Title :
Study on magnetic noise caused by harmonics in output voltages of PWM inverter
Author :
Iida, Shoji ; Ohkuma, Yasuhiro ; Masukawa, Shigeo ; Miyairi, Shota ; Bose, Bimal K.
Author_Institution :
Dept. of Electr. Eng., Tokyo Denki Univ., Japan
Abstract :
Harmonic components included in the output waveform of inverter circuits cause magnetic noise from the output transformers or load motors. Functions are proposed for estimating the magnetic noise caused by the harmonics. By applying those functions, one can predict which of the waveforms is more noisy. The magnetic noise in several waveforms of PWM (pulsewidth-modulation) inverters is compared, and the output waveform is improved in order to reduce it
Keywords :
acoustic noise; acoustic radiators; harmonics; invertors; pulse width modulation; PWM inverter; harmonics; magnetic noise; output voltages; output waveform; Circuit noise; Ear; Frequency; Humans; Magnetic circuits; Magnetic noise; Power system harmonics; Pulse width modulation inverters; Transformers; Voltage;
Conference_Titel :
Industrial Electronics Society, 1990. IECON '90., 16th Annual Conference of IEEE
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-87942-600-4
DOI :
10.1109/IECON.1990.149300
