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Energy Storage: Multi-battery Charge Equalization Circuits
Search All Applications in Energy Storage: Multi-battery Charge Equalization Circuits
Application US20190207395
Published 2019-07-04
Stepwise Battery Module Precharge And Post-discharge Of High Voltage Battery Systems
A method may include activating two or more bypassable battery modules in succession through a current-limiting circuit to precharge an application bus from a power source.
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- 1. A method, comprising:
activating a first bypassable battery module, of a bypassable battery module system, to precharge an application bus through a precharge circuit, wherein a first voltage difference between a first output voltage of the bypassable battery module system and a first application bus voltage is less than a total voltage of the bypassable battery module system based on activating the first bypassable battery module of the bypassable battery module system; and activating a second bypassable battery module, of the bypassable battery module system, to precharge the application bus through the precharge circuit based on activating the first bypassable battery module, wherein a second voltage difference between a second output voltage of the bypassable battery module system and a second application bus voltage is less than the total voltage of the bypassable battery module system based on activating the second bypassable battery module.
- 8. A system, comprising:
a first battery module configured to activate to precharge an application bus through a precharge circuit, wherein a first voltage difference between a first output voltage of the system and a first application bus voltage is less than a total voltage of the system based on the first battery module being activated; and a second battery module configured to activate to precharge the application bus through the precharge circuit after the first battery module is activated, wherein a second voltage difference between a second output voltage of the system and a second application bus voltage is less than the total voltage of the system based on the second battery module being activated.
- 15. A device, comprising:
one or more processors to: activate a first bypassable battery module, of a bypassable battery module system, to precharge an application bus through a precharge circuit, wherein a first voltage difference between a first output voltage of the bypassable battery module system and a first application bus voltage is less than a total voltage of the bypassable battery module system; and activate a second bypassable battery module, of the bypassable battery module system, to precharge the application bus through the precharge circuit based on activating the first bypassable battery module, wherein a second voltage difference between a second output voltage of the bypassable battery module system and a second application bus voltage is less than the total voltage of the bypassable battery module system based on activating the second bypassable battery module.
