🔋How to achieve anti-islanding protection for microinverters?

🌟1.What is the ‘islanding effect’ in solar energy system?

The islanding effect occurs mainly in grid-connected inverter systems. When the power generation system is disconnected from the main grid (e.g. in the case of a blackout), the inverter still continues to work and supply power to the local loads, forming an ‘isolated’ power system, which is known as the islanding effect. This phenomenon is known as the islanding effect. Since off-grid inverters are not connected to the main grid, there is no islanding effect in the off-grid inverter itself.

💡What are the hazards of the ‘islanding effect’?

🚨A Hazardous to the life and safety of power maintenance personnel: When the power grid is disconnected, if the power generator continues to supply power, the power maintenance personnel may enter the work area unknowingly, which may easily lead to electrocution accidents.
🔒B Affecting the safety and reliability of the power grid: When the islanding effect occurs, the protective switches on the distribution system may not respond correctly, resulting in faults that cannot be cut off in time, which in turn affects the normal operation of the entire distribution system.
💥C Damage to equipment: When the power grid is restored, the voltage phase desynchronisation caused by the islanding effect may generate inrush currents, causing further damage to the loads and the power supply system.

💡How to achieve anti-islanding effect protection for microinverters of solar systems?

fect protection for microinverters of solar systems?
The key point to realise anti-islanding effect is the built-in relay and voltage acquisition element in the microinverter. When the grid is disconnected or loses voltage, when the islanding effect occurs at this time, the voltage acquisition element of the grid will immediately feed back the information to the microinverter, and then the microinverter will disconnect the relay of the grid, isolate the connection between the inverter and the grid, and play a role of safety protection, preventing the occurrence of the islanding effect.

🎉[ACrevPOWER’s Commitment]

Safety is no small matter, our whole series of ACrevPOWER microinverters (e.g. SP series, SPD series) are equipped with this ultra-practical anti-islanding protection function as standard. Give your solar system more peace of mind, reliability, and a full sense of security while enjoying green energy! 💖

Remember, choosing a microinverter with anti-islanding protection is adding a solid line of defence to your solar system! 🛡️ Get the peace of mind that every ray of sunlight will be converted into electricity to light up your green life! 🌟