Improved Switching Strategy for Selective Harmonic Elimination in DC-AC Signal Generation via Pulse-Width Modulation

Figure 10

Advanced design with 𝑀=32 switching cycles. PWM signal and harmonic distribution corresponding to the switching index system 𝐽^(𝑑)₃₂=[3∶4∶127], for a fundamental frequency of 50 Hz and 𝑉_dc=𝐴_ac=100 V.