Title :
A dual-bridge inverter approach to eliminating common mode voltages and bearing and leakage currents
Author :
Von Jouanne, Annette ; Zhang, Haoran
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
This paper presents a dual-bridge inverter approach to eliminate the motor common mode voltage and resulting bearing and leakage currents. The novel dual-bridge inverter is controlled to generate balanced excitation of the induction motor under PWM inverter operation. Theoretical analysis, simulation results and experimental results are presented to verify this concept
Keywords :
DC-AC power convertors; PWM invertors; bipolar transistor switches; bridge circuits; induction motor drives; insulated gate bipolar transistors; leakage currents; machine bearings; machine testing; machine theory; machine windings; power bipolar transistors; power semiconductor switches; PWM inverter; balanced excitation; bearing currents; common mode voltage elimination; dual-bridge inverter; induction motor; leakage currents; Filters; Induction generators; Induction motors; Leakage current; Pulse inverters; Pulse width modulation inverters; Stator windings; Switches; Variable speed drives; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616931
