Combination method of selective harmonic control for cascaded H-bridge multilevel inverter by GE Guang-jun, WANG Xi, SUN Bing-hai

“…On the basis of trapezium waveform modulation, the method uses combination method of equal area principle and harmonic injection, switching conduction angle for selective harmonic elimination can be easily obtained by simple calculation of trigonometry formula deduction and optimized, so as to realize harmonic suppression. …”
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