Introduction to the relationship between inverter voltage and frequency

The inverter applies modern science and technology, has basic functions such as voltage regulation, frequency regulation, voltage stabilization, speed regulation, etc., and is widely used in various fields. Through the above content, the relationship between the voltage and frequency of the device will be explained below. :
  The electromagnetic torque of any motor is the result of the interaction of current and magnetic flux. The current is not allowed to exceed the rated value, otherwise it will cause the motor to heat up. Therefore, if the magnetic flux is reduced, the electromagnetic torque of the inverter must also be reduced, resulting in a reduction in load capacity.
From the formula E=4.44*K*F*N*Φ, it can be seen that the magnetic circuit of the motor changes in a considerable range with the operating frequency fX when the inverter speed is adjusted. It is extremely easy to make the magnetic circuit of the motor Severe saturation results in severe distortion of the excitation current waveform and a spike current with a very high peak value.
  Therefore, the frequency and voltage should be changed in proportion, that is, while changing the variable frequency of the frequency converter, control the output voltage of the frequency converter to keep the magnetic flux of the motor constant and avoid the phenomenon of weak magnetic field and magnetic saturation. This control method is mostly used for energy-saving inverters such as fans and pumps.