Wiring diagram of energy storage anti-backflow device

How do photovoltaic anti-backflow systems work?

According to different system voltage levels, photovoltaic anti-backflow systems can be divided into single-phase anti-backflow systems, three-phase and energy storage system ones. In a power system, power is generally sent from the grid to the load, which is called forward current.

How does a Deye inverter anti-backflow work?

4. The solution? Deye inverter anti-backflow working principle: install an meter with CT or current sensor at the grid-connected point. When it detects that there is current flowing to the grid, it will feed back to the inverter, and the inverter will immediately change its working mode and track from the maximum power point of MPPT.

Why should I install an anti-backflow prevention solution?

There are several reasons for installing an anti-backflow prevention solution: 2.1.Limited by the capacity of the upper-level transformer, users have new grid system installation needs, but it is not allowed locally. 2.2.Due to some regional policies, grid connection is not allowed. Once it is found, the grid company will impose a fine.

How to use anti-backflow function in ECU-C local network interface?

Anti-backflow function can be opened or closed in the ECU-C Local Network Interface like figure 3.In this interface you can also set power limit from 0 to a certain positive number. The power limit means that anti-backflow function works only when the backflow occurs and the backflow power is greater than the power limit.

What is battery lower limit SoC & anti-backflow function?

Figure 3-21 Note： 1. Battery Lower Limit SOC can be set to a minimum of 10%, but when the inverter is running off-grid, Battery Lower Limit SOC is 20% default. 2. Anti-backflow function is disabled by default, and the user can enable this function when connecting the power meter.