Autonomous charge balancing of distributed AC coupled batteries with droop offset
First Claim
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1. An apparatus for autonomous charge balancing of an energy storage device of a microgrid, comprising:
- the energy storage device; and
a power conditioner, coupled to the energy storage device, comprising a droop control module for operating the power conditioner, during an autonomous mode of operation, using a droop control technique such that the state of charge of the energy storage device is autonomously driven toward the state of charge of at least one other energy storage device of the microgrid.
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Abstract
A system and apparatus for autonomous charge balancing of an energy storage device of the microgrid. In one embodiment the apparatus comprises the energy storage device; and a power conditioner, coupled to the energy storage device, comprising a droop control module for operating the power conditioner, during an autonomous mode of operation, such that the state of charge of the energy storage device is autonomously driven toward the state of charge of at least one other energy storage device of the microgrid.
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Citations
20 Claims
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1. An apparatus for autonomous charge balancing of an energy storage device of a microgrid, comprising:
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the energy storage device; and a power conditioner, coupled to the energy storage device, comprising a droop control module for operating the power conditioner, during an autonomous mode of operation, using a droop control technique such that the state of charge of the energy storage device is autonomously driven toward the state of charge of at least one other energy storage device of the microgrid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for autonomous charge balancing of a plurality of energy storage devices of a microgrid, comprising:
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the plurality of energy storage devices; and a plurality of power conditioners coupled via a power bus and coupled to the plurality of energy storage devices in a one-to-one correspondence, wherein each power conditioner comprises a droop control module for operating the power conditioner during an autonomous mode of operation, and wherein during the autonomous mode of operation the plurality of power conditioners are operated using a droop control technique such that the states of charge of the plurality of energy storage devices are autonomously driven toward being equal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification