With the gradual maturity of localized production, scale and technology, domestic brands usually have price advantages, and the improvement of quality has also significantly increased the cost performance of domestic inverters, and the market demand will become more and more inclined to the domestic market. It will eventually break the long-term monopoly of foreign inverters, and domestic manufacturers will also form well-known brands.

Domestic demand will be detonated

Because the frequency converter has functions such as speed regulation, it has certain advantages in the field of energy saving. According to the calculation, the power saving rate of the motor system using the inverter is generally about 30%, and it can reach 40% to 60% in some higher occasions, and the energy saving effect is remarkable.

For example, the central air conditioner is designed according to the maximum required cooling (heating) amount plus 10% to 20%, which consumes a lot of electricity and has a great potential for energy saving. Using frequency converters to control the speed and energy saving of central air-conditioning refrigeration compressors, refrigeration pumps, cooling pumps, cooling tower fans, return air devices, etc., can avoid excessive flow and excessive pressure, and ensure the normal and effective operation of the system. CONTROLENGINEERINGChina All rights reserved. , can save 20% to 50% of electricity.

For another example, during the construction of the "First Tunnel of the Yangtze River in Ten Thousand Miles", the Shanghai Yangtze River Tunnel, the builders needed to ensure that the tunnel with a length of about 8.9 kilometers and an inner diameter of 13.7 meters was well ventilated. To this end, this project uses a frequency converter, which directly sets the motor speed according to the amount of air used, precisely adjusts the air volume, optimizes the use of electrical facilities, and saves 20% to 45% of energy.

Wang Zhankui, secretary general of the Electrical Energy Conservation Committee of the China Electrotechnical Society, said that from 2013 to 2015, the Ministry of Industry and Information Technology will take improving the energy efficiency of motors and improving the energy efficiency of motor systems as the main direction of industrial energy conservation.

Industry insiders pointed out that with the promotion of the concept of energy saving and environmental protection, the market development of the inverter industry is gradually optimistic, and the inverter market in my country has maintained a growth rate of 12% to 15% in recent years. Some data show that CONTROLENGINEERINGChina all rights reserved. During the "Twelfth Five-Year Plan" period, my country's environmental protection investment will reach 3.1 trillion yuan. It is estimated that by 2015, the total output value of my country's energy conservation and environmental protection industry will reach 5.3 trillion yuan, equivalent to 8% of GDP in the same period~ 10%.

"As the main force and vanguard of energy conservation and emission reduction, high-voltage inverters will have huge market demand in the future." Industry insiders told reporters that the next 10 years will be a decade of coexistence of challenges and opportunities, and also a breakthrough in China's inverter industry. 10 years of development. At present, the growth rate of inverter installation capacity (power) in the Chinese market is actually about 20%, and the potential market space is about 120 billion yuan to 180 billion yuan. Among them, low-voltage inverters account for about 60% of the market share, and the remaining 40% are occupied by medium and high-voltage inverters.