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Interactions between individually designed power subsystems in a cascaded system may cause instability. This paper proposes an approach, which connects a virtual impedance in parallel or series with the input impedance of the load converter so that the magnitude or phase of the load converter's input impedance is modified in a small range of frequency, to solve the instability problem of a cascaded...
Interactions between the individually designed power subsystems in a cascaded system may cause system instability. This paper proposes the concept of a virtual impedance to be connected in series with the input impedance of the load converter, and makes the magnitude or phase of the load converter's input impedance modified only in a small range of frequency. As a result, the instability problem of...
For cascaded systems, interactions among individually designed power subsystems may cause the instability of the whole system. Regulating the input impedance of the load converter is an effectively way to solve this problem, however, one big challenge of this method is how to consider the stability of cascaded system and the dynamic performance of load converter together. In light of this, this paper...
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