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Technological innovation has promoted the rapid development of China's frequency converter market

frequency converters have been widely used in major industrialized countries since they came out in the 1960s and 1980s. Since the 1990s, with the strengthening of people's awareness of energy conservation and environmental protection, the application of frequency converters has become more and more popular and widely used in all walks of life of the national economy and people's daily life. Frequency converter products have also developed from the era dominated by high-power bipolar transistors (GTR) to the era dominated by insulated gate transistors (IGBT)

compared with industrialized countries, China's frequency converter industry started relatively late. In the early 1990s, domestic enterprises began to understand the role of frequency converters and began to try to use them. Foreign frequency converter products officially poured into the Chinese market. At this time, most of the frequency converters entering China are products with high-power transistors as inverter components, belonging to the second generation of frequency converters

with the in-depth understanding of frequency converters by domestic enterprises and the entry of a large number of foreign products, China's frequency converter market has been rapidly started. In the mid-1980s, the annual sales volume of frequency converters in China was only tens of millions of yuan, almost all of which were foreign brands. After more than ten years of promotion and use, the frequency converters have been recognized by the majority of enterprise users. In the 1990s, the frequency converters were introduced into China on a large scale, in air conditioning, elevator, metallurgy, machinery, electronics, petrochemical, papermaking, textile, printing and dyeing, mining, cement The space of the horizontal tension testing machine is beyond that of the vertical tension testing machine, and there is a very broad application space in water supply and other industries. After entering the 21st century, the government has vigorously promoted energy-saving measures and recommended frequency conversion and speed regulation technology, which has promoted the inverter market to enter a period of high-speed development

1997-2007 is the golden decade of China's inverter industry. Inverter world has witnessed this glorious historical moment. If the keyword "growth" is used to describe the past decade, we can interpret it from three aspects

I. market scale growth - China's inverter market increased from about 2billion in 1997 to about 10billion in 2007 (expected)

1997~2002, the annual growth rate of China's inverter market was between 12~20%. In 2003, due to the substantial growth of industrial and construction investment, the market growth rate of frequency converters exceeded 40%, the sales value reached 5.56 billion yuan, and the sales volume was 430000 units, far exceeding the GDP growth rate of 9.1%. Among them, the application of frequency converters in the textile industry increased by more than 50%, in the petroleum, chemical, metallurgical and paper industries by more than 30%, in the real estate industry by more than 50% (mainly used for water supply and elevators), and in the household appliance industry by 200%. In 2004, in order to prevent the economy from overheating, China began to implement macro-control. As the investment in infrastructure slowed down, the growth of the inverter market also slowed down. In 2005, due to the lagging effect of macro-control, the growth rate of the inverter market was also very low. In 2006 and 2007, the market growth recovered to between 10% and 20%. 2.1 type: because the state vigorously promoted the energy conservation and emission reduction plan, It is expected that the frequency converter Market in China will maintain a growth rate of more than 10% in the next five years

II. Increase in the number of brands - the number of Chinese inverter brands (including foreign capital) increased from more than 70 in 1997, which promoted the upgrading of manufacturing workshops from "traditional" to "Internet of things" to more than 220 in 2007. Japanese manufacturers were the first to enter the Chinese inverter market. In 1986, China's traditional motor factories began to introduce Japanese inverter design and manufacturing technology. In 1988, the first low-voltage inverter of Japan Sanken company entered China, Toshiba, Mitsubishi, etc. entered earlier. In 1997, the number of inverter brands sold in China has exceeded 70. Among them, there are more than 50 domestic frequency converter manufacturers and 15~20 foreign brands, such as Fuji, Yaskawa, Mitsubishi and Sanken in Japan, Siemens in Germany, Schneider in France, abb in Finland, Danfoss in Denmark, etc

after this golden decade of rapid development, the number of domestic frequency converter manufacturers has increased dramatically. By the end of 2007, according to the statistics of frequency converter world, the number of frequency converter brands sold in the Chinese market has reached more than 220, which has tripled compared with 1997. Except for a few foreign brands such as Continental, CT, KEB, Vacon and Omron, most of the increased frequency converter brands are domestic brands. Most of these domestic brands are concentrated in Guangdong, Shanghai, Jiangsu, Zhejiang, Shandong and other coastal areas

III. growth of installed capacity: the installed capacity of frequency converters in China increased from more than 2 million kW in 1997 to more than 10 million kW in 2007 (estimated)

the total potential market of frequency converters in China should be 120-180 billion yuan, of which atmospheric frequency converters account for about 60% of the market share, and the demand for medium and high voltage frequency converters is relatively small. However, due to the large power and high price of a single frequency converter, it should account for about 40% of the market

in China, there are 40million wind turbines that only need speed regulation and energy saving, with power consumption of about 150billion kWh and energy saving potential of 45billion kwh/year; By the end of 2005, China's total power axial afterburner has adopted the weight afterburner. The installed capacity has exceeded 500million kW. The annual consumption of motors accounts for about 40-70%, of which high-voltage motors account for 50-60%, which is a huge market. The high-speed development of frequency converter industry in China, especially the high-voltage frequency converter with a high growth rate of 20-30% and huge market capacity, has attracted the investment of many manufacturers and funds, and the market competition is becoming increasingly fierce

from 1997 to 2007, the installed capacity of frequency converters in China increased from more than 2 million kW to more than 10 million KW. The installed capacity almost doubled, with an average annual growth rate of 17.5%. The specific growth curve after 2002

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