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Solar Energy Update: Anti-countercurrent grid-connected photovoltaic power generation system



Anti-Countercurrent Grid-Connected Photovotalic Power Generation System

"With the continuous expansion of industrial and commercial power consumption, industrial and commercial energy storage technology are gradually becoming mainstream. However, the  countercurrent balckhole in the energy storage system has always been a difficult problem for users. Let's explore various anti-reflux ( as known as: anti-countercurrent or anti-backflow) scenarios and corresponding solutions in industrial and commercial energy storage."

This scenario is very common in the photovoltaic system for self-use, after the installation of a photovoltaic system with anti-countercurrent, the photovoltaic electricity is only supplied to the local load, and the electricity emitted by the photovoltaic system can be controlled not to be sent to the grid.

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PV-BESS-EMS energy coordinated operation

In a multi-energy complementary system, the coordinated operation of various energy devices (such as photovoltaic power generation, wind power generation, energy storage systems, EV charging stations, and etc.) may led to the countercurrent. The efficient and stable operation of the multi-energy complementary system can be realized through reasonable anti-reflux solution.
Multi-point countercurrent data acquisition Adopting refined  Energy Management System
● Collecting countercurrent data on the high and low voltage side through multiple bidirectional power meters
● The meter data is connected to the EMS coordination control management system
● The EMS sends control commands externally to achieve dynamic energy balance

Adopting refined  Energy Management System
● According to the real-time load demand and the status of photovoltaic and energy storage systems, the charge and discharge power is adjusted, and collaborative control strategies are designed to achieve optimal operation between various energy devices.
● By monitoring the running status of each device in real time, intelligent scheduling and control are carried out to ensure that the system can meet the load demand and effectively prevent countercurrent.