Photovoltaic energy storage application applications that you don't know about
December 07 , 2022
Photovoltaic energy storage system scheme
The Photovoltaic energy storage system includes photovoltaic modules, energy storage inverters, batteries, distribution boxes, electricity meters and other equipment. Common configurations such as 6kWp pv + 10kWh cells.
Working mode: spontaneous and self-use, and the surplus power is connected to the Internet.
Working logic:
-Photovoltaic power generation is given priority to load, excess power is given priority to battery for backup, and the rest of the power is connected to the grid;
-When the load exceeds photovoltaic power generation, the insufficient part is priority to battery discharge and supplement, by the grid buys power supplement;
-When the power grid is off, the backup end is continuously output and supplied by the battery.
It is estimated that the spontaneous use rate is> 80%, saving 5-10kWh per day.
Public facilities photovoltaic energy storage system scheme
The Photovoltaic energy storage system of bus station is composed of photovoltaic grid-connected system and AC coupled energy storage system, which can meet the charging of electric bus, the control system of bus station and office electricity. It can reduce the purchase of electricity from the power grid, load cutting point and ensure the safety of electricity consumption. In the case of power outage, you can switch to the off-grid power supply via the ATS switch.
Work pattern:
-The photovoltaic system supplies daytime bus charging and office electricity, the remaining batteries are charged, and the insufficient part is supplemented by the power grid. Can support fast charging;
-In the evening, the battery charges the bus (slowly), insufficient part of the power grid;
-EMS uniformly monitors the status of charging pile, optical storage system and power grid system, and uniformly allocates electricity according to the bus travel schedule;
-Under special circumstances, the ATS switches to off-grid power supply to ensure the normal power supply of the station control system and safety facilities.