Electromagnetic compatibility (EMC) is a crucial factor for the stability and safety of residential photovoltaic (PV) systems, particularly when it comes to microinverters. Poor EMC performance can result in system malfunctions, interference with household appliances and wireless networks, and even potential safety hazards. Addressing these challenges, Sungrow has recently achieved a groundbreaking milestone in the renewable energy sector.
Sungrow has become the world’s first company to receive the prestigious EMC certification for its microinverter from VDE, one of Europe’s leading technology organizations. This certification underscores Sungrow’s commitment to advancing technology and reliability in residential solar energy systems. The certification process involved extensive testing conducted at the VDE German laboratory, demonstrating the microinverter’s superior ability to function reliably in complex electromagnetic environments while avoiding interference with other electronic devices. This achievement sets a new global benchmark for EMC performance in microinverters.
The certification process adhered to stringent international standards, including DIN EN IEC 61000-6-1, DIN EN IEC 61000-6-3, and EN 301 489-17. The testing focused on 10 critical performance metrics, such as conducted and radiated susceptibility, as well as immunity to power-frequency magnetic fields. Sungrow’s microinverter excelled in all these areas, surpassing the standard requirements and demonstrating exceptional stability and reliability. Its robust design ensures immunity to external electromagnetic interference (EMI) while adhering to Class B emission standards.
Several innovative features contribute to the microinverter’s superior EMC performance. One key innovation is its soft-switching topology, which minimizes EMI at its source. Additionally, the microinverter is equipped with an all-metal casing and high-conductivity sealing materials that effectively block electromagnetic radiation. Advanced control strategies further optimize the microinverter’s operation under extreme conditions, such as maximum (PVmax) and minimum (PVmin) PV input, significantly reducing harmonic distortion and high-frequency EMI.
Sven Öhrke, Board Member of the VDE Institute and CEO of VDE Global Services, commented on the achievement, stating, “With balcony PV systems gaining popularity across Europe, we are delighted to witness Sungrow’s microinverter successfully passing our rigorous testing. Sungrow truly impressed us during the tests, not only meeting but surpassing the toughest international standards.”
Beyond its exceptional EMC performance, Sungrow’s microinverter offers a range of additional benefits that enhance its value for residential PV systems. The microinverter is designed for superior energy efficiency, achieving full power output even under extreme conditions, such as non-ventilated environments with temperatures as high as 60°C. This capability increases overall energy yields by approximately 2%, providing homeowners with greater returns on their solar investments.
Ease of installation is another standout feature of Sungrow’s microinverter. Its plug-and-play design simplifies the installation process, improving efficiency by up to 30%. This user-friendly approach is complemented by intelligent self-checking capabilities and one-click network configuration, making it an ideal solution for both professional installers and residential users.
Safety is a top priority for Sungrow, and its microinverter has undergone extensive testing to ensure it meets the highest standards. It has successfully passed over 200 authoritative tests and obtained 12 international certifications, including IEC 61140, IEC 62109, and IEC 63027. These certifications reflect the microinverter’s robust safety features, giving homeowners peace of mind as they transition to clean energy solutions.
As balcony PV systems and other residential solar applications gain traction across Europe and beyond, Sungrow’s microinverter is poised to play a pivotal role in the global shift toward renewable energy. By combining cutting-edge EMC performance with superior energy efficiency, ease of use, and rigorous safety standards, Sungrow is empowering households worldwide to embrace a sustainable energy future.
This milestone not only highlights Sungrow’s dedication to innovation but also sets a new industry standard for microinverter performance. As the demand for reliable and efficient solar energy solutions continues to grow, Sungrow’s advancements in EMC technology will undoubtedly pave the way for a cleaner, greener, and more connected world.
