Title :
Performance analysis of slope and frequency modulated carrier PWM methods for grid connected converters
Author :
Rosu, S.G. ; Radoi, Constantin ; Teodorescu, Mihail ; Savu, Andrei ; Bojoi, Radu Iustin
Author_Institution :
Univ. Politeh. of Bucharest, Bucharest, Romania
Abstract :
A detailed analysis of two Pulse-Width Modulation (PWM) methods is performed in this paper for grid connected converters. The considered methods are: sinusoidal carrier regulated by the slope of a trapezoidal waveform PWM (SLPWM) and frequency modulated triangular carrier PWM (HIPWM-FMTC). The analysis of the two PWM methods is realized with four performance indicators: standard and weighted total harmonic distortion (THD and WTHD), fulfillment of the grid connection requirements and minimum pulse width. The results are compared with those obtained for the Space Vector Modulation (SVPWM) and Selective Harmonic Elimination PWM (SHE-PWM). Experimental results are presented for a 1 kVA inverter prototype to validate the paper conclusions.
Keywords :
PWM invertors; PWM power convertors; frequency modulation; harmonic distortion; harmonics suppression; power grids; waveform analysis; HIPWM-FMTC; SHE-PWM; SLPWM; SVPWM; apparent power 1 kVA; frequency modulated carrier PWM methods; grid connected converters; grid connection requirements; inverter prototype; performance indicators; pulse-width modulation methods; selective harmonic elimination PWM; sinusoidal carrier regulation; slope modulated carrier PWM methods; space vector modulation; trapezoidal waveform PWM; weighted total harmonic distortion; Frequency modulation; Harmonic analysis; Power harmonic filters; Space vector pulse width modulation; Uninterruptible power systems; frequency modulated triangular carrier; grid code; pulse-width modulation; slope PWM;
Conference_Titel :
Advanced Topics in Electrical Engineering (ATEE), 2013 8th International Symposium on
Conference_Location :
Bucharest
Print_ISBN :
978-1-4673-5979-5
DOI :
10.1109/ATEE.2013.6563491
