Control Design of Two Boost Choppers in Parallel by Petri Net and Flatness Approaches
摘要
In this paper, we consider two boost choppers connected in parallel, with two different sources, and a load with low power demand. The two boost choppers can enter in a discontinuous mode of operation by providing a small current that approaches zero. To prevent this, we propose a new strategy for power distribution based on the value of the current at the limit between continuous and discontinuous modes. In the case of a very low power demand, one boost chopper can be disconnected, ensuring a continuous mode operation for the remaining boost chopper.