The withstand voltage test of Fengchuang DC filter broke through 2000VAC, and the photovoltaic inverter market made great efforts

With the surge of global demand for clean energy, the photovoltaic industry has ushered in a period of rapid development. As the core component of photovoltaic inverter, the performance of DC filter directly affects the stability and security of the system. Shanghai Fengchuang Industrial Co., Ltd., with its deep technical accumulation in the field of electrical equipment, successfully achieved a breakthrough of 2000VAC in DC filter withstand voltage test, and made a strong contribution to the photovoltaic inverter market with leading technical advantages, injecting new kinetic energy into the development of new energy industry.

Since its establishment in 2010, Shanghai Fengchuang Industrial Co., Ltd. has been deeply involved in the field of industrial electrical equipment and has gradually developed into a comprehensive national high-tech enterprise integrating R&D, production, sales and maintenance services. Its "Fengyun-Fonyun" brand switching power supply, filters, transformers and other products have won wide recognition in the market with their excellent quality and innovative technology. Facing the urgent demand of photovoltaic industry for high-performance DC filter, Fengchuang R&D team has keenly grasped the pain points of the industry, invested a lot of resources to carry out technical research, and is committed to creating DC filter products that adapt to the harsh working environment of photovoltaic inverters.

In the actual operation of photovoltaic inverter, DC filter needs to withstand the test of high voltage, large current and complex electromagnetic environment. The traditional DC filter has limitations in voltage withstand performance, and it is difficult to meet the requirements of a new generation of photovoltaic inverters for higher voltage levels. Once the filter voltage is insufficient, it may lead to insulation breakdown, equipment damage, and even fire and other serious safety accidents, which will restrict the stable operation and power generation efficiency of photovoltaic power plants.

In order to overcome this problem, Fengchuang R&D team carries out technological innovation from multiple dimensions such as materials, structure and technology. In the selection of materials, special engineering plastics and new ceramic materials with high insulation strength are used to greatly improve the insulation performance of the filter; The core components are capacitors and inductors with high withstand voltage to ensure stable operation under high voltage. In structural design, the internal insulation layout is optimized, multiple insulation protection structures are adopted, the creepage distance and electrical gap are increased, and the arc discharge phenomenon in high voltage environment is effectively avoided. At the same time, advanced potting technology is introduced, and potting materials with high insulation and high thermal conductivity are used to fill the internal gaps, so as to enhance the overall electrical insulation performance and heat dissipation capacity.

After repeated experiments and optimization, the DC filter developed by Fengchuang has performed well in the withstand voltage test, successfully breaking through 2000VAC, far exceeding the requirements of industry standards. In addition, the filter has excellent electromagnetic compatibility, which can effectively suppress high-frequency harmonics and electromagnetic interference and ensure the stable operation of photovoltaic inverter. Its unique intelligent monitoring function can monitor the running state of the filter in real time, and immediately give an alarm and take protective measures in case of abnormality, further improving the system security.

In practical application, Fengchuang DC filter has achieved remarkable results. After a large photovoltaic power station adopts the Fengchuang DC filter, the system stability is greatly improved, the equipment failure rate is reduced by 60%, and the power generation efficiency is improved by 8%. The technical person in charge of the power station said: "Fengchuang's DC filter not only has excellent withstand voltage performance, but also has high reliability, which effectively solves our long-standing equipment safety hazards and provides a solid guarantee for the efficient operation of the power station."

With leading technology and reliable quality, the DC filter of Shanghai Fengchuang Industrial Co., Ltd. has established cooperative relations with many well-known photovoltaic inverter manufacturers, and its products are widely used in large-scale ground photovoltaic power stations, distributed photovoltaic power generation systems and other scenarios. In the future, Fengchuang will continue to increase R&D investment in the field of new energy, keep up with the development trend of industry technology, continuously optimize product performance, and introduce more innovative products to meet the needs of photovoltaic industry, so as to contribute more to the development of global clean energy.

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