High power system with antiparallel protection diode arrangement
AssigneeVacon Oy
InventorsMagnus Hortans, Karl Kyrberg
Life of this patent
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Abstract
A high power system includes a common DC-bus supply with bus connections, a DC link capacitor bridging the two bus connections and at least two inverter modules connected to the DC-bus supply via the bus connections. Each inverter module includes at least one inverter cell with at least one free-wheeling diode (FWD). The inverter cells are connected to the bus connections via inverter cell connections. A protection diode arrangement is provided antiparallel to the DC link capacitor.
Claims15
A high power system comprising a common DC-bus supply with bus connections, a DC link capacitor bridging the two bus connections and at least two inverter modules connected to the DC-bus supply via the bus connections, each inverter module comprising at least one inverter cell with at least one free-wheeling diode, wherein the inverter cells are connected to the bus connections via inverter cell connections, wherein a protection diode arrangement is provided anti-parallel to the DC link capacitor.
Dependencies are inferred from the claim text.