Dv/dt limiting of inverter output voltage

Details Dv/dt limiting of inverter output voltage Dv/dt limiting of inverter output voltage

H - Electricity

02

H

H02H 7/122 (2006.01) H02M 1/00 (2006.01)

Patent

CA 2167546

A voltage rise limiting circuit (10) for use in conjunction with an inverter-driven induction motor (14). The circuit (10) includes capacitors (C4, C5, C6) connected in a delta configuration, with each node (64, 66, 68) coupled between an inductor (L7, L8, L9) and an input line of a diode bridge rectifier. The rectifier clamps positive voltage levels, putting trapped energy back into the do inverter bus.

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