Inverter device

Details Inverter device Inverter device

H - Electricity

02

P

H02P 3/14 (2006.01) H02K 17/40 (2006.01) H02P 23/06 (2006.01)

Patent

CA 2310212

A method and apparatus for conducting regenerative braking for a motor load is disclosed wherein the load is driven by a plurality of power cells on each phase-line to the load, the plurality of power inverters comprising at least one single phase power inverter and at least one 3-phase inverter wherein the 3-phase inverter is connected across 3-phase lines. First, it is detected when the motor load is regenerating a motor load voltage. Then, each single phase inverter in each phase line is shorted out after detecting the motor load regeneration. The motor load voltage is then supplied to the 3-phase inverter. Finally, the load motor voltage is lowered by conducting regenerative braking through the 3-phase inverter.

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