The difference between AC motor frequency conversion speed regulation and voltage regulation speed regulation
Variable frequency speed regulation: large speed range, high smoothness, energy saving, can realize constant torque or constant power speed regulation, but must have dedicated frequency conversion power supply, the cost is high.
Variable frequency speed regulation: frequency conversion speed, the square of the voltage and frequency ratio is constant, that is, the frequency modulation at the same time, voltage, speed range, high smoothness, can achieve constant torque or constant power speed regulation.Voltage regulation: smoothness is good, speed range is narrow, only applicable to fan and pump load.
Voltage regulation: smoothness is good, speed range is narrow, can not be used for constant load speed regulation.
