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Neutral-Point Clamped (NPC), such as diode-clamped, multilevel inverter technology has emerged recently as a very important alternative in the area of high-power medium-voltage energy control. However, the NPC Multilevel topology also has variable type of structure which cannot be found due to lack of systematic derivation methodology. A new system method, called NPC Flow Graph (NPC-FG), is proposed...
Solid state dc motor drives are becoming increasingly popular. The inherent disadvantages of such drives are studied by considering a separately excited dc motor fed from a single-phase thyristor converter. The discontinuous and highly rippled armature current in solid state dc drives affect the commutating capability of the dc motor and its static and dynamic performances. A novel current control...
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