Overall power solution for home energy storage system

The home energy storage system is similar to a micro energy storage power station, and its operation is not affected by the pressure of the city's power supply. During the off-peak time of electricity consumption, the battery pack in the home energy storage system can charge itself for backup power peak or power outage. In addition to being used as an emergency power source, the home energy storage system can also balance the electricity load, thereby saving household electricity expenses.

Although the current market demand for home energy storage systems is more due to the needs of the public for emergency backup power, in the eyes of industry insiders, the use of home energy storage systems can combine new energy power generation systems such as solar energy, promote the promotion of new energy, and build smart Power grid, the market prospect is broad.

Basic structure and component requirements of home energy storage system

Home energy storage systems are currently divided into two types, one is grid-connected home energy storage systems, and the other is off-grid home energy storage systems.

The grid-connected home energy storage system consists of five parts, including: solar cell array, grid-connected inverter, BMS management system, battery pack, and AC load. The system adopts hybrid power supply of photovoltaic and energy storage system. When the mains is normal, the photovoltaic grid-connected system and the mains supply power to the load; when the mains is cut off, the energy storage system and the photovoltaic grid-connected system jointly supply power. The grid-connected home energy storage system is divided into three working modes. Mode 1: photovoltaics provide energy storage and surplus electricity is connected to the grid; mode 2: photovoltaics provide energy storage and some users use electricity; mode 3: photovoltaics only provide partial energy storage.

The off-grid home energy storage system is independent and does not have any electrical connection with the grid. Therefore, the entire system does not need a grid-connected inverter, and a photovoltaic inverter can meet the requirements. The off-grid home energy storage system is divided into three working modes, mode 1: photovoltaics provide energy storage and user electricity consumption (sunny day); mode 2: photovoltaic and energy storage batteries provide user electricity consumption (cloudy day); mode 3: energy storage The battery provides power for the user (evening and rainy days).

The gradual scale and popularization of household energy storage is a healthy and rational development trend for the future energy demand in the world. Hisolar actively participates in the green development of energy technology, combines its own technology platform advantages and independent innovation capabilities, provides a complete set of power solutions for home energy storage systems, simplifies the circuit scheme of home energy storage systems, and reduces the construction and maintenance costs of home systems. Comprehensively improve the stability, security and reliability of the system.