Analysis of naturally sampled space vector modulation PWM in overmodulation region

An analysis algorithm for the naturally sampled SVPWM in over-modulation region is presented, the comparison between naturally sampled SVPWM and conventional SVPWM in overmodulation region is carried out. The results of analysis and simulation prove that naturally sampled SVPWM could be used not only in undermodulation but also in overmodulation region. The work performed by this paper shows a promising use of the naturally sampled SVPWM. The obviously advantage is that it could be implemented by using DSP with only simplified computation and short time of on line calculation, or just by using analog circuits without the help of microprocessor at all. All the work performed by this paper provide a platform for the implementation of naturally sampled SVPWM operating in both undermodulation and overmodulation region.