Central current share coordinator, method of current sharing and battery plant employing the same
AssigneeLineage Power Corporation
InventorsMarc D. Hirsch, John C. Brooke, Roy J. Davis
Life of this patent
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Abstract
The present invention provides a central current share coordinator for use with remotely and non-remotely controllable rectifiers coupled to an output bus. In one embodiment, the central current share coordinator includes a rectifier current resolver configured to determine an existing current share condition for the remotely and non-remotely controllable rectifiers. Additionally, the central current share coordinator also includes a load share adjuster coupled to the rectifier current resolver and configured to adjust an output current of the remotely controllable rectifiers toward a target current share distribution on the output bus.
Claims18
A central current share coordinator for use with remotely controllable rectifiers and non-remotely controllable rectifiers coupled to a common output bus, comprising:
- a rectifier current resolver configured to determine an existing current share condition for said remotely controllable rectifiers and said non-remotely controllable rectifiers, wherein at least a portion of said non-remotely controllable rectifiers indicates an output current;
- and
- a load share adjuster coupled to said rectifier current resolver and configured to adjust an output current of said remotely controllable rectifiers toward a target current share distribution between said remotely controllable and said non-remotely controllable rectifiers on said common output bus, wherein said remotely controllable rectifiers and said non-remotely controllable rectifiers convert alternating current (AC) power from separate AC sources to a direct current (DC) output voltage.
A method of current sharing for use with remotely controllable rectifiers and non-remotely controllable rectifiers coupled to a common output bus, comprising:
- providing alternating current (AC) power to said remotely controllable rectifiers and said non-remotely controllable rectifiers from separate AC sources;
- converting said AC power by said remotely controllable and non-remotely controllable rectifiers to a direct current (DC) output;
- determining an existing current share condition for said remotely controllable rectifiers and said non-remotely controllable rectifiers, wherein at least a portion of said non-remotely controllable rectifiers indicates an output current;
- and
- adjusting an output current of said remotely controllable rectifiers toward a target current share distribution between said remotely controllable and said non-remotely controllable rectifiers on said common output bus.
A battery plant, comprising:
- a battery string coupled to a common output bus;
- remotely controllable rectifiers and non-remotely controllable rectifiers coupled to said common output bus, wherein at least a portion of said non-remotely controllable rectifiers indicates an output current and wherein said remotely controllable and said non-remotely controllable rectifiers convert alternating current (AC) power from separate AC sources to a direct current (DC) output voltage;
- a power system controller coupled to said remotely controllable rectifiers and said non-remotely controllable rectifiers;
- and
- a central current share coordinator coupled to said power system controller, including:
- a rectifier current resolver that determines an existing current share condition for said remotely controllable rectifiers and said non-remotely controllable rectifiers, and
- a load share adjuster, coupled to said rectifier current resolver, that adjusts an output current of said remotely controllable rectifiers toward a target current share distribution between said remotely controllable and said non-remotely controllable rectifiers on said common output bus.
Dependencies are inferred from the claim text.