Working principle of inverter compressor

Working principle of inverter compressor Working principle of inverter compressor The principle of inverter compressor inverter controller is to convert the alternating current in the power grid into a square wave pulse output. By adjusting the frequency of the square wave pulse (that is, adjusting the duty cycle), the speed of the motor driving the compressor can be controlled. The higher the frequency, the higher the speed. The working principle of the variable frequency screw compressor: First, under a certain pulse width (to ensure that the magnetic circuit is not saturated), change the frequency of the motor drive current. The second is to change the working speed of the compressor by adjusting the voltage-pseudo frequency conversion There are two types of air conditioner inverter compressors. One is a three-phase AC motor, which can be adjusted by AC frequency converter. One is a DC motor whose rotor is a permanent magnet. The speed is adjusted by adjusting the pulse width of the DC power. In the strict sense, it cannot be counted as a frequency conversion, but can only be said to be a DC speed regulation. In layman's terms: through the frequency converter, the current frequency is changed, which in turn changes the speed of the compressor motor. Of course, the power is also reduced (power = voltage × current, it is said that a Gree air conditioner can be reduced to 45 watts!). Another: sub-AC frequency conversion, DC frequency conversion, full DC frequency conversion. The latter is the most power-saving. Just go from AC to DC.

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