Battery assemblies, battery arrangement and use for controlling current
AssigneeSem AB
InventorBo Bijlenga
Life of this patent
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Abstract
A battery assembly configured to be operable during charging or discharging to distribute a common current delivered to or from a common bus and a use of at least one analog battery module. Also disclosed is an analog battery module for distributing current between a plurality of battery strings. Each analog battery module is connectable in series with a respective battery string. The distribution of the current between the battery strings is at least partially given by the respective voltages of the analog battery modules.
Claims14
A first battery assembly (100) is configured to be operable, during charging or discharging, to distribute a common current delivered to or from a common bus that is common to the first battery assembly (100) and a set of second battery assemblies (200) connectable in parallel with the first battery assembly (100) to the common bus, wherein the first battery assembly (100) comprises a first battery module (110) and a slave control unit (120, 120s), wherein the slave control unit (120, 120s) is configured to receive, from a master control unit (120m), a target value related to a first current to be delivered at, such as to or from, the first battery assembly (100), wherein the first battery assembly (100) is connectable to the master control unit (120m) for communication of the target value, wherein the slave control unit (120, 120s) is configured to adjust voltage over the first battery module (110) to steer the first current towards the target value by adjusting a first voltage over the first battery module (110), wherein the first battery module (110) is configured to receive, from the slave control unit (120s), a first signal representing the first voltage to be output over the first battery module (110), wherein the first signal is configurable to represent a range of voltages capable of being output over the first battery module (110), wherein the slave control unit (120s) is configured to determine the first signal based on the target value and to send the first signal to the first battery module (110).
A battery assembly (600) for outputting a controllable current during charging or discharging of the battery assembly (600), wherein the battery assembly (600) comprises:
- a set of battery modules (110, 190-192), wherein the battery modules (110, 190-192) of the set of battery modules (110, 190-192) are connected in series, and wherein the battery assembly (600) is characterized in that the set of battery modules (110, 190-192) comprises:
- a first battery module (110) configured to receive a first signal representing a first voltage to be output over the first battery module (110), wherein the first signal is configurable to represent a range of voltages capable of being output over the first battery module (110), wherein the first voltage contributes to a voltage over the battery assembly (600), and
- at least one further battery module (190-192), wherein each further battery module (190-192) of the plurality of further battery modules (190-192) contributes with a respective further voltage to the voltage over the battery assembly (600).
A battery arrangement (130) is configured to be operable, during charging or discharging, to distribute a common current delivered to or from a common bus that is common to a first battery assembly (100) and a set of second battery assemblies (200) connectable in parallel with a series connection of the first battery assembly (100) and the battery arrangement (130) to the common bus, wherein the battery arrangement (130) comprises a first battery module (110) and a slave control unit (120s), wherein the slave control unit (120s) is configured to receive, from a master control unit (120m), a target value related to a first current to be delivered, at such as to or from, the first battery assembly (100), wherein the battery arrangement (130) is connectable to the master control unit (120m) for communication of the target value, wherein the slave control unit (120s) is configured to adjust voltage over the battery arrangement (130) to steer the first current towards the target value by adjusting a first voltage over the first battery module (110), wherein the first voltage contributes to the voltage over the battery arrangement (130), wherein the first battery module (110) is configured to receive, from the slave control unit (120s), a first signal representing the first voltage to be output over the first battery module (110), wherein the first signal is configurable to represent a range of voltages capable of being output over the first battery module (110), wherein the slave control unit (120s) is configured to determine the first signal based on the target value and to send the first signal to the first battery module (110).
Use of at least one first battery module (110) for distributing current between a plurality of battery strings (113, 163, 173), wherein a count of said at least one first battery module (110) amounts to an first number of first battery modules (110) and a count of said plurality of battery strings (113, 163, 173) amounts to a battery string number of battery strings, wherein the first number is equal to the battery string number or the first number is equal to the battery string number reduced by one, wherein each first battery module (110) of the first number of first battery modules (110) is connectable in series with a respective battery string of the battery string number of battery strings, wherein each first battery module (110) of the first number of first battery modules (110) is configured to receive a respective first signal representing a respective first voltage to be output over the first battery module (110), wherein the respective first signal is configurable to represent a range of voltages capable of being output over said each first battery module (110), and wherein the distribution of the current between the battery string number of battery strings is at least partially given by the respective voltages of the first number of first battery modules (110).
Dependencies are inferred from the claim text.