Coupled home photovoltaic+energy storage system

　　Introduction to Types of Household Energy Storage Systems

　　System Introduction

　　Coupled photovoltaic+energy storage system, also known as AC modified photovoltaic+energy storage system, is generally composed of photovoltaic modules, grid connected inverters, lithium batteries, AC coupled energy storage inverters, smart meters, CT, grid, grid connected loads, and off grid loads. This system can convert photovoltaic energy into AC power through grid connected inverters, and then convert excess electricity into DC power through AC coupled energy storage inverters for storage in batteries.

　　Work logic

　　During the day, photovoltaic power generation first supplies the load, then charges the battery, and finally the excess electricity can be connected to the grid; At night, the battery discharges to supply the load, and the insufficient part is supplemented by the power grid; When the power grid is cut off, lithium batteries only supply power to off grid loads, and the grid connected loads cannot be used. In addition, the system also supports users to set their own charging and discharging times to meet their electricity needs.

　　System characteristics

　　·Existing grid connected photovoltaic systems can be transformed into energy storage systems with low investment costs

　　·Providing users with safe electricity protection during power outages in the power grid

　　·Compatible with grid connected photovoltaic systems from different manufacturers

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