Title :
Power loss study of inverter-fed machine drives using Discontinuous Pulse Width Modulation
Author :
Wu, Y. ; Shao, S. ; McMahon, R.A. ; Zhan, Y. ; Knight, A.M.
Author_Institution :
Eng. Dept., Univ. of Cambridge, Cambridge
Abstract :
This paper presents a power loss study of a machine drive system using discontinuous pulse width modulation (DPWM) excitation. Pspice modeling has been used in the inverter loss prediction, and for the machine loss analysis, finite element analysis (FEA) is employed. All the analytical research of the machine drive system power loss has been verified by calorimetric measurements. This paper provides an overall comparative study of the power loss using DPWM and conventional sinusoidal pulse width modulation (SPWM) and space vector pulse width modulation (SVPWM) excitation. A conclusion has been drawn that DPWM is superior to SPWM and SVPWM considering power loss for small-scale drive applications.
Keywords :
PWM invertors; calorimetry; electric drives; finite element analysis; losses; Pspice modeling; calorimetric measurements; discontinuous pulse width modulation; finite element analysis; inverter loss prediction; inverter-fed machine drives; machine loss analysis; power loss; sinusoidal pulse width modulation; space vector pulse width modulation excitation; Costs; Drives; Finite element methods; Loss measurement; Power engineering and energy; Predictive models; Pulse inverters; Pulse width modulation converters; Pulse width modulation inverters; Space vector pulse width modulation;
Conference_Titel :
Sustainable Energy Technologies, 2008. ICSET 2008. IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-1887-9
Electronic_ISBN :
978-1-4244-1888-6
DOI :
10.1109/ICSET.2008.4747184
