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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...
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