Fast dc link voltage control of grid-connected converters maintaining low total harmonic distortion
AssigneeB.G. Negev Technologies and Applications Ltd., At Ben-Gurion University
InventorsAlon KUPERMAN, Pavel STRAJNIKOV
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Abstract
A grid-connected converter comprising a power factor controller (PFC) for control of flow of power from a grid supply to a load via a DC link, by switching of at least one active component, which converter including: a voltage controller receiving a link voltage vDC at the DC link and generating a feedback control signal for input to the PFC controller from the link voltage, which voltage controller including: a notch filter tuned to a nominal grid frequency; and a proportional (P)+lead lag compensator.
Claims22
A grid-connected converter comprising a power factor controller (PFC) for control of flow of power from a grid supply to a load via a DC link, by switching of at least one active component, which converter comprising:
- a voltage controller receiving a link voltage vDC at said DC link and generating a feedback control signal for input to PFC controller from said link voltage, which voltage controller comprising:
- a notch filter tuned to a nominal grid frequency;
- and
- a proportional (P)+lead lag compensator.
-20. (canceled)
A method of upgrading a grid-connected convertor connectable to a load by a DC link and having a PFC controller comprising:
- adjusting an original voltage controller to include:
- a notch filter tuned to a nominal grid frequency;
- and
- a lead lag compensator.
-32. (canceled)
Dependencies are inferred from the claim text.