Battery pack with integrated battery management system
First Claim
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1. A battery pack comprising:
- a plurality of battery modules;
a balancing charger configured to add energy to the plurality of battery modules; and
a battery pack controller coupled to a plurality of daisy-chained battery module controllers to form a communication network,wherein each of the plurality of daisy-chained battery module controllers is mounted on one of the plurality of battery modules and is configured to remove energy from the battery module it is mounted on, and wherein each of the plurality of daisy-chained battery module controllers comprises;
a first terminal coupled to a positive terminal of the battery module that the battery module controller is mounted on;
a second terminal coupled to a negative terminal of the battery module that the battery module controller is mounted on; and
a shunt resistor configured to be selectively applied across the first and second terminals to discharge energy of the battery module that the battery module controller is mounted on.
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Abstract
Embodiments disclosed herein relate to a battery pack that may be used in an battery energy storage system. In an embodiment, the battery pack may include an integrated battery management system (BMS) having isolated, distributed, daisy-chained battery module controllers. The daisy-chained battery module controllers may be coupled to a battery pack controller, which may charge and/or discharge the battery pack using the battery modules controllers and a balancing charger.
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Citations
19 Claims
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1. A battery pack comprising:
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a plurality of battery modules; a balancing charger configured to add energy to the plurality of battery modules; and a battery pack controller coupled to a plurality of daisy-chained battery module controllers to form a communication network, wherein each of the plurality of daisy-chained battery module controllers is mounted on one of the plurality of battery modules and is configured to remove energy from the battery module it is mounted on, and wherein each of the plurality of daisy-chained battery module controllers comprises; a first terminal coupled to a positive terminal of the battery module that the battery module controller is mounted on; a second terminal coupled to a negative terminal of the battery module that the battery module controller is mounted on; and a shunt resistor configured to be selectively applied across the first and second terminals to discharge energy of the battery module that the battery module controller is mounted on. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13, 14)
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10. A battery pack comprising:
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a plurality of battery modules; a balancing charger configured to add energy to the plurality of battery modules; and a battery pack controller coupled to a plurality of daisy-chained battery module controllers to form a communication network, wherein each of the plurality of daisy-chained battery module controllers is mounted on one of the plurality of battery modules and comprises; a shunt resistor configured to discharge energy from the battery module that it is mounted on; a processor configured to instruct the shunt resistor to discharge energy from the battery module that it is mounted on; and a communication terminal configured to receive an instruction from the battery pack controller to discharge energy from the battery module that it is mounted on. - View Dependent Claims (11, 12, 15, 16, 17, 18, 19)
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Specification