Title :
Multilevel PWM methods based on control degrees of freedom combination and its theoretical analysis
Author :
Deng, Yan ; Wang, Hongyan ; Zhang, Chao ; Hu, Lei ; He, Xiangning
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
Three kinds of novel PWM methods for multilevel inverters are researched theoretically in the paper, which utilizes vertical offsets among carriers of the CFD (control freedom dimension) and horizontal offsets among carriers of the CFD. Harmonic components of the proposed PWM algorithms can be calculated with the double Fourier analysis. According to the calculation results, analytical spectra and the harmonic characteristics are presented. Comparisons are made to help the comprehension.
Keywords :
Fourier analysis; PWM invertors; harmonic analysis; control freedom degree combination; double Fourier analysis; harmonic characteristics; multilevel PWM methods; multilevel inverters; Amplitude modulation; Computational fluid dynamics; Frequency; Harmonic analysis; Phase modulation; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Switching converters; Voltage control;
Conference_Titel :
Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005
Print_ISBN :
0-7803-9208-6
DOI :
10.1109/IAS.2005.1518674
