Title :
Switching time point precision comparison and harmonic analysis of SPWM
Author :
Liu, Xiaodong ; Xu, Tao
Author_Institution :
Key Lab. of Power Electron. & Motion Control, AnHui Univ. of Technol., Maanshan, China
Abstract :
Based on the sinusoidal pulse width modulation technology and regular sampling method, the switching time points calculation formulas of tangent method and secant method are established. This paper analyses the precision of switching turn-on and turn-off time point, and compare these switching time points. Calculation results show that SPWM pulses generated by tangent method and secant method are closest to the pulse generated by natural sampling, the THD is also smaller than by regular sampling.
Keywords :
PWM invertors; harmonic distortion; switching convertors; SPWM; THD; harmonic analysis; natural sampling; pulse generation; sampling method; sinusoidal pulse width modulation technology; switching time point precision comparison; Equations; Harmonic analysis; Pulse generation; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Pulsed power supplies; Sampling methods; Space vector pulse width modulation; Switches; SPWM; THD; regular sampling; secant sampling; tangent sampling;
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2010 the 5th IEEE Conference on
Conference_Location :
Taichung
Print_ISBN :
978-1-4244-5045-9
Electronic_ISBN :
978-1-4244-5046-6
DOI :
10.1109/ICIEA.2010.5515870
