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US 7,248,490 B2Granted
Battery and inverter configuration with increased efficiency
AssigneeGaia Power Technologies, Inc.
InventorsIb Ingemann Olsen, Nicholas Blaise Pasquale
Life of this patent
Estimating the term…
Abstract
In the current invention, in order to increase efficiency of battery powered AC electricity supply, multiple inverter/battery modules are used in parallel but can be individually shut down. The number of inverters activated depends on the power usage. When only a little power is needed only one or a few inverters are activated. When more power is needed the battery inefficiency increases and more inverters will be activated.
Claims17
An AC electricity supply system comprising:
- a plurality of DC power sources;
- a plurality of inverters, wherein each inverter is connected to a corresponding DC power source and is configured to convert DC electricity from the corresponding DC power source into AC electricity;
- a power line connecting each of the plurality of inverters to an AC load for providing AC electricity from the plurality of inverters to the AC load;
- and
- a controller operatively coupled to each of the plurality of inverters by a communications bus, wherein the controller is configured to measure a power consumption of the AC load and, based on the measured power consumption of the AC load, activate an appropriate number of inverters.
2 more elements
A method for providing AC electricity to an AC load, the method comprising:
- measuring a power consumption of the AC load, wherein power is provided to the AC load from a plurality of inverters, each of the plurality of inverters being connected to a corresponding DC power source;
- and configured to convert DC electricity from the corresponding DC power source into AC electricity;
- based on the measured power consumption, determining an appropriate number of inverters to activate;
- and
- activating the appropriate number of inverters.
2 more elements
Dependencies are inferred from the claim text.