Compared to the traditional motor frequency motor what are the advantages

Careful users will find that when we go to check some refrigerators, air conditioners or washing machine products, can see the title with "frequency" such a keyword. Of course, here is the frequency conversion is the product of variable frequency motor, then compared to the previous we used this kind of electrical appliances, the motor, what are the characteristics of the inverter motor? And give us what special experience? Let us Explore together.

· More energy saving

All household appliances in the motor operation, have different degrees of harmonic voltage and current, the motor in non-sinusoidal voltage and current operation. High harmonics cause stator copper losses, rotor copper losses, iron losses, and additional losses, most notably rotor copper losses. Because ordinary AC induction motors rotate at synchronous speeds close to the fundamental frequency, high rotor voltage losses can result when higher voltage harmonics cut rotor bars with larger slip. In addition, the additional copper consumption due to the skin effect needs to be considered. These losses will make the motor extra heat, reduce efficiency, reduce output power, but if you use a variable frequency motor, the energy consumption can be reduced by 20% -30%.

·long lasting

When the motor is running, the carrier frequency is about several thousands to tens of kilohertz, which makes the motor stator windings to withstand a high rate of voltage rise, which is equivalent to imposing a steep surge voltage on the motor to insulate the motor from turn to turn To withstand the more harsh test. The inverter motor can work under the voltage under the rectifier filter, the performance can be more stable, and longer life expectancy.

Low noise

Ordinary asynchronous motor due to electromagnetic, mechanical, ventilation and other factors caused by the vibration and noise become more complicated. Various time harmonics contained in the variable frequency power supply interfere with the inherent space harmonics of the electromagnetic part of the motor to form various electromagnetic exciting forces. When the frequency of the electromagnetic force wave and the natural frequency of the motor body is the same or close to the resonance phenomenon, thus increasing the noise. Due to the wide range of motor operating frequency, speed range, a variety of electromagnetic force wave frequency is difficult to avoid the inherent vibration frequency of the motor components. However, the inverter motor can effectively solve these problems.

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