Twelfth Five-Year Plan Energy Saving is Main Product of Frequency Conversion Products

With the continuous improvement of the degree of industrial automation, frequency conversion has been widely used. In this era of energy saving, frequency converter products have obvious advantages in the field of energy conservation due to their flexible speed control functions. From the current development trend, the inverter industry will continue to follow the development path of speed and energy conservation.

The frequency conversion technology was first used to steplessly regulate the motor, and the output frequency was changed by controlling the on/off of the semiconductor device so as to realize the soft start, frequency control, and operation accuracy of the trailing-end drive AC motor, and to achieve over-current. , overvoltage, overload protection. Compared with the past mechanical speed control methods, the range of variable frequency speed control can reach 100% to 5%; the control accuracy is high and can reach ±0.5%; because it is stepless speed regulation, the soft start of the motor and the entire production system can be realized. Fully automatic control, thereby reducing the impact on the power grid.

Relevant experts compared the effects of several major energy-saving products in electrical equipment, in which the efficiency of the inverter is as high as 30% to 60%. When used, it is only required to install on the front of the motor, and the changes to the original equipment are minor.

Therefore, in the manufacturing equipment upgrade and industrial energy conservation and environmental protection projects proposed in the 12th Five-Year Plan, it is established that future industry development will still take the same path of speed regulation and energy conservation. Subdivided into products, it is expected that low-voltage inverters will be replaced by automation and import substitution as the main line. Domestic companies will focus on the development of control and drive technologies; high-voltage inverters will rely on national energy conservation and environmental protection policies, and the downstream industries will still be large-scale industrial equipment such as electricity, metallurgy and cement. Mainly to transform, intensified competition will stimulate the acceleration of localization of high-performance products.