Regenerative multicell drive system with overlap angle in fundamental frequency modulation
AssigneeInnomotics GmbH
InventorsLiviu Mihalache, Richard H. Osman, Mukul Rastogi
Life of this patent
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Abstract
A regenerative drive system includes a plurality of power cells receiving power from a source and supplying power to one or more output phases, wherein each power cell is operable in multiple operation modes, each power cell including multiple switching devices including active front-end switching devices, and a central control system controlling operation of the plurality of power cells, wherein the central control system is configured to control the active front-end switching devices of each power cell with variable conduction angles in the multiple operation modes.
Claims18
1-17. (canceled)
A regenerative drive system comprising:
- a plurality of power cells receiving power from a source and supplying power to one or more output phases, wherein each power cell is operable in multiple operation modes, each power cell comprising multiple switching devices including active front-end switching devices, and
- a central control system controlling operation of the plurality of power cells, wherein the central control system is configured to control the active front-end switching devices of each power cell with variable conduction angles in the multiple operation modes.
A method for controlling a regenerative drive system comprising:
- determining conduction angles for active front-end switching devices of a plurality of power cells of a drive system for multiple operation modes, and
- controlling the active front-end switching devices of the plurality of power cells with the conduction angles during the multiple operation modes, wherein the conduction angles vary depending on an operation mode.
Dependencies are inferred from the claim text.