Control method for energy storage system
A technology of an energy storage system and a control method, which is applied to systems for storing electrical energy, arrangement of multiple synchronous batteries, and charge balancing circuits, etc., can solve the problems of large size, battery jumping off the wire, and high cost.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 example -
[0027] First embodiment - off-line control
[0028] Please refer now figure 1 and figure 2 , figure 1 Show a functional block diagram of the energy storage system according to the first embodiment of the present case, figure 2 A waveform diagram showing the off-line of the discharge phase according to the first embodiment of the present application.
[0029] like figure 1 As shown, the energy storage system 100 according to the first embodiment of the present application includes: a plurality of battery modules. exist figure 1 In the description, the energy storage system 100 includes three battery modules 10 , 20 , and 30 as an example for illustration, but it should be understood that the present case is not limited thereto.
[0030] The energy converter 50 can convert AC or DC renewable energy into direct current to charge the battery modules 10 , 20 , 30 through the direct current bus 60 . Alternatively, the energy converter 50 can convert the DC power output by t...
no. 2 example -
[0050] Second embodiment - charge balance restoration
[0051] Please refer now Figure 4 and Figure 5 . Figure 4 A schematic diagram showing the energy storage system returning to charge balance according to the second embodiment of the present case, Figure 5 A waveform diagram showing charge balance restoration according to the second embodiment of the present application.
[0052] In the second embodiment of the present application, the battery management systems 12 , 22 , 32 communicate with each other through the communication signal line 70 , so the battery management systems 12 , 22 , 32 can know the battery voltages of each other. Here, it is assumed that the battery voltages from low to high are the battery module 30, the battery module 20 and the battery module 10, wherein the voltage of the battery pack 31 of the battery module 30 is 44V, and the voltage of the battery pack 21 of the battery module 20 is 48V. The battery pack 11 of the battery module 10 has a...
no. 3 example -
[0062] The third embodiment - static current limiting balance
[0063] Image 6A schematic diagram showing the energy storage system according to the third embodiment of the present application reverting to a static current-limiting equilibrium. The battery management systems 12, 22, 32 communicate with each other, so all the battery management systems 12, 22, 32 can know each other's battery voltage. Here, it is assumed that the battery voltages from low to high are the battery module 30, the battery module 20 and the battery module 10, wherein the voltage of the battery pack 31 of the battery module 30 is 44V, and the voltage of the battery pack 21 of the battery module 20 is 48V. The battery pack 11 of the battery module 10 has a voltage of 52V. The battery modules 10, 20, 30 are all offline. The following will describe how to restore the battery modules 10 , 20 , 30 in the offline state after all the battery modules 10 , 20 , 30 in the offline state return to normal (fo...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More