currents in inverter-supplied drive-systems - investigations on induction motors up to 500 kW
Author :
Muetze, A. ; Binder, A.
Author_Institution :
Dept. of Electr. Energy Conversion, Darmstadt Univ. of Technol., Germany
Abstract :
A research program for systematic investigation of the influence of different system parameters on additional bearing currents at inverter-operation has been set up. This paper discusses the influence of the cable type and of different mitigation techniques such as filters and insulated as well as hybrid bearings on the bearing current phenomena for power levels 11 kW to 500 kW. The impact of these parameters depends significantly on the type of bearing current occurring and hence on the motor size.
Keywords :
DC-AC power convertors; induction motor drives; invertors; machine bearings; machine testing; 11 to 500 kW; bearing currents; hybrid bearings; inverter-operation; invertor-supplied induction motor drives; mitigation techniques; system parameters; Cable insulation; Filters; Induction motors; Insulated gate bipolar transistors; Inverters; Rotors; Stators; Testing; Variable speed drives; Voltage;
Conference_Titel :
Electric Machines and Drives Conference, 2003. IEMDC'03. IEEE International
Print_ISBN :
0-7803-7817-2
DOI :
10.1109/IEMDC.2003.1210706
