Approximate Algorithm for Determining Pulse Edges of a PWM Inverter Based on Natural Sampling

Figure 4

The distortion factor DIS(𝑙,𝑝)% of inverter output line voltage obtained using the vector modulating function (2.22) and (a) polynomial sampling method (3.2), (b) polynomial sampling method (3.4) for 𝑠=0, (c) polynomial sampling method (3.4) for 𝑠=1, and (d) regular sampling method.