If both switches in a leg are simultaneously turned OFF, the current through the load inductorįree-wheels through the body-diode depending on the current direction. Similarly, switches S B+ and S B-, and S C+ and S C- cannot be ON simultaneously. Thus, switches S A+ and S A- cannot be ON simultaneously. Next section deals with the theoretical background for this experiment followed by simulation of switched-mode DC-AC converter.įinally, the simulation model is verified in real-time.Ĭonsider the 3Φ 2 level inverter shown below:Īt no instant, can both switches of a leg be simultaneously ON, as this will lead to shoot-through because of directly shorting the DC bus. In this experiment, the functioning of the power processing unit and the modulation algorithm used is explored in detail. The power processing unit was considered a black-box that generated desired voltage at the inverter output given a reference voltage. In previous experiments, the induction motor dq model and its controller was developed and tested in simulation and real-time.
0 Comments
Leave a Reply. |