Title :
A novel inverter with sinusoidal voltage and current output
Author :
Nabae, A. ; Kitamura, M. ; Okamura, Y. ; Peng, F.Z.
Author_Institution :
Tokyo Inst. of Polytech., Japan
Abstract :
Output voltages of a conventional voltage-source pulse-width-modulated (PWM) inverter applied to AC motor drive systems contain high-level switching frequency ripples due to the PWM operation, while output currents are kept nearly sinusoidal. The high-level harmonics, in the output voltage cause acoustic noises and iron losses. To improve the output voltage waveforms, the authors propose a novel inverter with sinusoidal voltage and current outputs, which has an LC passive filter and an active filter function. The principle of the inverter and some simulation results are shown. Simulation results show satisfactory operation when it is applied to a field-oriented vector control system, for an induction motor
Keywords :
acoustic noise; active filters; electric drives; harmonics; induction motors; invertors; losses; passive filters; pulse width modulation; AC motor drive systems; LC passive filter; PWM operation; acoustic noises; active filter function; field-oriented vector control system; high-level harmonics; inverter; iron losses; output voltage waveforms; voltage source PWM inverter; AC motors; Acoustic noise; Acoustic pulses; Iron; Passive filters; Power harmonic filters; Pulse inverters; Pulse width modulation inverters; Switching frequency; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-0635-X
DOI :
10.1109/IAS.1992.244306
