By introducing the matching lithium battery energy storage system, output fluctuations of wind or PV power generation can be smoothed.It overcomes the irregular output problems and improves the utilization rate of PV and wind power generation systems.
In the valley period, the battery energy storage system performs energy storage as the load; in the peak period, it performs energy release as the power supply, solving problems including low utilization of the electric equipment in the valley period and lack of load of electric equipment in the peak period. Besides, in case of local failure of the transmission network, the energy storage can be utilized to supply power continuously to ensure normal transmission of power.
Industrial and commercial energy storage: As the energy storage device, the lithium battery unit achieves AC/DC power conversion and power flow control through the Power Control System (PCS). The AC sides of multiple PCS conflux into the bus bar parallel with each other at a low voltage, and merge into the power grid through the transformer at the power distribution room.
Communication base station: The battery pack will stay in the floating charge state when the alternating current (AC) is used normally. When there is a power failure of AC, the battery pack will discharge until there is electricity again or the power of the battery pack has been used up. The battery pack will charge and reserve the electricity after the power supply restores.