Title :
An AC converter with a small DC link capacitor for a 15 kW permanent magnet synchronous integral motor
Author :
Kretschmar, K. ; Nee, H.-P.
Author_Institution :
KTH, R. Inst. of Technol., Stockholm, Sweden
Abstract :
An AC/AC power converter designed to feed a permanent magnet synchronous motor with a rated power of 15 kW is investigated in this paper. The converter consists of a diode rectifier, a small DC link capacitor and an inverter, which is controlled by an open loop pulse width modulation system (PWM). The circuit is simulated and the simulation results are analyzed and verified by measurements. Due to the small capacitor, special emphasis is put on the analysis of the DC link voltage. The paper also includes an analytical expression of the ripple of the DC link voltage
Keywords :
AC-AC power convertors; 15 kW; AC/AC power conversion; DC link voltage ripple; circuit measurements; circuit simulation; diode rectifier; inverter; open loop PWM system; permanent magnet synchronous motor; power converter design; small DC link capacitor;
Conference_Titel :
Power Electronics and Variable Speed Drives, 1998. Seventh International Conference on (Conf. Publ. No. 456)
Conference_Location :
London
Print_ISBN :
0-85296-704-7
DOI :
10.1049/cp:19980597
