Home Energy Storage System
The home energy storage system can be regarded as a miniature energy storage station, and its operation is not affected by the power supply pressure of the city. In the period of low power consumption, the battery pack in the home energy storage system can be automatically charged to reserve the demand of peak power or power failure. In addition to serving as an emergency power source, the home energy storage system can help balance the electricity load of the home, thus saving the electricity expenses of the home.
The structure of home energy storage system includes: photovoltaic module, energy storage battery, energy storage inverter, grid-connected and metering equipment, public grid, household load and important load, etc. PV energy gives priority to meet the important load electricity, followed by charging the battery, and finally flows to the household load, and the excess flows to the grid.
Principle of operation
1) In the morning, the PV energy is supplied to the load with sufficient light, and the household load consumes the photovoltaic power generation to the maximum extent, and the remaining power will be stored by the battery; When the light is insufficient, the battery releases the power to the load.
2) In the afternoon, after the household load consumption is satisfied and the battery is full, the remaining power will be fed to the grid.
3) In the absence of sunlight, the battery is inverted into AC power for load use by inverter.
4) When the battery cannot meet the load demand, the grid will replenish the power for the load.
