The switching lag-time and the voltage drop across
the power devices cause serious waveform distortions and
fundamental voltage drop in pulse width-modulated inverter output.
These phenomenons are conspicuous when both the output frequency
and voltage are low. To estimate the output voltage from the PWM
reference signal it is essential to take account of these imperfections
and to correct them. In this paper, on-line compensation method is
presented. It needs three simple blocs to add at the ideal reference
voltages. This method does not require any additional hardware
circuit and off- line experimental measurement. The paper includes
experimental results to demonstrate the validity of the proposed
method. It is applied, finally, in case of indirect vector controlled
induction machine and implemented using dSpace card.
 Victor M. Cardenas, G. Sergio Horta, M. Rodolfo Echavaria,
"Elimination of dead time effects in three phase inverter". In: Proceeding
of the IEEE-CIEP 96, October 14-17, 1996, Mexico, P.258-262.
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PWM VSI and its application to vector-controlled induction machine
parameter estimation". IEEE transactions on industry application,
Vol.47, No.5, October 2001.
 Hengbing Zhao, Q.M. Jonathan W., Atsuo Kawamura, "An accurate
approach of nonlinearity compensation for VSI inverter output voltage".
IEEE transactions on power electronics, Vol. 19, No. 4, July 2004.
 Jong-Woo Choi., Seung-Ki Sul, "A new compensation strategy reducing
voltage/current distortion in PWM VSI systems operating with low output
voltages". IEEE transactions on industry applications, Vol. 31, No. 5,
September / October 1996.
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VSI feeding induction motors". IEEE transactions on industry
application, Vol.37, No.3, May/June 2001.
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novel dead time compensation". IEEE transactions on Power Electronics,
Vol. 11, No. 2, March 1996.
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time compensation method based on time delay control". IEEE
transactions on control systems technology, Vol. 11, No. 2, March 2003.
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eliminate the dead time effect" In Proceeding of IEEE-IAS 2005. pp. 813-
 Pinard, M., "Precis of electrical engineering" Vol. II, Edition BREAL,
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alternative current conversion". Vol. IV, Edition Lavoisier, 1995.
 dSPACE documentation, "DS1102 RTI and implementation guide"