TIDUE53I march 2018 – july 2023 TMS320F28P550SJ , TMS320F28P559SJ-Q1
In the following section, the converter is initially operating at 800 V DC link voltage at 220 VRMS AC input voltage and delivering around 400 W of output power. It is then subjected to a step load and the results are shown here for two cases. Figure 3-42 shows the transient performance when the a step load of 2 kW is applied. The voltage overshoot on the DC link voltage is around 35 V. Scope signals: Channel 1 - AC voltage (blue), Channel 2 - AC current (light green), Channel 3 - DC link voltage (dark green).
Figure 3-43 shows the transient performance when the a step load of 4 kW is applied. The voltage overshoot on the DC link voltage is around 40 V. Scope signals: Channel 1 - AC voltage (blue), Channel 2 - AC current (light green), Channel 3 - DC link voltage (dark green).
Figure 3-44 shows the transient performance when the a step down load of 2 kW is applied. Scope signals: Channel 1 - AC voltage (blue), Channel 2 - AC current (light green), Channel 3 - DC link voltage (dark green).
Figure 3-45 shows the output voltage regulation when the input voltage is changed suddenly from 210 VAC to 175 VAC and then back to 210 VAC. Scope signals: Channel 1 - AC voltage (blue), Channel 2 - AC current (light green), Channel 3 - DC link voltage (dark green).