Current source inverter having hybrid switches
AssigneeGM Global Technology Operations LLC
InventorsMuhammad H. Alvi, Alireza Fatemi, Suresh Gopalakrishnan
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Abstract
A current source inverter includes a first phase leg including a plurality of switching devices, a second phase leg including a plurality of switching devices, and a third phase leg including a plurality of switching devices. The current source inverter also includes a zero-state phase leg including at least one switching device, wherein the zero-state phase leg is configured to transition from an open state to prevent current flow to a closed state to allow current flow between a positive and negative terminal during a dead-band time.
Claims20
A current source inverter comprising:
- a first phase leg including a plurality of switching devices;
- a second phase leg including a plurality of switching devices;
- a third phase leg including a plurality of switching devices;
- and
- a zero-state phase leg including at least one switching device, wherein the zero-state phase leg is configured to transition from an open state to prevent current flow to a closed state to allow current flow between a positive and negative terminal during a dead-band time,
- wherein the plurality of switching devices of the first phase leg comprises a bidirectional switching device and a unidirectional switching device, and wherein a node connection to a load is disposed between the bidirectional switching device and the unidirectional switching device.
A current source inverter comprising:
- a first phase leg including a plurality of switching devices;
- a second phase leg including a plurality of switching devices;
- a third phase leg including a plurality of switching devices;
- and
- a zero-state phase leg including at least one bidirectional switching device, wherein the zero-state phase leg is configured to transition from an open state to prevent current flow to a closed state to allow current flow between a positive and negative terminal during a dead-band time,
- wherein the plurality of switching devices of the first phase leg comprises a bidirectional switching device and a unidirectional switching device, and wherein a node connection to a load is disposed between the bidirectional switching device and the unidirectional switching device.
A current source inverter comprising:
- a first phase leg including a plurality of switching devices;
- a second phase leg including a plurality of switching devices;
- a third phase leg including a plurality of switching devices;
- and
- a zero-state phase leg including at least one unidirectional switching device, wherein the zero-state phase leg is configured to transition from an open state to prevent current flow to a closed state to allow current flow between a positive and negative terminal during a dead-band time,
- wherein the plurality of switching devices of the first phase leg comprises a bidirectional switching device and a unidirectional switching device, and wherein a node connection to a load is disposed between the bidirectional switching device and the unidirectional switching device.
Dependencies are inferred from the claim text.