Title :
Quasi-subharmonics in PWM inverters
Author :
Nagy, István ; Bartal, Peter
Author_Institution :
Dept. of Autom. & Appl. Inf., Budapest Univ. of Technol. & Econ., Budapest, Hungary
Abstract :
Ultra-high speed electric machines (speed is in the order of 100 krpm) supplied by PWM inverters are extremely vulnerable to subharmonics. The main source of subharmonics is in the low frequency modulation ratio of the PWM inverters available. The paper presents methods for the calculation of subharmonics.
Keywords :
PWM power convertors; electric machines; power system harmonics; PWM inverters; low frequency modulation ratio; quasisubharmonics; ultra-high speed electric machines; Amplitude modulation; Converters; Fourier series; Frequency modulation; Harmonic analysis; Inverters; Pulse width modulation; Harmonics; High frequency power converter; High speed drive; Induction motor;
Conference_Titel :
Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International
Conference_Location :
Ohrid
Print_ISBN :
978-1-4244-7856-9
DOI :
10.1109/EPEPEMC.2010.5606655
