Integrated string control unit systems and methods
First Claim
1. A battery system comprising:
- a first battery string comprising a first battery module and a second battery module connected in series;
a battery control system configured to control operation of the battery system, wherein the battery control system comprises;
a first cell control unit electrically coupled to the first battery module, wherein the first cell control unit is configured to determine first module level operational parameters related to operation of the first battery module;
a first integrated string control unit communicatively coupled to the first cell control unit and electrically coupled to the second battery module, wherein;
the first integrated string control unit is configured to;
determine second module level operational parameters related to operation of the second battery module;
determine first string level operational parameters related to operation of the first battery string based at least in part on the first module level operational parameters and the second module level operational parameters; and
control operation of the first battery string based at least in part on the first string level operational parameters; and
the first integrated string control unit comprises;
an integrated cell control unit configured to operate using first high voltage electrical power received from the second battery module and to determine the second module level operational parameters based at least in part on the first high voltage electrical power;
a communication interface configured to operate using low voltage electrical power received from an external power source;
processing circuitry and a processing unit configured to operate using second high voltage electrical power; and
an isolation barrier formed to electrically isolate the processing circuitry and the processing unit from the communication interface, wherein the isolation barrier comprises;
an isolated communication interface configured to communicatively couple the processing circuitry and the processing unit with the communication interface through the isolation barrier; and
a transformer configured to receive the low voltage electrical power form the external power source and generate the second high voltage electrical power supplied to the processing circuitry and the processing unit based at least in part on the low voltage electrical power.
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Accused Products
Abstract
One embodiment of the present disclosure describes a battery system that includes a battery string with a first and second battery module connected in series; and a battery control system that includes a cell control unit electrically coupled to the first battery module, in which the first cell control unit determines first module level operational parameters related to operation of the first battery module; an integrated string control unit electrically coupled to the second battery module, in which the integrated string control unit determines second module level operational parameters related to operation of the second battery module; determines string level operational parameters related to operation of the battery string based at least in part on the first module level operational parameters and the second module level operational parameters; and controls operation of the battery string based at least in part on the string level operational parameters.
12 Citations
20 Claims
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1. A battery system comprising:
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a first battery string comprising a first battery module and a second battery module connected in series; a battery control system configured to control operation of the battery system, wherein the battery control system comprises; a first cell control unit electrically coupled to the first battery module, wherein the first cell control unit is configured to determine first module level operational parameters related to operation of the first battery module; a first integrated string control unit communicatively coupled to the first cell control unit and electrically coupled to the second battery module, wherein; the first integrated string control unit is configured to; determine second module level operational parameters related to operation of the second battery module; determine first string level operational parameters related to operation of the first battery string based at least in part on the first module level operational parameters and the second module level operational parameters; and control operation of the first battery string based at least in part on the first string level operational parameters; and the first integrated string control unit comprises; an integrated cell control unit configured to operate using first high voltage electrical power received from the second battery module and to determine the second module level operational parameters based at least in part on the first high voltage electrical power; a communication interface configured to operate using low voltage electrical power received from an external power source; processing circuitry and a processing unit configured to operate using second high voltage electrical power; and an isolation barrier formed to electrically isolate the processing circuitry and the processing unit from the communication interface, wherein the isolation barrier comprises;
an isolated communication interface configured to communicatively couple the processing circuitry and the processing unit with the communication interface through the isolation barrier; and
a transformer configured to receive the low voltage electrical power form the external power source and generate the second high voltage electrical power supplied to the processing circuitry and the processing unit based at least in part on the low voltage electrical power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for implementing a battery control system used to control operation of a battery system, comprising:
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implementing a first cell control unit by electrically coupling the first cell control unit to a first terminal of a first battery module in the battery system to enable the first cell control unit to receive first high voltage electrical power from the first battery module and to determine first operational parameters related to operation of the first battery module; and implementing a first integrated string control unit by; electrically coupling the first integrated string control unit to a second terminal of a second battery module in the battery system to enable the first integrated string control unit to receive second high voltage electrical power from a first battery string and to determine second operational parameters related to operation of the second battery module, wherein the first battery string comprises the first battery module and the second battery module connected in series; and communicatively coupling the first integrated string control unit to the first cell control unit via a first high voltage serial communication network to enable the first integrated string control unit to determine third operational parameters related to operation of the first battery string based at least in part on the first operational parameters and to determine control commands instructing the battery system to adjust operation of the first battery string. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A tangible, non-transitory, computer-readable medium that stores instructions executable by one or more processors of a design system, wherein the instructions comprise instructions to:
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determine, using the one or more processors, a battery control system architecture that specifies building blocks used to implement a battery control system in a battery system, wherein the building blocks comprise a cell control unit and an integrated string control unit; determine, using the one or more processors, number of battery modules in a battery string of the battery system, wherein the battery string comprises one or more battery modules connected in series; indicating, using the one or more processors, the integrated string control unit to be electrically coupled to a first battery module in the battery string to enable the integrated string control unit to determine a first battery module voltage and a battery string voltage based at least in part on the first battery module voltage; and indicating, using the one or more processors, the cell control unit to be electrically coupled to a second battery module in the battery string to enable the cell control unit to determine a second battery module voltage only when the battery string comprises multiple battery modules. - View Dependent Claims (18, 19)
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20. A battery system comprising:
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a first battery string comprising a first battery module and a second battery module connected in series; a battery control system configured to control operation of the battery system, wherein the battery control system comprises; a first cell control unit electrically coupled to the first battery module, wherein the first cell control unit is configured to determine first module level operational parameters related to operation of the first battery module; a first integrated string control unit communicatively coupled to the first cell control unit and electrically coupled to the second battery module, wherein; the first integrated string control unit is configured to; determine second module level operational parameters related to operation of the second battery module; determine first string level operational parameters related to operation of the first battery string based at least in part on the first module level operational parameters and the second module level operational parameters; and control operation of the first battery string based at least in part on the first string level operational parameters; and the first integrated string control unit comprises; a parallel communication interface configured to communicatively couple the first integrated string control unit to a second integrated string control unit and a system control unit via a parallel communication network; a low voltage serial communication interface configured to communicatively couple the first integrated string control unit to the second integrated string control unit and the system control unit via a low voltage serial communication network; a high voltage serial communication interface configured to communicatively couple the first integrated string control unit to the first cell control unit via a high voltage serial communication network; and an isolation barrier configured to electrically isolate the parallel communication interface and the low voltage serial communication interface from the high voltage serial communication interface.
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Specification