Inverter scale
With the expansion of the market and the diversification of user demand, the functions of inverter products in the domestic market have been continuously improved, the degree of integration and systematization is getting higher and higher, and the operation is more convenient, and special inverter products in some industries have also appeared. In addition, the application field of frequency converters is also expanding. From the factory's production and processing equipment to central air conditioning, from heavy machinery to the textile industry, from 0.4KW small power to 20000KW high-power motor have been widely used, and obvious economic benefits have been achieved
High voltage frequency converter
Due to the wide range of applications, high-voltage inverter speed regulation has become the mainstream speed regulation method of high-voltage AC motor, the actual power-saving effect range is between 20%-60%, according to the current average price of about 600 yuan per kW high-voltage inverter, regardless of the future new high-voltage motor frequency conversion speed regulation needs, the potential market of high-voltage inverter is as high as 80 billion yuan, of which the market capacity of high-performance products is about 10 billion yuan. In addition, China's installed motor capacity is still increasing. It is imperative to improve efficiency and tap the energy-saving potential of the motor itself, and the high-voltage variable frequency speed regulation technology has broad prospects.
At present, the situation of medium and high voltage inverters configured with medium and high voltage motors for domestic fan pumps is low, estimated to be less than 20%, and process improvement requirements and energy-saving requirements will exist in China for a long time, which will support the long-term prosperity of the high voltage inverter market. With the increasing importance of environmental protection issues and the continuous improvement of industrial production requirements, the demand for high-voltage inverter products will continue to strengthen, and the high-voltage inverter market is still expected to maintain long-term rapid growth. According to China's transmission network forecast, for emerging markets such as wind power, rail transit, and photovoltaics, the average growth rate of high-voltage inverters can reach 25%, and the local growth rate can reach 30% or even higher; For petrochemical, chemical and other industries, the growth rate is 15-25% on average; For industries such as steel, building materials and power, the growth rate has slowed down.
Medium and low voltage frequency conversion
At present, the users of domestic medium and low voltage inverter products are mainly domestic users, distributed in many economic fields, such as lifting machinery, municipal, coal, oil and gas drilling and mining, petrochemical, electric power, metallurgy, textile and chemical fiber, food and beverage industry, etc. Although the products of individual excellent brands are exported abroad, the export proportion of the entire industry is still very limited on the whole. Foreign brands in China's high-end market of medium and low voltage inverters still dominate, represented by ABB, Siemens and Yaskawa, and their business is mainly concentrated in steel, cement, lifting and elevator industries.
Explosion-proof frequency converter
At present, China's frequency conversion technology has developed rapidly, but the explosion-proof frequency conversion speed regulation device used in flammable and explosive environments such as coal mines, petroleum and chemical industry has not been effectively promoted. At present, only about 10% of all kinds of motors used in coal mines are equipped with explosion-proof frequency converters, and according to the requirements of the country to save energy and reduce the energy consumption of tons of coal, more than 50% of the motors will achieve frequency conversion control in the next ten years. According to the preliminary forecast of market research, China needs to use such products (1.0-15,000 units) every year, and the equipment that needs to be updated and transformed reaches 0.8-15,000 units, and the market demand is very large.