Working principle of wind speed controller
1. Variable frequency energy-saving:
In order to ensure the reliability of production, various production machinery are designed with a certain margin when equipped with power drives. The motor cannot operate at full load unless it meets the power drive requirements,
The excess torque increases the consumption of active power, resulting in energy waste. When the pressure is high, it can reduce the operating speed of the motor, allowing it to save energy while maintaining a constant voltage.
2. When the motor speed changes from N1 to N2, the variation relationship of the motor shaft power (P) is: P2/P1=(N2/N1) 3, which shows that reducing the motor speed can achieve a cubic level energy-saving effect.
3. Dynamic adjustment energy-saving: quickly adapt to load changes and supply maximum efficiency voltage. The frequency converter has a measurement and control output function of 5000 times per second in the software, which always maintains the high-efficiency operation of the motor output.
4. Energy saving through the V/F function of the frequency converter itself: while ensuring the output torque of the motor, the V/F curve can be automatically adjusted. Reduce the output torque of the motor, decrease the input current, and achieve energy-saving status.
5. Variable frequency with built-in soft start energy-saving: During full voltage starting of the motor, due to the required starting torque of the motor, it needs to absorb 7 times the rated current of the motor from the power grid, and a large starting current wastes electricityThe voltage fluctuations in the power grid also cause significant damage, increasing line and transformer losses. After adopting a frequency converter, the starting current can range from 0 to the rated current of the motor, reducing the impact of starting current on the power grid and saving energy
By reducing electricity costs and minimizing the impact of startup inertia on the high inertia speed of the equipment, the service life of the equipment has been extended.

The advantages of using a wind speed controller
1. The drive motor can be soft started without 7 times the impulse current required for starting
2. It can infinitely adjust the speed to avoid mechanical resonance points and operating noise
3. By detecting physical quantities and inputting them into the PID port, a closed-loop automatic control system can be formed
4. Capable of detecting blockages or ruptures in pipelines
5. Soft start characteristics can extend the operating life of mechanical loads
6. The air volume and pressure of the fan can be controlled according to demand to maintain stable quality of the production process.
7. According to different purposes and specific performance, the energy-saving effect can reach 20% -60%. Theoretically, the saved electricity cost can be calculated within six months (after years of actual observation: based on the supporting equipment)
Depending on the specific operating conditions, up to six to nine months can save all investment costs, and the equipment will continue to operate in energy-saving mode, contributing to low consumption and high efficiency.

8. Built in Siemens 6SE70 series frequency conversion system, exclusively using self-developed intelligent power module IPM for the entire series, making frequency conversion quieter and more reliable in performance.
9. The combination of digital signal processor (DSP) and high-speed microcomputer control technology enables fast response with a torque response speed of less than 0.1 seconds.

10. The use of feedback free vector control technology truly achieves ultra-low frequency high torque control performance, and can start with full load at 0.2HZ; Provide 150% high starting torque at low frequency of 1Hz, with a speed range of 0.1~400
Hz， The speed stability rate is less than 1%. Until now, our company is still the only one that can perfectly apply this technology and retain the relevant technology patents.
11. Selecting this function can automatically adjust the output current according to the size of the external load, in order to improve the system's ability to resist sudden changes in external load and other disturbances, and prevent frequent system tripping.
12. The automatic energy-saving function of the wind speed controller can automatically optimize and select the operating curve while ensuring that the speed and torque remain unchanged, and achieve the same control level with minimal energy consumption to improve the system's efficiency.
13. Our company has independently developed a comprehensive voltage automatic adjustment function (AVR), which ensures that power grid fluctuations within a large range will not affect the normal operation of the system (normal between 320-540V). This not only ensures that the motor output torque and speed remain unchanged, but also avoids losses caused by unnecessary shutdowns.
14. It is particularly important to note that when controlling variable torque loads such as fans and pumps, the wind speed controller can automatically upshift to control the higher-level motor, greatly saving users' costs.
15. Built in PID can easily form a closed-loop control system, improve control accuracy, save costs, and increase system reliability; Dual CPU hardware control further enhances the perfection of advanced vector control.