| 摘要 |
The invention relates to a battery energy storage system (10) and controlling method, wherein the battery energy storage system comprising: an input (102) capable of connecting with a grid; a first output (104) capable of connecting with a first load; a charge controller (108) connected to the input (102) and adapted to convert an alternating current power supply from the input (102) to a direct current power supply; a battery (110) connected to the charge controller (108) and adapted to store the direct current power supply converted by the charge controller (108); an inverter (112) connected to the battery (110) and the first output (104) and adapted to convert a direct current power supply stored in the battery (110) to an alternating current power supply and output the converted alternating current power supply to the first output (104); a first switch (114) connected to the input (102) and the first output (104); and an energy management system (118) adapted to control the charge controller (108), the inverter (112) and the first switch (104), wherein the energy management system (118) turns on the first switch (104) when the energy management system (118) detects that there is energy on the input (102) and turns off the first switch (104) when the energy management system (118) detects that there is no energy on the input (102). With the battery energy storage system (10) and the controlling method, the load power is not limited by the drive capability of the inverter of the battery energy storage system (10). |
