Abstract:
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The use of the Walsh transform in DC-AC PWM
waveform generation allows the calculation of the switching
angles by means of linear equations which depend on the
fundamental amplitude. However, when it is needed a wide
regulation of the fundamental amplitude, conventional
application of Walsh transform forces to switch among different
equation sets, due to the range limitation of each one of them. In
this paper it is described an advanced method to obtain the
switching angles that permits full regulation of the fundamental
amplitude, with only a switching interval vector, in single phase
systems. The paper shows Matlab simulation results that proof
the efficiency of the advanced method algorithm |