Dec 02, 2020
Some thoughts on the miniaturization of China's inverter
The development trend of inverter technology has experienced about 30 years of research and development and application practice. With the application of new power electronic devices and high-performance microprocessors and the development of control technology, the performance-price ratio of inverters is getting higher and higher, and the volume Come smaller and smaller. The development trend of inverter technology has experienced about 30 years of research and development and application practice. With the application of new power electronic devices and high-performance microprocessors and the development of control technology, the performance-price ratio of inverters is getting higher and higher, and the volume The coming smaller and smaller, and the manufacturers are still constantly improving the reliability of the inverter to achieve further miniaturization, light weight, high performance, multi-function, and pollution-free and make new efforts.
Since the 12th Five-Year Plan was promulgated, energy conservation and emission reduction have become the key to the development of various industries. Benefiting from strategies such as energy saving, emission reduction, and environmental protection, frequency inverters are important equipment in the field of variable frequency speed regulation, and their future development potential is worth looking forward to.
During the Twelfth Five-Year Plan, China is in the stage of rapid industrialization and urbanization. The shortage of energy resources and the fragile ecological environment will further intensify. In order to achieve the reduction in energy consumption per unit GDP and major pollutants specified in the Outline of the Twelfth Five-Year Plan Reducing total emissions and other binding indicators must continuously improve China’s energy conservation and environmental protection technology, equipment and service levels, and provide solid industrial support for large-scale energy conservation, emission reduction, and vigorous development of circular economy. It is an inevitable choice for China to transform its development mode and adjust its economic structure. .
Recalling the development history of motor speed regulation, our country's frequency converter grew out of nothing. From DC to AC; from V/F control to vector control; from driving the fan, water flow to driving the lathe at 5 revolutions per minute; from the frequency conversion control of the injection molding machine to the servo control, to the asynchronous servo control, the development is too fast.
The development of domestic frequency conversion speed regulation technology has experienced changes from scratch in the 1990s, small-scale mass production in the early 21st century, and large-scale mass production during the 11th Five-Year Plan period. There are about 300 domestic inverter companies and about 5,000 dealership stores. The domestic production and sales volume in 2012 was about 30 billion yuan. Domestic low-voltage inverter manufacturers account for about 28% and 30% of the market share.
In the domestic market, a large number of outstanding enterprises with excellent technology and rapid development have emerged rapidly, which has driven the rapid progress of the inverter industry. The second is the development of inverter technology. Including matching with motors and encoders.
With the development and comprehensive utilization of inverter high-speed technology, the inverter industry has achieved unprecedented development and application in the modernization of cement, elevators, electric power, and transportation, transportation, power, electronics, and environmental protection. Almost all walks of life in the national economy are related to inverters. The device is inseparable. In order to promote the adjustment of the industry and product structure, seek development opportunities, and promote the exchange and cooperation between domestic and foreign inverter manufacturing industries, users and projects, relevant companies should actively create new prospects.
The large environment of industrialization, informatization, urbanization, and agricultural modernization has provided a huge market and development space for the operation of inverters. The industry predicts that the demand for inverters will double in the next five years. Power electronic power conversion technology, micro The technology with electronic control as the core will get greater development, and the frequency conversion speed regulation technology will also have better development prospects.
At present, my country's energy-saving and environmental protection industry has huge potential and has broad prospects for economic growth. By 2020, my country's technologically feasible and economically reasonable energy-saving potential will exceed one billion tons of standard coal, which can drive trillions of yuan of investment; the total output value of the energy-saving service industry can exceed one trillion yuan. At present, domestic motors with variable loads and energy-saving potential are at least several hundred million kilowatts, thus providing a huge market for the application of frequency converters. In recent years, my country's frequency converter market is maintaining a growth rate of 12% to 15%. It is expected that within 5 years, the frequency converter market demand will continue to maintain a growth rate of more than 20%. After 10 years, the inverter market will gradually become saturated.
At present, there are at least hundreds of millions of kilowatts of motors with variable loads and energy-saving potential in China, which provides a huge market for the application of frequency converters. Since frequency converters can achieve high-efficiency energy saving and improved technology in many industries, this will inevitably promote the wide application of frequency converters in various industries.
SAFESAVE company, based on this, developed the 200MN-small inverter, focusing on the development of inverter miniaturization, and realizing standardized, professional and scientific production, so as to provide more convenient and practical products to more customers. Product and work hard.