"Biggest Challenge" for Balcony power plant - The EMC Testing

With the increasing popularity of renewable energy, the use of Balcony power plant is getting higher. However, an easily overlooked but crucial technical threshold - the electromagnetic compatibility (EMC) test is quietly becoming a key yard rod to measure the quality and safety of Balcony power plant. In Europe, where photovoltaic technology is leading the trend, especially in Germany, EMC issues are not only related to the advancement of technology but also directly affect the green electricity safety protection of every family. let's explore why EMC has become a technical threshold that cannot be ignored when Balcony power plant enter our lives.

   
The importance of EMC: The Invisible Guardian of Balcony power plant in Europe

Electromagnetic compatibility (EMC) refers to the ability of electronic devices to work properly in an electromagnetic environment without causing serious electromagnetic interference to other devices in the application scenario. In the Balcony power plant, the microinverter is the core component, and its EMC performance is directly related to the stability, safety and compatibility with other household appliances. Imagine if the Balcony power plant frequently interferes with the TV signal and wireless network at home due to EMC problems, also even causes security risks, how should we analysis the green energy? When it comes to EMC standards, Europe, especially Germany, It is undoubtedly the industry pioneer on a global scale. Germany is famous for its rigorous technical standards and rigorous test process, and has extremely high requirements for the EMC performance of photovoltaic products.
The reason is Germany's leading position in the field of renewable energy, also because of its high attention to the quality of life of residents. In Germany, any photovoltaic product entering the market must pass strict EMC testing to ensure that it can still operate stably in a variety of complex electromagnetic environments, while not interfering with other equipment and free from external interference.

   
Case study
 

case1
The number of Balcony power plant failures caused by EMC problems continues to grow. For example, in a technical report published by India's Ministry of Renewable Energy (MNRE) on its official website, The report titled "Impact of EMC Issues in Photovoltaic Inverters on Grid Stability", in a large photovoltaic power plant project in India, due to the EMC performance of some inverters is not up to standard. It causes harmonic pollution and voltage fluctuation in the power grid. These problems not only affect the power quality of the power grid, but also increase the burden of the power grid protection equipment, and even cause the instability of the local power grid.

    
case2 
Solar2030E.v. advisory website reported on April 6, 2024, that the German Federal Network Administration BNetzA announced that a company's inverter products did not meet the EMC standard and thus banned the distribution of the article explained that the inverter may cause electromagnetic interference with electronic equipment and radio communications. This interference can cause an unstable Internet connection or noise from nearby radios. According to BNetzA, even the radio networks of police and rescue services could be affected.

Original report by Solar2030E.v

These cases remind us that EMC problems are of vital interest to every user. Therefore, both manufacturers and consumers are paying more and more attention to the EMC performance of products. As a leader in photovoltaic technology in Europe and the world, the industry trend of EMC certification has a profound impact on the global market. With the widespread popularity of Balcony power plant in German households, EMC issues have gradually become the focus of attention inside and outside the industry. The German market's high standard requirements for EMC not only increase the promotion of photovoltaic product technology, but also lead the global photovoltaic industry to attach importance to EMC issues.

TSUN: Pioneer and guardian in EMC
   

Among the many PV brands, TSUN was the first in China to take the microinverter into Offenbach VDE laboratory in Germany for EMC testing, which lasted for up to 9 months, and successfully passed the EMC test in accordance with EN 62920 on October 5, 2023. The rigorous new EMC (Electromagnetic Compatibility) tests conducted by the 2017 standard set an extraordinary industry milestone. The testing and certification work of VDE institutions is widely recognized internationally. Its test laboratory is accredited by DIN EN ISO/IEC 17025 and is a recognized test laboratory (CBTL) in the IECEE International Certification System (CB system). The VDE organization performs EMC and radio testing in accordance with international directives, standards and laws, which reinforces TSUN's commitment to strictly complying with and exceeding industry safety standards. EMC testing includes three key assessments:

1. Evaluate the overall electromagnetic interference of the product
2. Ac side conducted interference test
3. Dc side conducted interference test

The introduction of DC side conducted interference testing in the 62920 standard sets a higher benchmark for product performance and reliability. With this successful test, TSUN has become the first brand in the world to meet this new standard, positioning itself at the forefront of EMC compliance. By 2024, the 62920 standard has been fully adopted across the industry, making TSUN's achievements even more prominent and rare. 

Advanced laboratories

Advanced Laboratory

Tsun Receives VDE Certification

This achievement demonstrates TSUN's confidence in the quality of its products and its respect for the rules of the international market. TSUN G3 series products have passed the market test of large quantities. Numerous user feedback has proven that TSUN's microinverters perform well in EMC performance, although they can maintain a stable operating state despite complex electromagnetic environments and extreme weather conditions, without interfering with other equipment or being affected by external interference. This series of successful cases not only won a good market reputation for TSUN but also provided valuable experience for the research and development of its subsequent products.

EMC: the primary inspection standard for the quality of microinverters

Nowadays, EMC has become an important yardstick to measure the quality and safety of Balcony power plants. As the pioneer and guardian in the EMC field, TSUN has won wide recognition in the market for its excellent product performance and strict quality control system. In the future, with the continuous in-depth research of green life and the continuous progress of photovoltaic technology, TSUN will continue to create more excellent products in the field of microinverters and bring stable, safe, and efficient green energy solutions to more families around the world.