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Two new pulse width modulation (PWM) schemes: chaos-based sinusoidal PWM (SPWM) and chaos-based space vector PWM (SVPWM) are brought forward. There are cluster harmonics around the multiples of switching frequency in conventional SPWM and SVPWM output waves owing to their fixed switching frequencies. Chaos-based PWM strategies utilize a chaotic changing switching frequency to spread the harmonics...
The solutions of the switching angles for inverter's selected harmonic elimination method with Walsh function are the piecewise linear equations with the fundamental amplitude. However it is required to determine and search all feasible angle combinations to gain the solutions in the full range of variation of fundamental voltage. The searching time is very long, especially when a big number of switching...
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