Dingfeng Capacitor --Future development of film capacitors

Film capacitor industry application

Film capacitors are widely used due to their advantages of high voltage resistance, non-polarity, wide frequency response, and good temperature characteristics. Mainly divided into traditional areas and new areas. Traditional areas include home appliances, lighting, industrial control, etc.; emerging areas include wind power, photovoltaics, and new energy vehicles.

Traditional field - home appliance industry is growing steadily

Taking air conditioners as an example, film capacitors in air conditioners are mainly used in motor starting and other circuit control sections. On the one hand, consumption upgrades have driven the demand for air conditioners and the penetration rate of inverter air conditioners to increase simultaneously. On the other hand, fixed-frequency to frequency conversion, air-conditioning circuit board control increased, and the use of film capacitors increased.

Traditional field - demand for film capacitors in the lighting industry declines

In LED lighting, film capacitors are only used for lamps above 8w, and the required amount is less than that of energy-saving lamps. As a result, rising LED penetration will lead to a decline in lighting demand.

Emerging areas - rapid development of new energy auto industry

In order to increase the output power, the bus voltage of new energy vehicles has a tendency to increase continuously, which puts higher requirements on the performance of DC support capacitors. Film capacitors are superior in performance to aluminum electrolytic capacitors. The rapid development of the new energy automotive industry has provided new development momentum for film capacitors.

Emerging areas - photovoltaic power generation is expected to usher in an inflection point

Photovoltaic power generation has shifted from a high-speed growth phase to a high-quality development phase. The restrictions on the scale of photovoltaic construction have significantly affected the demand for photovoltaic installations. At the same time, it has also put pressure on the growth of demand for film capacitors. In 2019, we will promote the high-quality development of photovoltaic power generation as the main line, continue to promote the development of the photovoltaic industry, and maintain a reasonable development scale and development pace of the photovoltaic industry. The photovoltaic power generation industry will usher in a new turning point, and the demand for film capacitors will be released.

Emerging areas - wind power installed capacity continues to increase

In high-power wind power inverter applications of new energy sources, film capacitors have absolute advantages over electrolytic capacitors due to the need for long life or thousands of volts withstand voltage requirements. The demand for film capacitors in the wind power market comes from two parts. First, the need for new installed capacitors for film capacitors; Second, the need to replace aluminum electrolytic capacitors. The increase in the installed capacity of wind power has provided a new impetus for the development of the film capacitor industry.

Based on the above analysis, film capacitors have increased or decreased in traditional applications. The field of home appliances has maintained a steady rise, and the lighting sector has declined. However, in emerging applications, including new energy vehicles, photovoltaic power generation, wind power installations and other fields have gained new development drivers. In the future, the film capacitor industry has broad application prospects.

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