Industrial energy saving is becoming one of the cores of industrial development. Due to the flexible speed regulation function of the frequency converter, this product has obvious advantages in the field of power saving. Judging from the current development trend, the frequency conversion industry will continue to follow the development path of speed regulation and energy saving.
Frequency conversion speed regulation technology is an important part of the industrial control system, which is installed at the front end of the motor to realize speed regulation and energy saving. The rear end of the high-power inverter mainly drives fans and water pumps, and the actual power-saving effect reaches 30%~60%.
The future market development of this industry will benefit from the transformation of large and medium-sized projects. Low-voltage frequency converters together with control layer and execution layer equipment constitute an automatic control system, and its future development will benefit from the “equipment upgrade” of the manufacturing industry.
For the first time, the frequency conversion technology is used for stepless speed regulation of the motor, and the output frequency is changed by controlling the on-off of the semiconductor device, so as to realize the soft start of the back-end traction AC motor, the frequency conversion speed regulation and the improvement of the operation accuracy, and realize the over-current and over-voltage and overload protection.
Compared with the previous mechanical speed regulation method, the variable frequency speed regulation range is wide, up to 100% ~ 5%; the control accuracy is high, up to 0.5%; due to the 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.
Experts compared the effects of several major energy-saving products in electrical equipment, among which the efficiency of frequency converters is as high as 30% to 60%. When in use, it only needs to be installed on the front end of the motor, and there is little change to the original equipment.
Therefore, with the introduction of the concept of Industry 4.0, therefore, in the upgrading of manufacturing equipment and industrial energy conservation and environmental protection projects, it has been established that the future development of the industry will still follow the path of “simultaneous development of speed regulation and energy conservation”.
