Title :
Analysis Of Natural Sampled PWM Switching Strategy For A Cascaded Multilevel Inverter Using Double Integral Fourier Method
Author :
Razali, Azziddin Mohamad ; Salam, Zainal
Author_Institution :
Fac. of Electr. Eng., Kolej Univ. Teknikal Kebangsaan
Abstract :
This paper describes a method to obtain a closed-form solution of the PWM output voltage waveform using a technique known as the double integral Fourier series expansion. A thorough treatment of on the mathematical derivation spectra of output voltage of a cascaded five-level inverter using this approach is given. This is followed by a verification of the results using practical results from a specially built test-rig. In addition, the harmonic spectra obtained from the closed-loop solution are compared with the calculation using the MATLAB time-based simulation
Keywords :
Fourier series; PWM invertors; cascade networks; harmonic analysis; switching convertors; MATLAB time-based simulation; PWM output voltage waveform; PWM switching strategy; cascaded multilevel inverter; closed-loop solution; double integral Fourier series expansion; harmonic spectra; mathematical derivation spectra; Closed-form solution; Discrete Fourier transforms; Fourier series; Frequency; MATLAB; Power system harmonics; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Voltage; Multilevel inverter; closed-form solution;
Conference_Titel :
Power Electronics and Drives Systems, 2005. PEDS 2005. International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
0-7803-9296-5
DOI :
10.1109/PEDS.2005.1619920
