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US 2013/0093376 A1Published application
Regenerative medium voltage inverter
AssigneeLsis Co., Ltd.
InventorAn No YOO
Life of this patent
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Abstract
Provided is a regenerative medium voltage inverter, the inverter being such that regenerative operation is enabled by changing structure of input terminal of a unit power cell at a series H-bridge medium voltage inverter, and a dynamic braking resistor is not required to reduce the size of a DC-link capacitor over that of a conventional medium voltage inverter.
Claims9
A regenerative medium voltage inverter, the inverter comprising:
- a plurality of power cells configured to transmit, by serially-connected three groups, a phase voltage to a motor;
- a plurality of input filters interconnected between an input power unit and the power cell to reduce harmonics of a 3-phase input power;
- and
- a plurality of switching signal generating units interconnected between the input power unit and the power cell to switch a voltage inputted to the power cell.
1 more element
Dependencies are inferred from the claim text.