ACR10R-D Series PV/Solar Inverter Energy Meter

At present, grid companies usually require photovoltaic grid-connected systems to be non-reverse current power generation systems, that is, the electricity generated by photovoltaic grid-connected systems is consumed by local loads, and excess electricity is not allowed to be reversely transmitted to the upper grid through low-voltage distribution transformers. In the grid-connected power generation system, because the external environment is constantly changing, in order to prevent reverse power generation of the photovoltaic grid-connected system, the system needs to perform reverse current detection, and adjust the power generation of the system by monitoring the voltage and current signals on the low-voltage outlet side of the distribution transformer in real time , so as to achieve the anti-backflow function of the photovoltaic grid-connected system.

ACR10R series meters, as the key components of anti-backflow detection, adopt high-performance MCU and high-precision metering chips to realize real-time detection of voltage, current, power and electric energy. The above data refresh time is as fast as 250ms, which can meet the control real-time requirements in the inverter anti-backflow detection. The inverter performs real-time power adjustment by reading the power magnitude and direction of the ACR10R series meters in real time, and achieves the anti-backflow detection function.