Title :
Novel modulation strategies of parallel connected NPC-PWM inverters for AC motor drives
Author :
Matsui, Keiju ; Ueda, Fukashi ; Kawata, Y. ; Tsuboi, K. ; Iwata, K.
Author_Institution :
Electr. Eng. Dept., Chubu Univ., Kasugai, Japan
Abstract :
The neutral point clamped (NPC)-PWM inverter has been put into practical use for large capacity AC motor drives, because of its various advantages. With the spread of applications, still larger capacity inverters are also expected. In this paper, a parallel connected NPC-PWM inverter is presented and conventional modulation techniques are extended to improve the inverter characteristics. For such waveforms, a frequency analysis approach is described, whose results are verified by experiments
Keywords :
AC motor drives; DC-AC power convertors; PWM invertors; switching circuits; AC motor drives; applications; frequency analysis approach; inverter characteristics; modulation strategies; neutral point clamped PWM inverters; waveform analysis; AC motors; Circuits; Diodes; Earth; Frequency; Inductors; Pulse width modulation; Pulse width modulation inverters; Switches; Voltage;
Conference_Titel :
Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3544-9
DOI :
10.1109/IAS.1996.556996
