Compared with the traditional motor, the frequency conversion motor has any advantage

[introduction]: careful users will find that when we go to see some refrigerators, air conditioners and washing machine products, can be seen in the title of a "frequency" such keywords. Of course, here said that the frequency conversion motor is the product, then compared to the motor used in this type of home appliances, the motor has what characteristics? And what special experience can we bring? May wish to let us explore.

Compared with the traditional motor, what is the advantage of variable frequency motor? "Frequency" is everywhere;

Compared with the traditional motor, what is the advantage of variable frequency motor? Manufacturers on the promotion of variable frequency motor：

More energy saving

All household appliances in the motor running, all produce different levels of harmonic voltage and current, so that the motor in the non sinusoidal voltage, current running. High order harmonics can cause the copper loss of the motor stator, the rotor copper (aluminum) consumption, iron loss and additional loss of the increase, the most significant is the rotor copper (aluminum) consumption. Because the general AC asynchronous motor is close to the corresponding to the fundamental frequency of the synchronous speed rotating, therefore, harmonic voltage in a larger slip cutting rotor, the rotor will produce great loss. In addition, it is necessary to consider the additional copper consumption due to the skin effect. These losses will cause the motor to heat, efficiency is reduced, the output power decreases, but if the use of frequency conversion motor, its energy consumption can be reduced by about 20%-30%.

Long service life

The motor carrier frequency at run time is about several thousand to 10 kHz, which makes the motor stator windings to withstand high voltage rise rate, equivalent to the impact of high voltage motor applied the steepness of the motor, the interturn insulation is subjected to severe test. The variable frequency motor can work under the voltage of the rectifier filter, the performance can be more stable, and long life.

Little noise

Due to the vibration and noise caused by electromagnetic, mechanical, ventilation and other factors, the general induction motor becomes more complicated. Each time harmonic of frequency conversion power supply is interfered with the inherent space of the electromagnetic part of the motor, and the electromagnetic exciting force is formed. When the frequency of electromagnetic force wave and the natural vibration frequency of the motor body are identical or close, the resonance phenomenon will be produced, which will increase the noise. Because of wide operating frequency range, large speed change range, the frequency of various electromagnetic force wave is difficult to avoid the inherent vibration frequency of the various components of the motor. But the frequency conversion motor can effectively solve these problems.