Battery Management System For A Distributed Energy Storage System, and Applications Thereof
First Claim
1. A distributed energy storage unit, comprising:
- a battery having a plurality of cells;
a battery manager, coupled to the battery, that monitors battery cell voltages and includes a current measuring device that is used to determine a state of charge of the battery; and
a controller coupled to the battery manager that provides a first control signal that causes the distributed energy storage unit to store energy in the battery and a second control signal that causes the distributed energy storage unit to generate an alternating current.
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Abstract
The present invention provides a distributed energy storage system, and applications thereof. In an embodiment, the distributed energy storage system includes power units, wherein each power unit has a multi-cell battery; a battery manager that monitors battery cell voltages and temperatures; and a controller. The controller provides a first control signal that causes the power unit to store energy in the battery and a second control signal that causes the power unit to generate an alternating current. A server in communication with each of the power units stores data collected from the power units about the batteries and analyzes the data to determine how much available energy is stored in the batteries that can be used to alter a load demand of a power network, hi an embodiment, the batteries are lithium ion batteries capable of storing at least ten kilowatt- hours of energy.
72 Citations
10 Claims
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1. A distributed energy storage unit, comprising:
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a battery having a plurality of cells; a battery manager, coupled to the battery, that monitors battery cell voltages and includes a current measuring device that is used to determine a state of charge of the battery; and a controller coupled to the battery manager that provides a first control signal that causes the distributed energy storage unit to store energy in the battery and a second control signal that causes the distributed energy storage unit to generate an alternating current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A distributed energy storage system, comprising:
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a plurality of power units, wherein each power unit comprises a battery having a plurality of cells, a battery manager, coupled to the battery, that monitors battery cell voltages and includes a current measuring device that is used to determine a state of charge of the battery, and a controller coupled to the battery manager that provides a first control signal that causes the power unit to store energy in the battery and a second control signal that causes the power unit to generate an alternating current; and a server in communication with each of the power units, wherein the server stores data collected from the power units about the batteries and analyzes the data to determine how much available energy is stored in the batteries that can be used to alter a load demand of a power network. - View Dependent Claims (10)
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Specification