Energy conservation is a long-term strategic goal for China's sustainable development.

And frequency converters are an important component in industrial control systems. Installing them at the front end of the frequency converter can achieve the functions of speed regulation and energy conservation, and they have significant advantages in the field of power energy conservation.

So, how does a frequency converter achieve energy savings? Can energy be saved just by installing a frequency converter?

1.The energy-saving principle of frequency converters

Precise control

The frequency converter can precisely regulate the motor speed as needed, allowing the motor to operate at reduced power when it does not need to run at full speed, thereby achieving the goal of energy saving.

Reduce start-stop frequency

The frequency converter can achieve smooth speed regulation, significantly avoiding frequent motor startups and stops. During the start-stop process of the motor, a large amount of energy is consumed. By reducing the number of start-stop operations, the system energy consumption can be effectively reduced.

Adjust output power

The frequency converter can adjust the output power of the motor according to the actual working load, effectively avoiding the motor running at a high power level for a long time, thereby achieving the goal of energy saving.

Optimize motor operating conditions

By controlling the motor speed, the frequency converter can optimize the motor's operating conditions, thereby reducing the efficiency loss of the motor and further reducing energy consumption.

Reduce noise and vibration

While controlling the motor speed, the frequency converter can also reduce mechanical vibration and noise, which is conducive to optimizing system efficiency and indirectly influencing energy saving.

Power factor correction

By using the control mechanism of the frequency converter, the power factor of the motor can be corrected, thereby improving the motor's efficiency and reducing system energy consumption.

Optimize load power and operating condition parameters

When the motor load rate is low, the energy-saving effect of the frequency converter is more obvious. By optimizing the original operating condition parameters, such as power, voltage, speed, and adjustable values, it can also play a role in energy saving.

2.Energy-saving conditions for frequency converters

The frequency converter does not always have the energy-saving function in all situations. In some cases, using the frequency converter may not result in significant energy-saving effects. However, when the frequency converter operates under the industrial frequency, it does have the energy-saving function. And only when all three conditions are met simultaneously can the energy-saving effect brought by the frequency converter be felt more noticeably.

The equipment is of high power and is mainly used for fans and pump-type loads.

The device itself has energy-saving support, usually with software support.

The equipment needs to operate continuously for a long time.